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Letteratura scientifica selezionata sul tema "Water resources development – Case studies"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 1 febbraio 2022

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Articoli di riviste sul tema "Water resources development – Case studies"

1

Watkins, David. "Case for Case Studies in Water Resources Planning and Management Education". Journal of Water Resources Planning and Management 133, n. 2 (marzo 2007): 93–94. http://dx.doi.org/10.1061/(asce)0733-9496(2007)133:2(93).

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2

Nwankwoala, H. O. "Case Studies on Coastal Wetlands and Water Resources in Nigeria". European Journal of Sustainable Development 1, n. 2 (1 giugno 2012): 113. http://dx.doi.org/10.14207/ejsd.2012.v1n2p113.

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Wetlands play a very important role in the sustenance of both the surface andgroundwater resources of the country. It is sad to observe that the country is fast losingher wetlands, as the rich wetlands are being seriously threatened by a number ofanthropogenic and biophysical factors. Some of the notable human actions includepopulation pressure, rapid urbanization, mining, oil and industrial waste pollution,overgrazing, logging, dam construction, transportation routes and other physicalinfrastructure. Others factors are uncontrolled tilling for crop production andunprecedented/unregulated land reclamation. Subsidence, saltwater intrusion, sandstorm, desertification and droughts, invasion by alien floral and faunal species as well asmarine and coastal erosion are natural threats to wetlands in Nigeria. Wetlandsdestruction affects negatively water supply and water resources management. This studyexamines in great detail the fate of wetlands in the face of climate change andrecommends that efforts should be made to accurately document the country’s wetland.The paper therefore suggested sustainable options for wetlands and water resourcesmanagement in Nigeria. This, the paper opined, can be done through the strengtheningof wetlands preservation and conservation regulation, mitigating the effects of climatechange as well as the development of deliberate restoration programmes and policiesaimed at sustaining degraded wetlands in Nigeria.

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3

ROSENZWEIG, C., K. STRZEPEK, D. MAJOR, A. IGLESIAS, D. YATES, A. MCCLUSKEY e D. HILLEL. "Water resources for agriculture in a changing climate: international case studies". Global Environmental Change Part A 14, n. 4 (dicembre 2004): 345–60. http://dx.doi.org/10.1016/s0959-3780(04)00062-7.

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4

Rosenzweig, Cynthia, Kenneth M. Strzepek, David C. Major, Ana Iglesias, David N. Yates, Alyssa McCluskey e Daniel Hillel. "Water resources for agriculture in a changing climate: international case studies". Global Environmental Change 14, n. 4 (dicembre 2004): 345–60. http://dx.doi.org/10.1016/j.gloenvcha.2004.09.003.

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5

Guo, Yiru, Yan Hu, Ke Shi e Yuriy Bilan. "Valuation of Water Resource Green Efficiency Based on SBM–TOBIT Panel Model: Case Study from Henan Province, China". Sustainability 12, n. 17 (26 agosto 2020): 6944. http://dx.doi.org/10.3390/su12176944.

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With progress in China’s industrialization and urbanization, the contradiction of social and economic development with water resource supply–demand and water environmental pollution becomes increasingly prominent. To cope with the dual constraints of resource shortage and environmental regulations, the concept of water resource green efficiency that considers economic, environmental, and ecological factors is highly involved to promote sustainable economic development. The theoretical and practice circle devote to scientific green efficiency assessment of water resources and effective recognition of relevant influencing factors. However, to an extent they neglect social benefits brought by sustainable development and possible influences of industrial restructuring on green efficiency. They also lack concern on green efficiency of water resources in inland arid areas. To offset the disadvantages of existing studies, the philosophy of sustainable development was integrated into the input–output assessment system of green efficiency of water resources, and an assessment model was constructed using the SBM–Tobit (slack-based measure and Tobit) method. Moreover, a case study based on Henan Province, China was carried out. The green efficiencies of water resources in 18 cities of Henan Province during 2011–2018 were calculated. The operation mechanism of relevant influencing factors was discussed, and the methods to improve green efficiency of water resources were determined. Results reveal that the sustainable green efficiency of water resources in Henan Province increased in fluctuation during 2011–2018. The mean green efficiency increased from 0.425 in 2011 to 0.498 in 2018. At present, green efficiency of water resources in Henan Province remains at a low level, with a mean of 0.504. Reducing water consumption intensity and increasing investment to water environmental pollution technologies can promote green efficiency of water resources significantly. Conclusions provide a new method for scientific measurement and green efficiency assessment of water resources in inland arid areas.

