Dissertations / Theses on the topic 'Water Consumption'
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1
Kambanellas, Chrysostomos Andreou. "Water consumption and recycling of grey water in Cyprus." Thesis, University of South Wales, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333926.
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Sulaimani, Abdulaziz. "Residential Water Consumption in Saudi Arabia." Digital Commons at Loyola Marymount University and Loyola Law School, 2015. https://digitalcommons.lmu.edu/etd/437.
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The rate of residential water consumption m Saudi Arabia are unsustainable given the country's limited freshwater supply and steady population growth; currently, water consumption per capita is 91 % above the global average. To address this growing problem, several possible solutions are considered: Better informing the public about the need for conservation, increasing and restructuring the pricing of residential water, and implementing "greywater" recycling systems at the individual household level. Based upon surveyed residents' preferences, the implementation of greywater recycling systems is demonstrated to be the preferred solution. Implementation of these systems nation-wide requires the coordination of the Ministry of Water and Electricity and the National Water Company, which would be presented in an appropriate system architecture, and several risks need to be mitigated. If these concerns are addressed, the proposed solution would be effective at addressing the water needs of the country for the future.
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com, emmayuen@hotmail, and Emma Yuen. "Water Consumption Patterns in Australian Aboriginal Communities." Murdoch University, 2005. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20051119.134422.
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Aboriginal Australians have a significantly lower health status than their non-Aboriginal counterparts. To facilitate healthy living practices necessary for good health, a high level investment is currently made in water services, on the assumption that there is a relationship between the volume and quality of water supplied with health outcomes, despite the high economic and environmental cost. This thesis investigates whether the current design supply criteria of 1000-1200 litres per person per day of water, meeting the Australian Drinking Water Quality Guidelines, is both sufficient and necessary to improve the health of Aboriginal Australians. The scope of the thesis is limited to the sufficiency of design guidelines although it necessarily also touches on the broader issues of Aboriginal health.
Both qualitative and quantitative methods were used to explore current water consumption patterns of consumers at multiple hierarchical levels (community, household and individual) and hence the requirements of physical infrastructure on which consumers depend. Multiple linear regression was used to consider factors correlated with supply volume, while metering was used at both the domestic and appliance level to determine where and how water was used. Meters were installed on fixtures in two houses in a community near Alice Springs. This was then complemented by qualitative information obtained through focus group discussions, key informant interviews and observation in the field. The appropriateness of the supply of high quality water for all uses was addressed by considering the volume of drinking water intake and its impact on the derivation of water quality guidelines. This was achieved by a face-to-face survey involving 57 volunteers. Fieldwork was conducted predominantly in three communities near Alice Springs although some additional data was collected in other communities in Western Australia and the Northern Territory.
The results showed that the factors influencing water consumption were highly complex and variable between communities and individuals. However, there were some culturally specific needs identified in Aboriginal communities, such as the need for temperature and dust control, as well as the reduction of losses. The unique characteristics of each community made it difficult to provide a more precise estimate for design supply. As a result, overly conservative guidelines such as those already used are necessary in the short term despite there being no guarantee of improved health. In the long term, issues of community governance and capacity building will start to be addressed, and the realisation that social systems are both complex and dynamic will need to be reflected in policy. These issues were represented in a systemic conceptual model at the end of the thesis, which also highlighted inadequacies of reductionist approaches such as design supply guidelines. The thesis concluded that complex problem situations such as that of health, require a systems approach.
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Yuen, Emma. "Water consumption patterns in Australian Aboriginal communities /." Access via Murdoch University Digital Theses Project, 2004. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20051119.134422.
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Jalali, Ejlal. "Water consumption and factors influencing hydration status." Thesis, Loughborough University, 2012. https://dspace.lboro.ac.uk/2134/11079.
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Objectives. This study aimed to provide data on water intake from food and beverages of free-living adults in their natural environment, and investigate how this is affected by physiological, psychological, social and environmental factors. A further aim was to monitor the hydration status of free-living adults and relate this data to water intake. Methods The consumption of all food and beverages was recorded in a diary over three consecutive days by 80 healthy adults (40 males, 40 females), aged 18 to 65 years, who were instructed to continue their normal eating and drinking habits and lifestyles throughout the study. The data was analysed to determine total daily water intake and how this was affected by time of day, day of the week, presence of others, location of consumption, age and subjects mood. A further 20 healthy subjects (10 males, 10 females) repeated these procedures but also had blood samples taken for monitoring of blood indices (haemoglobin concentration, haematocrit, sodium concentration, and potassium concentration) and provided urine samples for the measurement of urine indices (volume, colour, specific gravity, osmolality and sodium, potassium, chloride, and creatinine concentrations). Results The total volume of water consumed by the 80 subjects was 2229 882 ml/day (mean standard deviation). Females tended to consume more water than males (2402 827 ml/day vs 2056 911 ml/day, P = 0.079). Similar volumes were consumed by the additional 20 subjects in the hydration status study. Females appeared euhydrated; males appeared mild dehydrated, having a higher morning and 24-hour urine specific gravity and osmolality than females (P < 0.05, respectively). Conclusions The mean daily total volume of water consumed by females in this study was greater than the adequate intake value set by the European Food Safety Authority; for males it was lower. Females were euhydrated during the study but males tended to be mild dehydrated, reflecting their comparative water intakes.
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Sell, D. "Oxygen consumption and water balance in insects." Thesis, University of Aberdeen, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354956.
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Yuen, Emma. "Water consumption patterns in Australian Aboriginal communities." Thesis, Yuen, Emma (2005) Water consumption patterns in Australian Aboriginal communities. PhD thesis, Murdoch University, 2005. https://researchrepository.murdoch.edu.au/id/eprint/419/.
Full textAbstract:
Aboriginal Australians have a significantly lower health status than their non-Aboriginal counterparts. To facilitate healthy living practices necessary for good health, a high level investment is currently made in water services, on the assumption that there is a relationship between the volume and quality of water supplied with health outcomes, despite the high economic and environmental cost. This thesis investigates whether the current design supply criteria of 1000-1200 litres per person per day of water, meeting the Australian Drinking Water Quality Guidelines, is both sufficient and necessary to improve the health of Aboriginal Australians. The scope of the thesis is limited to the sufficiency of design guidelines although it necessarily also touches on the broader issues of Aboriginal health.
Both qualitative and quantitative methods were used to explore current water consumption patterns of consumers at multiple hierarchical levels (community, household and individual) and hence the requirements of physical infrastructure on which consumers depend. Multiple linear regression was used to consider factors correlated with supply volume, while metering was used at both the domestic and appliance level to determine where and how water was used. Meters were installed on fixtures in two houses in a community near Alice Springs. This was then complemented by qualitative information obtained through focus group discussions, key informant interviews and observation in the field. The appropriateness of the supply of high quality water for all uses was addressed by considering the volume of drinking water intake and its impact on the derivation of water quality guidelines. This was achieved by a face-to-face survey involving 57 volunteers. Fieldwork was conducted predominantly in three communities near Alice Springs although some additional data was collected in other communities in Western Australia and the Northern Territory.
The results showed that the factors influencing water consumption were highly complex and variable between communities and individuals. However, there were some culturally specific needs identified in Aboriginal communities, such as the need for temperature and dust control, as well as the reduction of losses. The unique characteristics of each community made it difficult to provide a more precise estimate for design supply. As a result, overly conservative guidelines such as those already used are necessary in the short term despite there being no guarantee of improved health. In the long term, issues of community governance and capacity building will start to be addressed, and the realisation that social systems are both complex and dynamic will need to be reflected in policy. These issues were represented in a systemic conceptual model at the end of the thesis, which also highlighted inadequacies of reductionist approaches such as design supply guidelines. The thesis concluded that complex problem situations such as that of health, require a systems approach.
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Yuen, Emma. "Water consumption patterns in Australian Aboriginal communities." Yuen, Emma (2005) Water consumption patterns in Australian Aboriginal communities. PhD thesis, Murdoch University, 2005. http://researchrepository.murdoch.edu.au/419/.
Full textAbstract:
Aboriginal Australians have a significantly lower health status than their non-Aboriginal counterparts. To facilitate healthy living practices necessary for good health, a high level investment is currently made in water services, on the assumption that there is a relationship between the volume and quality of water supplied with health outcomes, despite the high economic and environmental cost. This thesis investigates whether the current design supply criteria of 1000-1200 litres per person per day of water, meeting the Australian Drinking Water Quality Guidelines, is both sufficient and necessary to improve the health of Aboriginal Australians. The scope of the thesis is limited to the sufficiency of design guidelines although it necessarily also touches on the broader issues of Aboriginal health.
Both qualitative and quantitative methods were used to explore current water consumption patterns of consumers at multiple hierarchical levels (community, household and individual) and hence the requirements of physical infrastructure on which consumers depend. Multiple linear regression was used to consider factors correlated with supply volume, while metering was used at both the domestic and appliance level to determine where and how water was used. Meters were installed on fixtures in two houses in a community near Alice Springs. This was then complemented by qualitative information obtained through focus group discussions, key informant interviews and observation in the field. The appropriateness of the supply of high quality water for all uses was addressed by considering the volume of drinking water intake and its impact on the derivation of water quality guidelines. This was achieved by a face-to-face survey involving 57 volunteers. Fieldwork was conducted predominantly in three communities near Alice Springs although some additional data was collected in other communities in Western Australia and the Northern Territory.
The results showed that the factors influencing water consumption were highly complex and variable between communities and individuals. However, there were some culturally specific needs identified in Aboriginal communities, such as the need for temperature and dust control, as well as the reduction of losses. The unique characteristics of each community made it difficult to provide a more precise estimate for design supply. As a result, overly conservative guidelines such as those already used are necessary in the short term despite there being no guarantee of improved health. In the long term, issues of community governance and capacity building will start to be addressed, and the realisation that social systems are both complex and dynamic will need to be reflected in policy. These issues were represented in a systemic conceptual model at the end of the thesis, which also highlighted inadequacies of reductionist approaches such as design supply guidelines. The thesis concluded that complex problem situations such as that of health, require a systems approach.
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Sawangchareon, Dumrongchai. "The Analysis of the Demand for Residential Water in the City of Denton." Thesis, North Texas State University, 1986. https://digital.library.unt.edu/ark:/67531/metadc500727/.
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The main objective of this study is to analyze the demand for water in Denton. The data used for the study are obtained from the City of Denton Utilities Department, the Tax Appraisal District and government documents. The 121 households which have perfect ten years historical data of water consumption were selected to be the representatives of all households in Denton. The study reveals that the change in water consumption significantly relates to the change in marginal price. Furthermore, the weather variables also have strong effects on the water consumption, especially during summer. The coefficients of income and a "difference" variable are found to have the opposite sign but are not equal in magnitude. In fact, they should be equal in magnitude, but opposite in sign. While the estimated coefficients on all independent variables were highly significant statistically, the resulting coefficient on the house size variable was statistically insignificant in the model test. The results show that the difference variable is required in the model. It also had some effect on the water consumption. It is found that there is a small change in water consumption when the lot size is increased.
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Hazam, John Eric 1947. "Desert mule deer water consumption in southcentral Arizona." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/191928.
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I monitored desert mule deer (Odocoileus hemionus crooki) to determine their drinking frequency and water consumption in the Picacho Mountains in the summer of 1986 when temperatures were ≤46 C. Three radio-collared males consumed water 1 time/24 hours over 10 days. Deer consumed from 1.52 to 6.01 liters/visit (X = 3.70, SE = 0.13, N = 54). Females drank more (X = 4.16, N = 20) than males (X = 3.55, N = 24) during late summer (P < 0.05). To measure water consumption of large, free ranging mammals, I developed a technique using a microflowmeter. Water consumption was measured in 0.01 liter units and measurements were linear for volumes ≥1 liter. Field accuracy was within 1%. I observed nocturnal behavior from 250 m using infrared lights and high magnification lenses with a nightscope. Desert mule deer can be censused in summer based on the frequency that they visit waterholes. The minimum water requirements for a captive female desert mule deer (55 ml/kg⁰•⁸/day) indicate an ability to conserve water.
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Sant''Ana, Daniel Richard. "A socio-technical study of water consumption and water conservation in Brazilian dwellings." Thesis, Oxford Brookes University, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.532165.
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Tejada, Francisco Javier. "Quantifying the life cycle water consumption of a passenger vehicle." Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/43637.
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Various studies have pointed out the growing need to assess the availability of water sources in regions around the world as future forecasts suggest that water demands will increase significantly for agricultural, industrial and human consumption while freshwater resources are being depleted. One such emerging issue is the effect of industrial operations on said resources, specifically from automobiles. With numerous localities experiencing stresses on water availability, key stakeholders - suppliers, automakers, and vehicle end-users - need to better realize the effect vehicle manufacturing, usage, and disposal have on water resources.
While efforts to improve the overall environmental performance of vehicles have mainly concentrated on improving technologies, there has also been considerable effort devoted to characterizing the life-cycle performance of the vehicle product system. However, much of this work has focused on energy consumption and carbon emissions while few studies have examined water. The difference between water use versus water consumption were highlighted and the life-cycle water consumption of a gasoline-powered midsize vehicle were analyzed from material extraction through production, use, and final disposition/end of life. This analysis examines each of the phases to determine a carâ s water footprint using data from the EcoInvent Life Cycle Analysis database as well as data collected from literature sources. Although water use is typically metered at the factory level, water consumption (i.e., water lost through evaporation and/or incorporation into a material, part, and/or product) is much harder to quantify. As shown in this thesis, the difference can be an order of magnitude or more because much of the water that goes into the different processes is either reused, recycled, or discharged back to its original source. The use phase of a vehicle has the biggest impact on the overall vehicle water consumption, followed by material production, whereas water consumption for the end of life processing seems to be relatively insignificant. It is also shown that the impact of energy consumption as part of the total water footprint is very large when compared to the other processes given the dependence on water for energy production.
The assessment in this thesis represents a life-cycle inventory and serves as an initial benchmark as no previous study has been completed to determine the water consumption for the life of a vehicle, let alone for most other products. The impact of water consumption varies by region and locality, and a differentiation of impact would still be needed to determine whether the water consumption actually happens in water scarce regions or not.
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Trujillo, Iliana Cardenes. "Quantifying the energy consumption of the water use cycle." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:df481801-cce1-4824-986c-612f4673b8eb.
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The management and delivery of water and wastewater consume significant amounts of energy, mostly in the form of electricity. With increasing populations, climate change, water quality issues and increasing energy prices, it is more important than ever to understand energy consumption patterns. Energy usually represents the largest operational cost in water utilities around the world, yet there is limited work aiming to quantify the specific relationship between water and its associated energy, and understand its implications for future decision-making. This thesis presents variousmethodological approachesto quantify and understand energy use in water infrastructure systems, as well as how to incorporate them in decision-making processes. The main hypotheses are as follows: firstly, a detailed understanding of the use of energy in water infrastructure systems can facilitate more efficient and sustainable water infrastructure systems and, secondly, that incorporating energy into planning for water and wastewater resources can help understand the impacts of decisions and establish trade-offs between actions. To test these hypotheses, the thesis presents an analytical approach to various areas. Firstly, it identifies, maps and quantifies the energy consumption patterns within a water infrastructure system. This is then used to identify inefficiencies and areas of potential energy saving. Secondly, it incorporates detailed energy costs into short and long-term water resources management and planning. Thirdly, it evaluates trade-offs between energy costs and changing effluent quality regulations in wastewater resources. The Thames River basin, in the south-east of England, is used as a case study to illustrate the approach. The results demonstrate that a systematic approach to the quantification of energy use in a water infrastructure system can identify areas of inefficiencies that can be used to make decisions with regards to infrastructure planning. For example, water systems have significant geo-spatial variations in energy consumption patterns that can be addressed specifically to reduce negative trade-offs. The results also show that incorporating detailed energy information into long-term water resources planning can alter the choices made in water supply options, by providing more complete information. Furthermore, methodologically, they show how several methodological approaches can be used to support more complete decision-making in water utilities to reduce short and long-term costs. In this particular case study, the results show that there are important differences in energy consumption by region, and significant differences in the seasonal and energy patterns of water infrastructure systems. For example, water treatment was shown to be the largest consumer of energy within the whole system, compared with pumping or wastewater treatment; but wastewater treatment energy consumption was shown to be the fastest growing over time due to changes in water quality regulatory frameworks. The results show that more stringent effluent standards could result in at least a doubling of electricity consumption and an increase of between 1.29 and 2.30 additional million tonnes of CO2 a year from treating wastewater in large works in the UK. These are projected to continue to increase if the decarbonisation of the electricity grid does not occur fast enough. Finally, the thesis also shows that daily energy consumption can be reduced by up to 18% by optimally routing water through a water network. optimization of water networks, and that a change in discount rates could change the daily operating costs by 19%, that in turn leads to a resulting different set of optimal investment options in a water supply network.