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6

Jelev, Viorica. "NATURAL RESOURCES AND SUSTAINABLE DEVELOPMENT IN A MOUNTAIN ECONOMY". Annals of Spiru Haret University. Economic Series 18, n. 4 (18 dicembre 2018): 75–93. http://dx.doi.org/10.26458/1845.

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This paper presents the existing situation at national and world level considering the available water resources, their vulnerability especially in the mountains areas, the impact of climate changes, the possible conflicts regarding the intensification of water shortage in some regions of the world. I also present a case study on forests in Romania. Beginning with the general data mentioned above, we point out the specific peculiarities of the mountain area hydrology for identifying some aspects which are specific to the mountain water relationship. The analysis is necessary as no specifications regarding the mountain hilly or plain areas are done in the activity regarding waters management. Waters are managed unitary on river basins considering some general principles, unanimously recognized, well reflected into the national and international regulations. As a first stage, traditional economic activities are identified in the relationship of the mountain areas inhabitants with water but also some present approaches. The way the mountain areas inhabitants knew how to live together and capitalize water resources represents a model and impulse for coming back to such sustainable solutions but capitalizing the advantages of modern technologies. Each of these activities referring to waters which take place in the mountains area can represent ways for the research activity and future thorough studies from the technical, economic, social, cultural-traditional point of view and also for environment protection. A main preoccupation might have connection with the evolution of agricultural activities in the mountains area considering the climate changes and a possible “migration” towards higher areas of some agricultural practices specific to lower areas. The paper also shows a small example of the regaining by the locals of a community of an important resource for their lives in the hands of corporations: the forests defaced by HOLZINDUSTRIE SCHWEIGHOFER and stop flooding villages.

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7

Chen, Hua Long, Yu Liu, Xian Zheng Gong, Li Wei Hao, Bo Xue Sun e Xiao Qing Li. "A Review on Water Footprint Research of Materials Industry". Materials Science Forum 993 (maggio 2020): 404–13. http://dx.doi.org/10.4028/www.scientific.net/msf.993.404.

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The scarcity of water resource has become one of major issues that constrain economic development and urbanization process in China. The water footprint is a comprehensive indicator used to measure water consumption and pollution that is widely used in global or regional studies. The previous practices showed that water footprint analysis was an effective tool to achieve sustainable utilization of water resources by guiding the development of water-saving technology and product. This paper reviewed the progress of water footprint research in materials industry including related theory, method and application. Firstly, the basic concept of water footprint was introduced. Secondly, the current accounting and assessment methods of water footprint and their applicable fields were summarized. Thirdly, the case studies on the water footprint of metallic materials, nonmetallic materials and chemical materials were reviewed to analyze its guidance significance on the sustainable development of water resources. At last, some suggestions for future research on the water footprint of materials were proposed.

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8

Apostolaki, Stella, Ebun Akinsete, Stella Tsani, Phoebe Koundouri, Nikittas Pittis e Eleftherios Levantis. "Assessing the Effectiveness of the WFD as a Tool to Address Different Levels of Water Scarcity Based on Two Case Studies of the Mediterranean Region". Water 11, n. 4 (21 aprile 2019): 840. http://dx.doi.org/10.3390/w11040840.

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Despite being a natural phenomenon, water scarcity is, to a great extent, human-induced, particularly affected by climate change and by the increased water resources vulnerability. The Water Framework Directive (WFD), an ‘umbrella’ directive that aims to provide holistic approaches to the management of water resources and is supported by a number of Communication documents on water scarcity, requires for prompt responses to ensure ‘healthy’ water bodies of good ecological status. The current paper presents a multidisciplinary approach, developed and engaged within the Globaqua Project, to provide an assessment of the main challenges towards addressing water scarcity with emphasis on the climate change projections, in two Mediterranean regions. The current paper attempts to critically assess the effectiveness of the WFD as a tool to address water scarcity and increase sustainability in resource use. Criticism lies on the fact that the WFD does not directly refer to it, still, water scarcity is recognized as a factor that increases stress on water resources and deteriorates their status. In addition, the Program of Measures (PoMs) within the WFD clearly contribute to reducing vulnerability of water resources and to ensure current and future water use, also under the impact of the projected climate change.