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Badri, Babiker Ahmed B. "Rural domestic water consumption in Sudan : an entitlements approach." Thesis, University of Liverpool, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250398.
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Welling, Karen Noiva. "Modeling the water consumption of Singapore using system dynamics." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/65749.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Architecture, 2011.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 217-226).
Water resources are essential to life, and in urban areas, the high demand density and finite local resources often engender conditions of relative water scarcity. To overcome this scarcity, governments intensify infrastructure and project demand into the future. Growth in the economy, population, and affluence of cities increase water demand, and water demand for many cities will increase into the future, requiring additional investments in water infrastructure. More sustainable policies for water will require capping socioeconomic water demand and reducing the associated demand for non-renewable energy and material resources. The thesis consists of the formulation of a System Dynamics model to replicate historic trends in water consumption for the growing city of Singapore. The goal of the model is to provide a platform for assessing socioeconomic demand trends relative to current water resources and water management policies and for examining how changes in climate and infrastructure costs might impact water availability over time. The model was calibrated to historical behavior and scenarios examined the vulnerability of supply to changing demand, climate, and cost. The outcome is a qualitative dynamic assessment of the circumstances under which Singapore's current policies allow them to meet their goals. Singapore was chosen as the case study to demonstrate the methodology, but in the future, the model will be applied to other cities to develop a typology of cities relative to water resources.
by Karen Noiva Welling.
S.M.
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Murphy, Brittany Leigh. "Effect of Water Consumption on Resting Metabolism in Adults." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8405.
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This study analyzed the acute effect of water consumption on resting metabolic rate (RMR). It was hypothesized that water would have a small, nonclinically significant effect on RMR. Men and women ages 18–40 years participated in a crossover study in which each participant received a No Water and Water condition (order determined randomly) with a 7-day washout period between each condition. Both conditions began with visual analog scales to gauge hunger and thirst levels, urine spectrometry to quantify hydration status, and height and weight measurements. The No Water condition consisted of a 30-minute rest period followed by 45 minutes of RMR testing. The Water condition was identical except for the administration of 500 ml of purified water at 3 °C 10 minutes prior to the beginning of the RMR measurement. Resting metabolic rate testing was done via indirect calorimetry. There was not a condition-by-time difference in 24-hour resting energy expenditure, oxygen consumption, or metabolic equivalents when including all data points and controlling for nonlinearity (ps > 0.0682). There was a significant difference in respiratory quotient (RQ) (F = 13.73; p = 0.0006) with the No Water condition showing a slightly higher RQ than the Water condition. The nonlinear pattern was primarily driven by the first several minutes of testing. Accordingly, we completed analyses without the first 5 minutes of data. The results persisted; that is, there was no condition-by-time effect in 24-hour resting energy expenditure, oxygen consumption, or metabolic equivalents (ps > 0.2435). Further, the RQ remained significantly different (F = 10.57; ps > 0.0023); however, it was slightly higher in the Water condition. This study did not support our hypothesis that consumption of 500 ml of water would have a measurable effect on RMR and fuel utilization compared to not consuming water. Rather, this study replicates other studies that suggest there is not an acute measurable effect of water consumption on RMR. Nevertheless, one positive application of these findings is that water may be a suitable control in RMR studies. In addition, these results should not discourage overall water consumption for healthy functioning. Further, consumption of water-rich foods over time could be an effective strategy for weight management (as shown in other studies). Future studies could attempt to determine if larger volumes of water or different temperatures of water have an effect on RMR.
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Huntra, Patcha. "Climate Effects on Water Consumption in Las Vegas Nevada." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1511867565654703.
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Lövqvist, Erika. "Nudging for sustainable water consumption : Positive vs. negative information." Thesis, Linnéuniversitetet, Institutionen för nationalekonomi och statistik (NS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-105231.
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Previous literature shows that information influences people's environmental friendly behavior, and is a surprisingly strong motivator. It is not only the content of information that significantly influences attitudes and behavior intentions, people are also sensitive for how information is framed. Recent literature shows that people react differently in the environmental context, depending on whether the information is framed as gain or loss outcomes. To the best of my knowledge, it has not been investigated whether stated information about environment situations should be positively or negatively framed to be mostly effective. I conducted an online experiment with a sample of students from Linnaeus University in Växjö, Sweden. Treatment group 1 received positively framed information about the water situation, and treatment group 2 received negatively framed information with the same informational. A control group did not receive any information. Instead of asking respondents for their water saving intentions only, I measure their intentions through actual donation to a water charity. This way, their response is costly and therefore more credible. My experiment indicates that positively framed water conservation nudges could have an impact on real world water consumption, at a low cost of implementation.
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Tecle, Aregai. "Water Consumption of Common Plants in the Southwest U.S." Arizona-Nevada Academy of Science, 2004. http://hdl.handle.net/10150/296607.
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Du, Plessis Jacobus Lodewikus. "Estimating domestic outdoor water demand for residential estates." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86695.
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Thesis (MEng)--Stellenbosch University, 2014.ENGLISH ABSTRACT: The outdoor water consumption of residential properties is a major contributor to the seasonal fluctuation of the overall water consumption of these properties. The estimation of the relating outdoor water demand has become valuable to property developers and planners alike. This could enable designers to optimise designs of water distribution networks and assist in water resource planning and gaining legislative approvals. For the purposes of this study the outdoor water-use components were mathematically defined and combined to develop an outdoor water-demand model. In order to evaluate the results of an outdoor water demand model on a monthly temporal scale it was necessary to develop a proxy outdoor water consumption evaluation method based on the metered monthly consumption of residential properties. The method entailed verifying that the generally non-seasonal indoor water consumption as a function of the winter water consumption. This entailed analysis of the total monthly, indoor and outdoor water consumption data adopted from a noteworthy North American water end-use project. The indoor water consumption estimated in this manner could then be subtracted from the overall monthly water consumption to obtain estimated monthly outdoor water consumption data. The estimated outdoor consumption could be compared with the simulated outdoor water demand, as described by the model. The parameters that formed part of the mathematical outdoor water demand model were formulated from data available for residential estates, where conditions such as types of vegetation, irrigated area and size of pool could be prescribed in a constitution, usually instituted by a home owners association. The data was derived from one estate located in the Western Cape Province of South Africa. The mathematical model was simulated using the Monte Carlo method and the @Risk software. Three residential estates located in South Africa were subsequently modelled. Additionally, the model was employed to estimate outdoor water demand for houses located in Northern America for verification purposes. The Monte Carlo simulations of the outdoor water demand model presented in this study yielded realistic results when compared with the proxy outdoor consumption figures as well as the metered actual outdoor water consumption data analysed. The peak monthly outdoor water demand estimation results were particularly close to the consumption data. This study serves as a baseline for further research into outdoor water demand. Research into the effects of water restriction and conservation potential could follow from this work, especially in today’s environmentally conscious society.
AFRIKAANSE OPSOMMING: Die buite waterverbruik van residensiëel eiendomme dra grootliks by tot die seisoenale fluktuasie van die algehele water verbruik van hierdie eiendomme. Die beraming van die dienooreenkomstige buite wateraanvraag kan waarde toevoeg vir eiendomsontwikkelaars and beplanners, indien dit ontwerpers kan instaat stel om water verspreindingsnetwerke te optimeer en te help met water hulpbron beplanning en wetlikke goedkeurings. Vir die doeleindes van hierdie studie is die buite waterverbruik komponente wiskundig gedefinieër en gekombineer om ‘n buite wateraanvraag model te ontwikkel. Ten einde die resultate van ‘n buite water aanvraag model op ‘n maandelikse tydskaal te evalueer, was dit nodig om ‘n benaderingsmetode te ontwikkel, gebaseer of die gemeterde maandelikse water verbruike gebruik. Die metode behels dat die data, verkry van ‘n bekende Noord-Amerikaanse water eindverbruikprojek, van die algmeen nie-seisoenale binneshuise water verbruik vergelyk word met die maandelikse winter water verbruik. Derhalwe kon die binneshuise waterverbruik wat op hierdie manier beraam is afgetrek word van die algehel maandelikse waterverbruik om die maandelikse buitewater verbruik te beraam. Die beraamde buitewater verbruik kon sodoende vergelyk kan word met ‘n gesimuleerde buite wateraanvraag soos beskryf deur die gesimuleerde model. Die parameters wat deel uitgemaak het van die wiskundige buite waterverbuik model was gedefinieër uit data wat beskikbaar was vir residensiële ontwikkelings, waar voorwaardes soos plantegroei, besproeiingsarea of swembad grote dikwels voorgeskryf kan word in ‘n grondwet ingestel deur ‘n huiseienaarsvereniging. Die data wat in hierdie model gebuik word is hoofsaaklik afskomstig van ‘n landgoed geleë in die Weskaap provinsie, Suid-Afrika. Die wiskundige model was gesimuleer met behulp van die Monte Carlo metode en die @Risk sagteware. Drie residensiële landgoede geleë in Suid-Afrika was daaropvolgend gemodelleer. Daarbenewens is die model gebruik die buite watergebruik van groepe huise geleë in Noord-Amerika te beraam vir verifikasie doeleindes. Die Monte Carlo simulasies van die buite water aanvraag model van hierdie studie het realistiese resultate in vergelyking met die beraamde buite verbruike sowel as die werklike gemeterde buite water verbruiksdata opgelewer. Die piek maandelikse buite water aanvraag beramings resultate was veral vergelykbaar met die piek maandeliks waterverbruik data. Hierdie studie dien as 'n basis vir verdere navorsing in buite waterverbruik. Navorsing gefokus op die gevolge van water beperkings en bewaring potensiaal kan as aanvullende voordele van hierdie studie ontstaan, veral in vandag se omgewingsbewuste samelewing.
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Eriksson, Eva Helena. "Potential and problems related to reuse of water in households /." Lyngby : Environment & Resources, Technical University of Denmark, DTU, 2002. http://www2.er.dtu.dk/publications/fulltext/2002/MR2002-142.pdf.
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McCarthy, Mary Morgan. "Consumptive Water Use: Refining State Water Supply Estimates with Discharge and Withdrawal Data." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/89928.
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Water scarcity has quickly become one of the most pressing issues in the 21st century. Knowledge of the stress consumption places on water supply is therefore necessary for improved resource management. This research leverages monthly facility level withdrawal and discharge data from two different sources to provide important observations of consumptive water use across several spatial scales and water use sectors in Virginia between 2010-2016. Consumptive water is defined as water which is withdrawn and not returned to a water resource system. Consumption was estimated on statewide, watershed, county, and facility levels. The agriculture/irrigation, aquaculture, commercial, industrial, energy, and municipal sectors were considered for analysis. Facilities were matched between the two data sources by narrowing potential matches by distance and then by facility name using an approximate string distance mechanism. This analysis revealed that inconsistent discharge reporting affects estimates of consumption through time and any errors at finer spatial scales are ultimately masked at coarser levels. Statewide energy consumption in Virginia was found to be between 4-20% considering all available data and 0.4-4% across matched facilities. Non-energy consumption was an estimated 37-51% considering all available data and only 28-33% across matched facilities. Inconsistent reporting of discharge made it difficult to determine if consumption trends truly exist in Virginia, but monthly consumption appears to be persistent through time and slightly increasing in non-energy sectors. Industrial consumption in Virginia was also found to be higher than literature values. Results from this study are beneficial for water supply modeling and planning by providing more refined estimates of the actual stress withdrawals place on water supply.This material is based upon work supported by the U.S. Geological Survey under Cooperative Agreement No. G17AC00322. The views and conclusions contained in this document are those of the author and should not be interpreted as representing the opinions or policies of the U.S. Geological Survey. Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.
Master of Science
Water scarcity has quickly become one of the most pressing issues in the 21st century. Improved water resource management is critical for sustainable development, especially in historically water-rich states that have not had an urgency to improve water planning. This research provides key information about the impact consumption has on water supply in Virginia, using water use data from two different sources between 2010-2016. Consumptive water is defined as water which is withdrawn and not returned to a water resource system. This includes losses through evaporation, transpiration, conveyance, and incorporation into products and animals. Consumption was estimated on statewide, watershed, county, and facility levels. It was also estimated for the agriculture/irrigation, aquaculture, commercial, industrial, energy, and municipal sectors. Facilities were matched across the two data sources by narrowing potential matches by distance and then by facility name. This study revealed that statewide energy consumption in Virginia is between 4-20% considering all available data and 0.4-4% across matched facilities. Non-energy consumption is then between 37- 51% considering all available data and only 28-33% across matched facilities. Inconsistent reporting of return flow data made it difficult to determine if consumption trends truly exist in Virginia, but consumption appears to be persistent through time and slightly increasing in non-energy sectors. Results also suggest that industrial consumption in Virginia may be higher than published literature values. This study ultimately introduces a feasible method for water managers to estimate consumption using data from multiple sources. Results from this approach are beneficial for predicting future water demand and long-term resource planning by providing more knowledge of the actual stress withdrawals place on water supply.
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DiCarlo, Morgan. "Statistically Evaluating Water Consumption Historically and Across Multiple Users in Virginia." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/95911.
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This study explores key aspects of water usage in Virginia via a broad-scale analysis of multiple water users through thirty years of time-series records from the Virginia Water Use Data System. A full spectrum of users is considered, including water used for energy, industrial, agricultural and municipal applications. The extent of the relationship between the volume of water used and drivers like economic and climatic conditions are not well defined in humid environments like Virginia. Mann-Kendall testing is applied to identify water use trends through time both statewide and at the county level. A panel regression is employed to identify relationships between water use and explanatory variables of climatic and economic conditions, both spatially and temporally. Key trends include that industrial and energy sector water withdrawals per facility are significantly decreasing over time. Water used for agricultural applications was found to increase on warmer than average years and decrease on wetter than average years, indicating the panel regression methodology successfully demonstrated and quantified intuitive trends. Interestingly, municipal and industrial water usage had a statistically significant relationship with the Gini coefficient, a measure of inequality in rainfall distribution, indicating intraseasonal variability may play an important role in water use trends that is not apparent using seasonal averages alone. Overall, this work contributes to the understanding of water use trends at the state level for Virginia, and better characterizes long-term trends and short-term variability in water withdrawal.MS
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Husain, Salman Y. Y. "A study of urban residential water consumption behaviour : the case of Kuwait." Thesis, University of Exeter, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302676.
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Kanyoka, Phillipa. "Water value and demand for multiple purposes in the rural areas of South Africa: the case of Ga-Sekororo." Pretoria : [s.n.], 2008. http://upetd.up.ac.za/thesis/available/etd-02102009-142257/.
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Capener, Paul Anthony Le-Provost. "Influencing water consumption at South Staffordshire Water PLC : a disaggregated behavioural analysis of contributory factors." Thesis, Aston University, 1992. http://publications.aston.ac.uk/10823/.
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This research identifies factors which influence the consumption of potable water supplied to customers' property. A complete spectrum of the customer base is examined including household, commercial and industrial properties. The research considers information from around the world, particularly demand management and tariff related projects from North America. A device termed the Flow Moderator was developed and proven, with extensive trials, to conserve water at a rate equivalent to 40 litres/property/day whilst maintaining standards-of-service considerably in excess of Regulatory requirements. A detailed appraisal of the Moderator underlines the costs and benefits available to the industry through deliberate application of even mild demand management. More radically the concept of a charging policy utilising the Moderator is developed and appraised. Advantages include the lower costs of conventional fixed-price charging systems coupled with the conservation and equitability aspects associated with metering. Explanatory models were developed linking consumption to a range of variables demonstrated that households served by a communal water service-pipe (known in the UK as a shared supply) are subject to associated restrictions equivalent to -180 litres/property/day. The research confirmed that occupancy levels were a significant predictive element for household, commercial and industrial customers. The occurrence of on-property leakage was also demonstrated to be a significant factor recorded as an event which offers considerable scope for demand management in its own right.
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Cataldi, Francesco. "Management Optimization of Energy Consumption Reduction for Residential Hot Water." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2995.
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The objective of this thesis is to create an automatic water management system capable of optimizing the usage of warm water stored in two water tanks to reduce the monthly energy consumption of the instant water heater installed in a residential house. This system is called Water Mixing System (WMS). The two heat sources considered are: PV-T system and heat rejected by the air condition system. The PV-T system is a new technology that allows transformation of the sun radiation into both electricity and warm water, increasing the efficiency of the panel compared to either a common photovoltaic panel or solar collector. The air-conditioning heat source, instead, recovers the heat rejected by the condenser to the environment by employing a heat exchanger that stores the heat collected in the water tank.