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9

Viles, Elisabeth, Javier Santos, Tamara Fernández Arévalo, Martín Tanco e Florencia Kalemkerian. "A New Mindset for Circular Economy Strategies: Case Studies of Circularity in the Use of Water". Sustainability 12, n. 22 (23 novembre 2020): 9781. http://dx.doi.org/10.3390/su12229781.

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In a circular economy (CE) environment, it is important to make good and efficient use of resources and consider that the waste generated in production processes can be a valuable resource. However, the tools and methodologies conventionally used to analyze and evaluate production systems are based on techniques focused on linear production management models, where the primary purpose is to reduce the treatment and management of waste as much as possible and where productive and environmental efficiency are not evaluated simultaneously. Changing the paradigm from a linear to a circular economy requires that a new strategy for production systems be defined, one that makes production processes simultaneously circular and efficient (in terms of quality and productivity). In this context, a holistic vision is needed when implementing CE strategies. Therefore, the main aim of this paper is to provide evidence, through two real case studies in the use of water, that the management of this resource without considering systemic thinking may not be the most circular solution. Main results showed that improvements based on the traditional approach of reducing resource use cannot provide the best results if they are supported only by current process consumption without considering the circularity of resources.

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10

Villegas Quiceno, Adriana Patricia, Victor Hugo Aristizabal Tique, Oscar Felipe Arbelaez Pérez, Ramón Fernado Colmenares Quintero e Francisco Javier Vélez Hoyos. "Development of riverine hydrokinetic energy systems in Colombia and other world regions: a review of case studies". DYNA 88, n. 217 (22 maggio 2021): 256–64. http://dx.doi.org/10.15446/dyna.v88n217.93098.

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At a global level, hydrokinetic power has been considered as a renewable energy source, and it has become an attractive alternative for the rural electrification of non-interconnected areas with the presence of water resources. Aspects such as the low rural electrification rate, the increase in energy demand, the decrease in fossil reserves and the climate change, are some of the factors that have driven the use of this technology for the electricity production. The aim of this work is to give a review of the hydrokinetic energy potential of water resources, the requirements and impacts of the implementation of hydrokinetic technology in different countries, and the current development in the Colombian case. At present, it can be observed that the implementation of this technology in different regions of the world, especially in Colombia, has several challenges and barriers, including gaps in knowledge, information and data, such as well as limitations of water resources and infrastructure, finally, impacting on a low adoption of this technology. On the other hand, publications on studies of implementation and potential of hydrokinetic technology have been increasing over time, indicating that this topic has been gaining interest despite the challenges.

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Più fonti

Tesi sul tema "Water resources development – Case studies"

1

Neary, Daniel G., Peter F. Ffolliott e Gerald J. Gottfried. "Post-Wildfire Peakflows in Arizona Montane Forests: Some Case Studies". Arizona-Nevada Academy of Science, 2003. http://hdl.handle.net/10150/296603.

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2

MacDonald, Kit. "CASE STUDIES IN STREAM AND WATERSHED RESTORATION (URBAN, AGRICULTURAL, FOREST AND FISH HABITAT IMPROVEMENT)". Arizona-Nevada Academy of Science, 2015. http://hdl.handle.net/10150/621701.

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Stream and watershed restoration projects have become increasingly common throughout the U.S., and the need for systematic post-project monitoring and assessment is apparent. This study describes three stream and watershed ecological restoration projects and the monitoring and evaluation methods employed or planned to evaluate project successes or failures. The stream and watershed restoration and evaluation methods described in this paper may be applicable to projects of similar types and scales. Rivers and streams serve a variety of purposes, including water supply, wildlife habitat, energy generation, transportation and recreational opportunities. Streams are dynamic, complex systems that not only include the active channel, but also adjacent floodplains and riparian vegetation along their margins. A natural stream system remains stable while transporting varying amounts of streamflow and sediment produced in its watershed, maintaining a state of “dynamic equilibrium.” (Strahler 1957, Hack 1960). When in-stream flow, floodplain morphology, sediment characteristics, or riparian vegetation are altered, this can affect the dynamic equilibrium that exists among these stream features, causing unstable stream and floodplain conditions. This can cause the stream to adjust to a new equilibrium state. This shift may occur over a long time and result in significant changes to water quality and stream habitat. Land-use changes in a watershed, stream channelization, installation of culverts, removal or alteration of streambank vegetation, water impoundments and other activities can dramatically alter ecological balance. As a result, large adjustments in channel morphology, such as excessive bank erosion and/or channel incision, can occur. A new equilibrium may eventually be reached, but not before the associated aquatic and terrestrial environment are severely impaired. Stream restoration is the re-establishment of the general structure, function and self-sustaining characteristics of stream systems that existed prior to disturbance (Doll et al. 2003). It is a holistic approach that requires an understanding of all physical and biological processes in the stream system and its watershed. Restoration can include a broad range of activities, such as the removal or discontinuation of watershed disturbances that are contributing to stream instability; installation of control structures; planting of riparian vegetation to improve streambank stability and provide habitat; and the redesign of unstable or degraded streams into properly functioning channels and associated floodplains. Kauffman et al. (1997) define ecological restoration as the reestablishment of physical, chemical and biological processes and associated linkages which have been damaged by human actions.

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3

Wu, Huijuan. "Integrated river sustainability assessment : case studies of the Yellow River and the Ganges". Thesis, University of Oxford, 2014. https://ora.ox.ac.uk/objects/uuid:27804774-c7a3-4086-9746-349f54a65713.

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This thesis develops and validates a comprehensive methodology for measuring sustainability of a large river basin by using a tailored indicator set. The concept of river sustainability concerns not only the ecological condition of the river course, but also socioeconomic activities in the river basin. River sustainability is defined from five perspectives: sufficient resource, resilience to water-related risks, access to water supply and other services, productive use of water, and fairness between different users and generations. The Process Analysis Method (PAM) is employed as the guideline for developing sustainability assessment framework. As a participatory approach, PAM engages stakeholders to identify emerging issues and impacts on sustainability. Through a systematic process, a tailored indicator set is selected and categorized under three domains, namely, environmental performance, social wellbeing, and economic development. Two case studies have been undertaken, examining the underlying sustainability of the Lower Yellow River basin (LYR) and Upper Ganges River basin (UGR). Extensive fieldwork was carried out in China and India, in order to conduct stakeholder interviews and to collect multivariate data. 18 indicators are selected for LYR and 12 for UGR. The LYR assessment is conducted over the period from 1950 to 2010, whilst UGR features a 10-year period from 2001 to 2010. By processing raw hydrological data and socio-economic statistics, a normalized score is calculated for each indicator in a given year, the value ranging between 0 and 1, where 0 represents poor performance and 1 refers to a fully sustainable status. The results show that, although social wellbeing and economic status for LYR have progressively improved since 1950, environmental quality declined in the latter half of 20th century, with the lowest point in 1997 when extreme drought occurred. The Yellow River Conservancy Commission (YRCC), the government authority responsible for the LYR, implemented measures to improve the river health by multifunctional infrastructure projects and water allocation regulation. This effort proved to be effective as the general sustainability performance subsequently improved. The UGR study also identifies the trade-off between environmental capital and socioeconomic capital. With vast expansion of hydropower projects and new settlement in flood-prone areas, communities along the UGR are increasingly vulnerable to extreme events. However, the Ganges river basin authority lacks the capacity for integrated planning which would enable projects like flood defence schemes to be undertaken in a proper framework. It is likely that the environmental performance of the UGR will continue to decline, particularly with increasing uncertainty in climate, as the UGR basin management is not improving resilience sufficiently. By performing this comparative analysis, it has been shown that integrated river basin management should incorporate institutional capacity, stakeholder engagement, resilience and transparency. This research also contributes to underpinning policies for Integrated River Basin Management (IRBM). The assessment provides policy-makers and river managers with a holistic view of the river basin; the framework can be used to track progress towards sustainable development and identify priorities for multi-criteria decision-making.