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Khastagir, Anirban, and anirban khastagir@rmit edu au. "Optimal use of rainwater tanks to minimize residential water consumption." RMIT University. Civil, Environmental and Chemical Engineering, 2008. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20081203.143250.
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Melbourne, the capital of Victoria Australia leads the world in having the highest quality drinking water. The Victorian State Government has set targets for reducing per capita water consumption by 15%, 25% and 30% by 2010, 2015 and 2020 respectively and has announced stringent water restrictions to curtail water demand. In this resource constraint environment it is opportune to look for alternative sources of water to supplement Melbourne's traditional water supply. In Melbourne, legislation has been changed to make it possible to use rainwater harvested from domestic tanks for non potable purposes. The annual rainfall in Melbourne's metropolitan area varies from 450mm in the West to 850mm in the East to over 1000mm in the North East mountain ranges. The objectives of the current study are to develop a methodology to estimate the optimal size of the rainwater tank at a particular location considering the local rainfall, roof area, demand for water and the reliability of supply (supply security) required; to quantify the rainwater volume that could be harvested at site using domestic rainwater tanks to minimise pressure on the potable water supply secured from traditional catchment sources until the desalination plant is commissioned in 2013; to analyse the efficacy of rainwater tanks to reduce the stormwater runoff and improve the quality of the stormwater that will otherwise flow into urban drains and to estimate the cost effectiveness ratio and payback period of inst alling rainwater tanks. A simple water balance model was developed to calculate the tank size based on daily rainfall, roof area and the expected demand. The concept of 'reliability' was introduced to measure supply security. Rainfall data from 20 rainfall stations scattered around Melbourne were used to determine the variation in the rainwater tank size dependent on the above stated parameters. It was observed that to achieve the same supply reliability (90%) and to meet a specific demand (toilet and garden use), the tank size required in the western side of Melbourne is as high as 7 times as that required in the north-east side. As a result, the
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Kunze, Isabelle Miriam. "The Social Construction of Bottled Water Consumption in New Zealand." The University of Waikato, 2008. http://hdl.handle.net/10289/2497.
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This thesis examines the ways in which bottled water consumption is socially constructed and associated with place, nature, gender and health. Consuming bottled water is related to ideas of both sustaining the environment and the body. I explore how performances of both the environment and consuming bodies constitute each other. Consumer performances in Hamilton and various visual and textual representations illustrate spatialities, socialities and subjectivities of bottled water consumption. Geographies of consumption and feminist geographies and methodologies provide the framework for my research. I conducted eleven semi-structured interviews on the Waikato University Campus in Hamilton with participants different in age, gender and ethnicity. Bottled water advertising in international and national lifestyle magazines and newspapers, as well as bottled water websites, are also examined through the lens of critical discourse analysis. The first part of this thesis focuses on bottled water consumption in regard to the environment and explores how the natural and pure image of bottled water is currently linked to notions of green and sustainable consumption. The second part examines the embodiment of the environment in regards to sustaining healthy, pregnant, sporty, sexed and 'green' bodies while looking at gender, health, and consumer performances and subjectivities. Linking bottled water consumption to the environment and the body not only enriches geographies of consumption but also emphasises the paradoxes associated with consuming bottled water.
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Fazackerley, Scott Ronald. "Reducing water consumption for residential turfgrass with adaptive irrigation controllers." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/25781.
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It has been estimated that 50-75% of residential water use is for irrigation. Current domestic systems are poor at adapting irrigation to meet demand, primarily due to incomplete information for system operators who rely either on visual inspection or periodic irrigation programs. This results in over-watering and fertilizer and soil leaching. This thesis describes a complete wireless sensor and irrigation control system that reduces water consumption for residential turfgrass irrigation. Presented is a proof-of-concept system that demonstrates potential benefits. The approach couples easy-to-deploy wireless soil moisture sensor nodes with an adaptive irrigation controller that waters to meet demand without user input. Watering events are dynamically scheduled in response to changes in soil water and adapt to unplanned additions and variable water flow. The adaptive irrigation controller was compared against a standard irrigation control program. Experimental results demonstrate significant water savings over using a preset watering program. Adaptive watering amounts are compared against actual crop water demand and found to meet the needs of the turfgrass without over-watering. The result is a system that requires less user intervention, lowers water consumption, and adapts to changing climatic conditions while maintaining a healthy turfgrass.
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Маценко, Олександр Михайлович, Александр Михайлович Маценко, and Oleksandr Mykhailovych Matsenko. "Incorporating of territorial - branch features for water consumption tariff policy." Thesis, Видавництво СумДУ, 2008. http://essuir.sumdu.edu.ua/handle/123456789/8303.
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The offered innovations will force enterprises to accept actions, concerning water-saving technologies involved in manufacture, for example to invest in law waste and cleaning technologies, i.e. the part of the profit will be economically convenient for directing the water-capacious enterprises on updating and replacement of water-purifying constructions and modernization and start water recycling. The effective system of tariff policy should have both direct and indirect influence on processes of the balanced production load on territory of our country.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/8303
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Lawgali, Fathia. "Economic aspects of population growth and water consumption in Libya." Thesis, Abertay University, 2009. https://rke.abertay.ac.uk/en/studentTheses/db1d8052-382b-490d-88b1-8377a5bb10f4.
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Large increases in water demand with very little recharge have strained Libya’s groundwater resources, resulting in serious declines in water levels and quality, especially along the Mediterranean coast where most of the agricultural, domestic and industrial activities are concentrated. To meet these increases, Libya turned to desalination as a supplementary water resource as early as 1964. Both thermal and membrane desalination technologies have been used. This study shows that the problem of water scarcity is likely to increase further in the future. This study has three aims: first, to estimate the historical relationship between population growth and the various uses of water; second, to forecast water consumption according to the various uses; third, to estimate the elasticities of water demand and examine the effect of price, income, population and temperature on water demand in Libya in the short and long-run. To achieve these aims, an econometric model of Libyan water demand is constructed and estimated for the period 1975-2005, using the Box-Jenkins approach to forecast water demand and the Engle-Granger two-step approach to estimate the short and long-run elasticities of water demand. As a result this study provides considerable information for policy makers concerning current and future Libyan water demand. By examining the relationships between population growth and the future consumption of water in Libya, it is possible to reach the following conclusions. • Population growth in Libya will be very high. • Population elasticities for water demand are elastic for agricultural, domestic and industrial purposes. Water demand for all purposes is extremely elastic. • Most of the population and agricultural lands are concentrated in the northern part of the country. • The Libyan economy depends heavily on underground water. • In Libya, as a whole, water demand will increase. Available water in 2020 will be less than half of water demands, implying an increase in the water scarcity problem over time. • The short and long-run price elasticties are negative, suggesting that there is an inverse relationship between water demands and price. Also, these elasticities indicate that water use is generally inelastic with respect to price. • The income elasticities are all positive in the short and long-run. This result accords with demand theory, implying that water is a normal good. • The estimation results suggest that, in the long-run, water demand for agricultural, domestic and industrial use is highly elastic for population and inelastic for price and income. • The short-run elasticities are less than the long-run elasticities, as economic theory suggests. Also, all elasticities in the short-run are less than one. This implies that water demand is inelastic in the short-run.
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Tong, Yindong, Xuejun Wang, Gengchong Zhen, Ying Li, Wei Zhang, and Wei He. "Agricultural Water Consumption Decreasing Nutrient Burden at Bohai Sea, China." Digital Commons @ East Tennessee State University, 2016. https://dc.etsu.edu/etsu-works/6.
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In this study, we discussed the impacts of human water consumption to the nutrient burden in a river estuary, and used Huanghe River as a case study. The agricultural water consumption from the Huanghe River has significantly decreased the natural water flows, and the amount of water consumption could be almost twice as high as the water entering into the estuary. According to our calculation, agricultural water usage decreased TN outflows by 6.5 x 104 Mg/year and TP outflows by 2.0 x 103 Mg/year. These account for 74% and 77% of the total output loads. It has been widely reported that the majority of the rivers in northern China were severely polluted by nutrients. Its implication on the budget of nutrient in the estuary ecosystem is not well characterized. Our study showed that the discharge of nutrients in the coast waters from polluted rivers was over concerned. Nutrients in the polluted rivers were transported back to the terrestrial systems when water was drawn for human water consumption. The magnitudes of changes in riverine nutrient discharges even exceed the water-sediment regulation trails in the Huanghe River. It has non-negligible impact on estimating the nutrient burden in costal water ecosystem.