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4

Noetzel, Lacy D. "Creation care and holistic mission Christian responsibility for the care of water resources /". Online full text .pdf document, available to Fuller patrons only, 2003. http://www.tren.com.

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Mbatha, Cyril. "Using aspects of game theory for enhanced stakeholder participation perspectives in integrated water resource management: a Kat River Valley case study". Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1002705.

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South Africa is a water poor region and yet, like in many other developing countries, water resources are a valuable production input in socially important industries such as agriculture and mining (Nieuwoudt et al., 2004:162-182). With a mean annual rainfall and runoff of 502mm and 42mm (420m³ per hectare per annum) respectively, Briers and Powell (1993:1) speculate that water shortages will limit South Africa’s economic development in the twenty-first century. In response to the challenges of water resource scarcity and socio-economic inequalities, in 1997 the South African Department of Water Affairs and Forestry (DWAF), following international trends, formulated a National Water Policy (NWP) based on Integrated Water Resource Management (IWRM) principles (Palmer et al., 2003). The main objectives of the NWP (1997) are to protect national water resources from degradation, provide economically disadvantaged communities with access to water resources and promote economic development, through the devolution of water management responsibilities to locally established water institutions (NWP, 1997). The pursuit of these objectives requires a thorough investigation of biophysical, sociopolitical and economic characteristics of the demarcated water areas. For such an investigation to provide accurate and locally relevant results, broad stakeholder participation is of paramount importance. The thesis discusses economic measures required in pursuing enhanced stakeholder participation levels at local levels. A socio-economic survey investigation describing major participation trends against reported property rights and Willingness to Pay values was conducted in the Kat River Valley, Eastern Cape province. From the investigation, observed participation trends driven by economic interests were identified and used in recommendations proposed for the policy implementation process. Using game theoretic arguments as guidelines in soliciting cooperative behaviour in the use and consumption of common resources (Ostrom, 1990), the thesis proposes the introduction of water related public works projects as employment creating vehicles for individuals and communities targeted for economic empowerment and participation in the water policy. However, for sustainable stakeholder participation levels, it is argued that the employment positions created through the projects need to be designed in a manner that would encourage an evolution of long-term relationships between stakeholders and the water management institutions.

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Meissner, Richard. "The transnational role and involvement of interest groups in water politics : a comparative analysis of selected Southern African case studies". Thesis, Pretoria : [s.n.], 2004. http://upetd.up.ac.za/thesis/available/etd-09072005-122600.

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7

Xu, Wenwei. "Development of a Steady-State River Hydrodynamic and Temperature Model Based on CE-QUAL-W2". PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/1619.

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CE-QUAL-W2 is a 2-D hydrodynamic and water quality model that has been applied to reservoirs, lakes, river systems, and estuaries throughout the world. However, when this model is applied for shallow systems, this model requires a long calculation time to maintain numerical stability, compared to applications of reservoirs or deeper river systems. To solve this problem, a new hydrodynamic and temperature model was built based on the framework of CE-QUAL-W2 but that allows for steady-state hydrodynamic computations. By calculating the hydrodynamics at steady-state, the time step for stability is relaxed and simulations can proceed at much higher time steps. The rest of the model framework is still used for water quality state variables, in this case, temperature. The algorithm used for computing the water surface elevation is Manning's equation. This thesis study is one part of the Willamette Water 2100 project (Santelmann et al., 2012), which examines hydrological, ecological, and human factors affecting water scarcity in the Willamette River Basin. This study included three stages: (1) Convert six existing CE-QUAL-W2 V3.1 models into a newer version: CE-QUAL-W2 V3.7. (2) Develop the steady-state model code in FORTRAN. (3) Test the steady-state model on three river systems in the Willamette River Basin at Year 2001 and 2002. The result proved that the steady-state model could reduce the computing time by 90% for river applications, while predicting dynamic river temperature with high accuracy at a two-minute time scale. This new model will be employed to simulate the future of the Willamette River System at a decadal or centennial timescales, addressing river temperature concerns and fish habitat issues.