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Wattanakuljarus, Voravit. "Estimating Residential Water Demand: a Case of Multiple-Part Tariff for Denton, Texas." Thesis, North Texas State University, 1986. https://digital.library.unt.edu/ark:/67531/metadc500792/.
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This paper analyzes the demand for water in case of a multiple-part tariff in Denton, Texas. The model used is developed from Billing & Agthe's model by using the following variables: marginal price, difference variable, tax assessed value, lot size, house size, temperature and rainfall.. The results indicate that temperature has the greatest effect on water demand, since this area is considered to be a very warm area. Also, marginal price seems to have a strong effect on water consumption indicating that customer is well-informed to a change in rate schedule. This test supports the original idea of the previous articles that the coefficient on difference variable and that on income should have the opposite sign. However, this test can not prove that those coefficients should be equal in magnitude, since the proxy of the income variable can not represent the individual monthly income. In addition, this article introduces another variable which can be a proxy of outdoor water use. That is lot size showing the effect on water demand. The last variable used in the model, house size,does not have much effect on water demand and is dropped out in the final model.
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McIntyre, Graham. "An analysis of water pricing and consumption variations within the occupied West Bank." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/221.
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International disputes over access to water resources can act as a catalyst for conflict or cooperation amongst nations. In the case of Israel and the occupied West Bank, water conflict further exacerbates preexisting political tension, and yet a peaceful and equitable solution between these countries could spark further negotiation.
Within this context, the Palestinian Hydrology Group conducted a water questionnaire amongst Palestinian households in the occupied West Bank in 2001. The aim of the PHG’s survey was to investigate which water management system would be the most suitable in terms of equity, cost-recovery, and long-term development of the resource. Ultimately the water pricing system that was recommended was an increasing block-tariff system, which prioritizes the delivery of necessary amounts of water used for basic needs amongst all users before further allocating water to other uses. However, most of the work conducted by the PHG was qualitative and based entirely on descriptive statistics. Analysis regarding the relationships between water pricing, water consumption, and water needs, and how these relationships change over different scales, was not present in the final report.
The purpose of this thesis to continue the research conducted by the PHG by analyzing the water questionnaire database as a means to further advise and direct water services within the occupied West Bank. In order to discern relationships between seasonal patterns of water pricing and consumption, an in-depth analysis of that data was conducted. In addition, perceived water needs were also examined. This analysis was performed at a variety of scales, including amongst districts, average monthly income levels, and connection/non-connection to a water network.
Results indicate that some districts in the occupied West Bank are comparatively under-serviced. The economically poor district of Jenin seems to be in greatest need of stabilized and equitable water resources, followed by Hebron, Nablus and Ramallah. It was also observed that those within lower income brackets bear a disproportionate share of pricing fluctuations and, not surprisingly, low consumption levels. Connection/non-connection to a water network indicates that not only is consumption amongst non-connected households significantly low, but also that the difference between perceived water needs and water consumption is much greater than amongst connected households. This thesis supports the PHG’s recommendation for an increasing block-tariff system, since regression analysis indicates inequitable distribution and pricing amongst districts and income levels.
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Weber, Christopher. "Operational Efficiency in the Food and Beverage Industry Through Sustainable Water Consumption." ScholarWorks, 2019. https://scholarworks.waldenu.edu/dissertations/6813.
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The scarcity of water poses a threat to domestic and global economic sustainability while inhibiting the operational efficiency of food and beverage industry firms. The purpose of this multiple case study was to explore the strategies some food and beverage industry leaders in the United States used for implementing sustainable water consumption practices to improve operational efficiency. The conceptual framework for the study was stakeholder theory. The primary data source was semistructured interviews with 4 food and beverage industry leaders in Wisconsin who have responsibility for implementing their firms' sustainability practices, and the secondary data source was corporate sustainability reports. Thematic analysis was used to analyze data, which resulted in 4 themes: efficient equipment, stakeholder and sustainability focus, water recycling, and supply chain support. The implications of this study for social change include the potential for leaders in the food and beverage industry to use findings to create more sustainable water supplies and demonstrate greater stewardship of the environment.
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Beccaria, Lisa Mara. "Parental and teacher influences on the consumption of plain drinking water by primary school aged children." University of Southern Queensland, Faculty of Sciences, 2007. http://eprints.usq.edu.au/archive/00004085/.
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[Abstract]: A rise in the rate of overweight and obesity in children coupled with an increasing availability and consumption of sweet drinks raises questions about the place or importance of plain water in a child’s overall nutritional intake. In terms of influencing a child’s nutritional behaviour, teachers and parents play a crucial role in educating, promoting and encouraging healthy behaviour whether that be in the home or school environment. Schools are seen to be an important setting for health promotion and as such, factors that promote healthy behaviour or barriers against it should be explored.The primary aims of this study were to 1) investigate parents’ and teachers’ beliefs about water consumption by children whilst at school 2) investigate how parents and teachers perceive themselves as role-models in relation to water consumption in children; and 3) investigate parents’ and teachers’ self-reported behaviour in relation to their promotion of water consumption. This qualitative study was based upon Social Learning Theory and used an exploratory qualitative descriptive design. Using Pender’s Health Promotion Model as a framework, data were collected from 9 participants in total (including 6 parents and 3 teachers). This included semi-structured interviews and a 24-hr Fluid Recall Form. Participants were from one regional primary state school.Thematic analysis was conducted from the data, and 9 major themes were identified. The results indicated that parents and teachers rated a high importance of their child / student drinking water. Parents and teachers were unsure as to how much water their child / student was drinking each day, nor how much was recommended for them to drink. Some parents and teachers were more active in encouraging and promoting water as a choice of drink, particularly in hotter weather or when children were active playing sport or doing Physical Education Classes. Parents and teachers reported a range of strategies that they used to encourage children to drink water and in the school setting, allowing children to have easy access to a water bottle in the classroom was seen as being positive. Some teachers were unsure what roles they could play in the school to promote water (if it was perceived as part of their role at all). In terms of perceptions of the current school water drinking facilities, many parents and teachers held negative views in terms of hygiene, location and maintenance.Establishing a habit of drinking plain water was expressed as a difficult task by some participants, citing problems with remembering and taste preferences. Results from the 24-hr Fluid Recall Form supported the fact that many parents drank only small amounts of plain water. Those parents and teachers who did drink more water participated in regular exercise, and therefore their higher water consumption may be as a result of this.A small number of parents made a connection between what fluids they consumed as a child and what they encourage their child to drink now. Some teachers hoped that by drinking water in front of children in the classroom that this might have a positive influence on the students.It was concluded that the issue of water consumption in children is worthy of further investigation. There may be opportunities within the school to adopt a ‘whole of school’ approach whereby parents, teachers, students and the broader community work towards establishing and sustaining an environment which continues to promote healthy water drinking behaviours.
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Talukder, Mohammad Radwanur Rahman. "Health Risks of Increasing Water Salinity and Water Consumption in Coastal Bangladesh Associated with Climate Change." Thesis, Griffith University, 2016. http://hdl.handle.net/10072/366027.
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Climate change and sea level rise will continue to exacerbate existing freshwater salinization and affect large populations in many low-lying countries of the world including in Bangladesh. While ample evidence, mainly based on food consumption, indicates high salt intake causes significant health problems (e.g. elevated blood pressure (BP), hypertension and cardiovascular diseases), the evidence for health effects of consuming highly saline water is limited. In coastal Bangladesh, with over 35 million inhabitants, projected climate change points toward further intensification of the exposure to high salinity in water and presents significant threats to population’s health. Furthermore, in order to better understand potential health risks and assist in developing future response options, data about the water supply situation and consumption is imperative. Such data are scarce. This research aimed firstly to examine the salt (sodium) exposure, and the association between high drinking water salinity and blood pressure (BP) in young adults in coastal Bangladesh. There is currently limited data available about BP on healthy young adults in Bangladesh, particularly from salinity affected coastal areas. Second, this research investigated existing water supply and water consumption in order to explore appropriate adaptation opportunities for actions and strategies.Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Griffith School of Environment
Science, Environment, Engineering and Technology
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Cheruseril, Jimmy Jose, and jimmy cheruseril@rmit edu au. "Determining an urban water consumption model based on socio-demographic factors." RMIT University. Mathematical and Geospatial Sciences, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080206.123148.