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8

Isaacs, Akeda. "Evaluation of the use of resource kits in professional development in science teaching". Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/1548.

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Thesis (MEd (Curriculum Studies))--University of Stellenbosch, 2009.
The research was done in a period of curriculum transformation and reform in South Africa, a period during which teachers attended many interventions by service providers other than the education department to sharpen their skills. In this study, I investigate teacher professional development and professional development programmes using two case studies, MTN-SUNSTEP (Mobile Telecommunications Network – Stellenbosch University Schools Technology in Electronics Programme) and SWAP (Schools Water Project). These INSET programmes were intended to assist with the improvement of science teaching in terms of the new curricula suggested for the country. The study proceeds by way of two case studies within an interpretive paradigm. The purpose of the study is to evaluate the two programmes based on the criteria developed through a literature review and to understand and give meaning to the process of teacher professional development that might have occurred in the programmes. This process is framed by my research question, “can resource kits enable professional development in science teaching”. Data was collected at various stages by way of field notes, questionnaires, interviews and observations at workshops. Teachers generally found the processes useful but do indicate dissatisfaction with certain areas of the programmes. Issues that emerged from the study were that teacher development processes need to be organized over a long period, the development of teacher networks needs to be nurtured, and support at school level was essential to ensure implementation. An important insight was that the research, once again, emphasized a key aspect of effective teacher development programmes. Effective programmes require a team consisting of three agents that bring their own expertise to the process namely, teachers, district officials and university staff. This team has to take into account the factors that ensure effective teacher professional development and should occur within the parameters of accepted professional development practices and learning support materials play an important role in supporting this process.

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Stenekes, Nyree Civil &amp Environmental Engineering Faculty of Engineering UNSW. "Sustainability and participation in the governing of water use: the case of water recycling". Awarded by:University of New South Wales. School of Civil and Environmental Engineering, 2006. http://handle.unsw.edu.au/1959.4/28292.

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Urban water recycling has been promoted as one of several ways that water use efficiency could be improved in Australia???s cities, but few such schemes have been introduced. Many urban water-recycling schemes have been proposed, but often, these projects have been rejected because of community opposition. These difficulties suggest that recycling water is not just about having the right answer to any problem, but about the way in which the question is addressed. It is concerned with how practice is institutionalised; not just the rule making, but also the understandings and values that make the rule-making possible. In this thesis, the question of how the system of water governance could be strengthened to encourage sustainable water use through water recycling is examined. An analysis of experiences in three Australian case studies is conducted, in which recycled water was proposed for sustainability, to illuminate the way in which water use is institutionalised. Particular attention is given to the construction of meaning in relation to water use, by considering how water problems are framed and negotiated by different stakeholders and groups and the significance of the multiplicity of interpretive frameworks in use for the institutionalisation of practice. The analysis draws on institutional organisational theory and interpretive methods, which regard interpretation as one element (cognitive) in the stabilisation of social practice and closely linked to organisation (regulative) and values (normative). The study findings suggest meaning was a very important part of institutional change. Participants tended to construct policy issues as they became involved by drawing on different interpretive frameworks embodying different values and expectations. These interpretations reflected the organisational structuring of practice, such that the position/role in the organisational field reflected an actor???s interpretation of problems and/or solutions. Outcomes of the study suggest that institutionalising change in water management is problematic and depends on changes in the regulative, normative and cognitive dimensions of practice, as part of a continuous feedback loop between interpretation and practice. This view of change contrasts with existing research, which tends to see the problem in terms of influencing attitudes of specific groups and assumes preferences precede the action.

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Kralj, Martina <1981&gt. "Effects of Resources Exploitation on Water Quality: case studies in Salt Water Intrusion and Acid Mine Drainage". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4812/.