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Water is a limited and essential resource for living and its importance is understood by all. Water is a scarce resource in Australia. Many of the river basins in Australia cover only a small area and the rivers that drain them are seasonal in flow. Climate change coupled with increasing population and a growing economy has put stress on the existing water resources. In the period of drought between 2003 and 2005 the careful consumption of water was of high importance and there is a consequent need to develop new methods to use water wisely. The state and federal governments have initiated many campaigns over the past decade to reduce water consumption and conserve water. This thesis aims to identify the relationship between socio-demographic factors and water consumption using multivariate analysis techniques and geographic information systems (GIS). This thesis has examined the water consumption patterns of Metropolitan Melbourne on a postcode level during the period 2000-2005. It has investigated how these patterns have altered with time and examined whether or not these changes are geographically linked. The effectiveness of the advertising campaigns and educational programs undertaken during the study period by The Victorian Government and its impact on Melbourne's water usage has been evaluated. Moran's I statistic was performed using water consumption to find spatial autocorrelation among postcodes. Multivariate techniques of factor and regression analysis were used to develop a model based on socio-demographic predictors to estimate water consumption. The relationship between separate dwellings, business counts, distance from GPO, semi detached dwellings and academically less qualified residents has been identified in this study. The numbers of separate dwellings and businesses have a significant influence on water consumption. Water use and soci o-demographic data are visualised by the creation of thematic maps using GIS.
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Guevara-Lequay, L. V. "The stability and oxygen consumption of retinol at low water activity." Thesis, University of Leeds, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356425.
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Shah, Jignesh. "Water consumption for steam methane reforming hydrogen plants in Edmonton, Canada." Thesis, Villanova University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10116994.
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Traditional engineering and financial assessments are limited not only to consideration of currently internalized costs, but also often lack consideration of new or current externalities during the life of the new system. The goal of this thesis is to provide a methodology that integrates sustainability assessment with the traditional assessments, thereby allowing the assessment and optimization of the total overall costs. The proposed method is applied for the steam methane reforming (SMR) plants operated by Air Products in Edmonton, Canada where the boiler feed water for hydrogen manufacturing is produced using the polished effluent from the local municipal wastewater treatment plant. The softening of the feed water to Reverse Osmosis (RO) system is proposed (after evaluating the several options) to improve the recovery for the current RO system from 75% to 95%. The overall costs were estimated for comparison of the current and proposed systems.
The production of hydrogen via SMR highlights the complexities of the sustainability assessment. While hydrogen may be considered a renewable transportation fuel, depending on whether the fossil natural gas can be replaced with renewable biogas or via electrolysis of water using renewable energy, it is reliant on the availability of water. However, water is a scarce resource that is also essential for basic human survival and ecological needs. As the population of the world increases, alternative water sources need to be explored, which may require more energy in the processing of such water to potable grade.
The results show that the proposed RO feed softening via Ion Exchange (IX) can improve RO recovery up to 95%. The financial assessments based on literature prices and cost factors show that the current operating cost can be reduced up to ~20% by improving RO recovery to 95% with ~75% probability for cost reduction at 95% recovery. When the capital costs are accounted for, NPV-based analyses show that for 95% recovery more than 20% IRR (if spare vessels are available for refurbishment) could be achieved.
Environmental assessments (Life Cycle Assessment method using SimaPro v7.3 following ISO 14040-44 standards) show that 1.12 x 10-3 ReCiPe Endpoints impact for current RO operation at 75% recovery can be reduced by ~8% when 95% RO recovery is achieved via the proposed system. Due to the need for increased NaCl salt for regeneration of resins in the proposed system, the environmental impacts increased for metal depletion and ionizing radiation impact categories, unlike the other impact categories. The GHG emissions could be reduced by ~10% (after accounting for 10%-30% probability) for 95% RO recovery with the reduction from the reduced consumption of inputs. Similarly, the life cycle water depletion impacts can be reduced by ~10% (after accounting for 30%-65% reduction probability) from the current 1.75kg water depletion per kg of BFW produced. Water Footprint Assessment (WFA) as per the Ridoutt & Pfister method shows that when accounted for local water stress, during the worst month, the blue water footprint increases from 1.75kg/kg BFW to 63.9kg/kg BFW, in addition to ~0.08kg/kg BFW greywater footprint.
The social assessment shows mixed results with lower employment, employee development, corporate philanthropy, environmental "protect" spend and R&D spend due to reduced overall consumptions for the 95% recovery option. The other social impact categories were improved for 95% recovery. The overall cost (estimated as the sum of the internally normalized social costs) were 3.0 units with up to 35% reduction potential.
The results of the case study show that IX feed softening has potential to not only reduce the environmental and social costs, but also meet the financial constraints. Also, this highlights that an integrated sustainability assessment method that evaluates and combines all three aspects of sustainability - environment, social and economic - could be developed. The proposed method as presented needs further development. Among other things, the lack of availability of robust social inventory database significantly hinders the development and adoption such integrated methods. The application of the method to additional case studies would be a good next step.
This exercise has highlighted that the value and benefits of overall cost estimates are beyond those of policy making by the regulatory agencies. Sustainability minded companies could benefit from having environmental and social goals along with the financial targets as they understand the risks from inadequate performances in any of these aspects. However, these goals are typically on a gate-to-gate basis and independent of each other; thereby, creating the potential for shifting burdens in the value chain and not obtaining the full benefits of risk mitigation. The assessment using the overall cost approach at life cycle basis is essential for industry in not only risk mitigation, but also opportunity identification at an early stage.
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Dennis, Elizabeth Ann. "The Efficacy of Increased Water Consumption as a Weight Loss Strategy." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/37616.
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The population of older adults continues to grow in the US, as does the prevalence of overweight and obesity within this group. Several factors may contribute to age-related weight gain, such as a reduced energy expenditure and energy intake requirements, and a susceptibility to energy over-consumption. Serious consequences result from overweight and obesity, such as increased risk of chronic disease, decreased quality of life and increased healthcare costs. Thus, effective weight management strategies are needed which target this population. Reducing energy-containing beverage intake and increasing water intake are often suggested as strategies for weight loss, yet surprisingly little data exists to support the effectiveness of these strategies. Previous studies have shown that older adults consume fewer calories at a laboratory test meal following a water preload, but it is unknown whether this reduced energy intake can be sustained over time to produce weight loss. Epidemiological studies using self-reported dietary intake have shown that substituting water for energy-containing beverages decreases total energy intake, and that drinking > 1L of water is associated with greater weight loss in overweight women compared to overweight women who consumed < 1L daily. However, these studies were a secondary analysis of a trial comparing multiple weight loss strategies and increasing water consumption was not a primary outcome of interest. To directly address this issue, we hypothesized that increased water consumption would increase weight loss in healthy overweight and obese older adults in combination with a 12-week hypocaloric diet as compared to a hypocaloric diet alone. As hypothesized, older adults randomized to the increased water intake group demonstrated greater weight loss than those randomized to the diet alone group (7.4 kg vs. 5.5 kg, respectively). Because energy-containing beverages contribute to total energy intake without a concomitant reduction in food intake, substituting water or energy-free beverages for energy-containing beverages appears to be an effective weight management strategy for older adults.Ph. D.
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Bourne, Lesley Thelma. "A liquid consumption survey of individuals in greater Cape Town." Master's thesis, University of Cape Town, 1986. http://hdl.handle.net/11427/26569.
Full textAbstract:
There is no published data for the per capita consumption of water of individuals in South Africa. A daily rounded volume of 2 litres per person is usually taken as a working estimate from world wide data. As part of ongoing epidemiological studies into potential health effects of changes in the water supply to greater Town, water consumption patterns were ascertained. As health effects are often spatially ascribed to the place of residence of a person, it was necessary to ascertain how much water was drunk at home as well as away from home. Water consumed was divided into three classes: (i) water consumed from the tap, (ii) commercial beverages and (iii) water bound in food. A review of methods of conducting dietary surveys indicated that a 24-hour recall would be the most appropriate method. Two surveys on total dietary intake utilizing a 24-hour recall were carried out (n = 2 000 persons for each survey), one in winter and the ether in summer. The design of the survey involved a cluster sample of households that were representative of the socio-economic and demographic structure of greater Cape Town. Three pretested types questionnaires were administered by trained interviewers: (i) a placement questionnaire to describe the household composition, (ii) a recall questionnaire for individual adults and children and (iii) a recall questionnaire for babies. Particular attention was paid to the accurate ascertainment of the volumes of food and drink consumed as well as their preparation to facilitate accurate analysis. The water content of each food item was calculated by a computer program that utilized computerized food composition tables. The water consumption data was analyzed by sex, age, population group, income and the season of the year. Detailed graphs and tables are provided. Results were also standardized to the population of greater Cape Town. It was found that the difference in consumption between the White and "Coloured" population groups was greater than the difference between those people of high and low-income groups. The mean total water intake for Whites was 2.19 litres per day, while for "Coloureds" it was 1.26 litres per day. There is no obvious bias to account for this difference. The figures for protein consumed by the two groups, which was used as a control, are consistent with values reported in the literature. Summer consumption was higher than that during winter. The ratio of tap water consumed at home to total liquid consumed was approximately 0.5.
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Kharseh, Mohamad. "Reduction of prime energy consumption in the Middle East by GSHP systems." Licentiate thesis, Luleå, Luleå University of Technology, 2009. http://pure.ltu.se/ws/fbspretrieve/3014977.
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Nakao, Megumi. "Dynamic games and competition for water resources /." View online ; access limited to URI, 2003. http://0-wwwlib.umi.com.helin.uri.edu/dissertations/dlnow/3112122.
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Ławińska, K., and K. Kosińska. "Environmentally-friendly leather dressing technology accounting for a reduction in waste water salinity and process water consumption." Thesis, КНУТД, 2016. https://er.knutd.edu.ua/handle/123456789/5064.
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ZUCCHINELLI, MARIA. "ASSESSMENT OF WATER FOOTPRINT METHODOLOGIES TO EVALUATE THE IMPACTS OF FOOD PRODUCTION AND CONSUMPTION ON WATER RESOURCES." Doctoral thesis, Università Cattolica del Sacro Cuore, 2021. http://hdl.handle.net/10280/95713.
Full textAbstract:
La produzione globale di cibo provoca impatti sia sull’ ambiente che sulla salute umana. Tra le molteplici sfide che la comunità globale deve affrontare, le risorse di acqua dolce della Terra sono state identificate come pericolosamente soggette a una crescente pressione sia in termini quantitativi che qualitativi. Una profonda comprensione del nesso acqua-cibo è pertanto cruciale per lo sviluppo sostenibile.
Nella presente tesi è stato applicato il concetto di Water Footprint (WF) calcolata attraverso differenti metodologie – ovvero attraverso approcci di tipo volumetrico e per la quantificazione dei potenziali impatti – al fine di stimare gli impatti sul consumo di acqua conseguenti produzione e consumo di cibo. Per valutare diverse tecniche di produzione, sono state confrontate le prestazioni ambientali di due vigneti coltivati con metodi di agricoltura convenzionale e biologica. Inoltre, sono stati studiati gli impatti sulle risorse idriche in relazione a diversi scenari di consumo alimentare in Italia e Danimarca, per indagare come le scelte alimentari dei consumatori rappresentino una strategia di riduzione degli impatti sull’ acqua. Nel calcolo degli impatti ambientali, i risultati hanno evidenziato il ruolo chiave dell'origine dei prodotti alimentari consumati, insieme alla tipologia dei prodotti e la riduzione di sprechi alimentari.Global food production has increasingly affected both the environment and human health in substantial and remarkable ways. Among the many concerns global community has to face, Earth’s freshwater resources have been identified as dangerously subject to increasing pressure in the form of consumptive water use and pollution. A deep understanding of the water-food nexus is crucial to support the exploration of more suitable avenues for a sustainable development. In this work, the concept of water footprint (WF) presented by different methodologies – volumetric and impacts oriented approach – has been applied to link impacts on water consumption to the food production and consumption. With regard to the study of the production side, comparison of environmental performances of two vineyard where conventional and organic viticulture were applied, has been performed. Additionally, impacts on water resources related to different Italian and Danish dietary patterns have been investigated to understand the positive impacts that demand-side solutions can have. The studies highlighted that the origin of consumed foodstuffs played a key role in the calculation of local environmental impacts. Finally, the analysis showed that consumer’s choices could tackle environmental impact on water use by changing their consumption patterns, selecting less water-demanding products and reducing food waste.
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ZUCCHINELLI, MARIA. "ASSESSMENT OF WATER FOOTPRINT METHODOLOGIES TO EVALUATE THE IMPACTS OF FOOD PRODUCTION AND CONSUMPTION ON WATER RESOURCES." Doctoral thesis, Università Cattolica del Sacro Cuore, 2021. http://hdl.handle.net/10280/95713.
Full textAbstract:
La produzione globale di cibo provoca impatti sia sull’ ambiente che sulla salute umana. Tra le molteplici sfide che la comunità globale deve affrontare, le risorse di acqua dolce della Terra sono state identificate come pericolosamente soggette a una crescente pressione sia in termini quantitativi che qualitativi. Una profonda comprensione del nesso acqua-cibo è pertanto cruciale per lo sviluppo sostenibile.
Nella presente tesi è stato applicato il concetto di Water Footprint (WF) calcolata attraverso differenti metodologie – ovvero attraverso approcci di tipo volumetrico e per la quantificazione dei potenziali impatti – al fine di stimare gli impatti sul consumo di acqua conseguenti produzione e consumo di cibo. Per valutare diverse tecniche di produzione, sono state confrontate le prestazioni ambientali di due vigneti coltivati con metodi di agricoltura convenzionale e biologica. Inoltre, sono stati studiati gli impatti sulle risorse idriche in relazione a diversi scenari di consumo alimentare in Italia e Danimarca, per indagare come le scelte alimentari dei consumatori rappresentino una strategia di riduzione degli impatti sull’ acqua. Nel calcolo degli impatti ambientali, i risultati hanno evidenziato il ruolo chiave dell'origine dei prodotti alimentari consumati, insieme alla tipologia dei prodotti e la riduzione di sprechi alimentari.Global food production has increasingly affected both the environment and human health in substantial and remarkable ways. Among the many concerns global community has to face, Earth’s freshwater resources have been identified as dangerously subject to increasing pressure in the form of consumptive water use and pollution. A deep understanding of the water-food nexus is crucial to support the exploration of more suitable avenues for a sustainable development. In this work, the concept of water footprint (WF) presented by different methodologies – volumetric and impacts oriented approach – has been applied to link impacts on water consumption to the food production and consumption. With regard to the study of the production side, comparison of environmental performances of two vineyard where conventional and organic viticulture were applied, has been performed. Additionally, impacts on water resources related to different Italian and Danish dietary patterns have been investigated to understand the positive impacts that demand-side solutions can have. The studies highlighted that the origin of consumed foodstuffs played a key role in the calculation of local environmental impacts. Finally, the analysis showed that consumer’s choices could tackle environmental impact on water use by changing their consumption patterns, selecting less water-demanding products and reducing food waste.
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Jeong, Seung Hyo. "The Impact of Water-Energy Feedback on Water Conservation at Residence Halls." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23729.
Full textAbstract:
Demand for potable water and energy is increasing with growing populations and economies and many fear that scarcity of such resources will become a significant worldwide problem in the future. As such, promoting water and energy conservation in residential building environments has become an important focal area for research. Providing feedback of water or energy consumption to residential building occupants has been demonstrated to be effective in promoting water and energy conservation separately. However, although water and energy are inexorably connected, we lack research that investigates the bridge between water and energy in the representation of feedback to promote water conservation. In this paper, we describe a study that was designed to investigate the impact of two different representations of water consumption feedback on water conservation. Water consumption was represented to consumers in one of two different ways: 1) gallons and 2) gallons along with the estimated embodied energy of water consumption. The study was conducted in 18 residential halls at Virginia Tech and lasted approximately six weeks. The outcome of the study suggests that representing water consumption in terms of gallons together with the embodied energy associated with water consumption can lead to a statistically significant reduction in water conservation while representing water consumption only in terms of gallons may not. This has significant implications for future water feedback designed to promote water conservation and the study indicates that non-monetary approach can be taken.Master of Science
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Shek, Lok Lun. "Oxygen consumption rate of copepod fecal pellets : variations among copepod species, prey types and prey nutritional values /." View abstract or full-text, 2010. http://library.ust.hk/cgi/db/thesis.pl?ENVR%202010%20SHEK.
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