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Throughout the world, pressures on water resources are increasing, mainly as a result of human activity. Because of their accessibility, groundwater and surface water are the most used reservoirs. The evaluation of the water quality requires the identification of the interconnections among the water reservoirs, natural landscape features, human activities and aquatic health. This study focuses on the estimation of the water pollution linked to two different environmental issues: salt water intrusion and acid mine drainage related to the exploitation of natural resources. Effects of salt water intrusion occurring in the shallow aquifer north of Ravenna (Italy) was analysed through the study of ion- exchange occurring in the area and its variance throughout the year, applying a depth-specific sampling method. In the study area were identified ion exchange, calcite and dolomite precipitation, and gypsum dissolution and sulphate reduction as the main processes controlling the groundwater composition. High concentrations of arsenic detected only at specific depth indicate its connexion with the organic matter. Acid mine drainage effects related to the tin extraction in the Bolivian Altiplano was studied, on water and sediment matrix. Water contamination results strictly dependent on the seasonal variation, on pH and redox conditions. During the dry season the strong evaporation and scarce water flow lead to low pH values, high concentrations of heavy metals in surface waters and precipitation of secondary minerals along the river, which could be released in oxidizing conditions as demonstrated through the sequential extraction analysis. The increase of the water flow during the wet season lead to an increase of pH values and a decrease in heavy metal concentrations, due to dilution effect and, as e.g. for the iron, to precipitation.

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Più fonti

Libri sul tema "Water resources development – Case studies"

1

Nair, K. N. Water resources of Kerala: Issues and case studies. Thiruvananthapuram: Kerala Research Programme on Local Level Development, Centre for Development Studies, 2005.

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2

Kivelä, Merja. Women and water technology: The case of the Finnish water project in Tanzania. Helsinki, Finland: University of Helsinki, Institute of Development Studies, 1985.

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Choudhury, Pranab R. Water conflicts in Odisha: A compendium of case studies. Pune: Forum for Policy Dialogue on Water Conflicts in India, 2012.

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4

National Workshop on "Water Conflicts in the North East: Issues, Cases and Way Forward" (2010 Gauhati, India). Water conflicts in Northeast India: A compendium of case studies. Pune: Forum for Policy Dialogue on Water Conflicts in India, 2013.

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5

Water resources management in Latin America and the Caribbean. Boulder: Westview Press, 1990.

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6

Tvedt, Terje. Om vannprosjekter og interessekonflikter i utviklingslandene: To historiske eksempler. Bergen: Chr. Michelsens institutt DERAP (Forsknings- og aksjonsprogrammet for utviklingsland), 1987.

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7

Connick, Sarah. The Sacramento Area Water Forum: A case study. [Berkeley, Calif.]: University of California at Berkeley, Institute of Urban and Regional Development, 2006.

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8

Anderson, George, Jamie Pittock, Daniel Connell e Dustin Garrick. Federal rivers: Managing water in multi-layered political systems. Cheltenham: Edward Elgar, 2014.

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9

Vaswani, Ramesh M. Micro-watershed development: Three success stories from Maharashtra. Pune: Yeshwantrao Chavan Academy of Development Administration, 1995.

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Vaswani, Ramesh M. Micro-watershed development: Three success stories from Maharashtra. Pune: Yeshwantrao Chavan Academy of Development Administration, 1995.

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Capitoli di libri sul tema "Water resources development – Case studies"

1

Morales-Torres, Adrian, Ignacio Escuder-Bueno e Jessica Castillo-Rodríguez. "International Case Studies on Using Risk-Informed Dam Safety Management". In Water Resources Development and Management, 633–42. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-1971-0_62.

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Sinha, S. K. "Integrated River Basin Planning and Development — Some Case Studies". In Water Resources Planning and Management, 3–15. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-0395-4_1.

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Niemes, Horst, e Mario Schirmer. "Case Studies Guiding the Integration of Water Infrastructure". In Entropy, Water and Resources, 105–29. Heidelberg: Physica-Verlag HD, 2010. http://dx.doi.org/10.1007/978-3-7908-2416-2_7.

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Wang, Yahua. "Water Rights and Water Market: Case Study in Contemporary China". In Water Resources Development and Management, 177–204. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5083-1_7.

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Paiva, Rodrigo C. D., Walter Collischonn, Edith Beatriz C. Schettini, Jean-Philippe Vidal, Frédéric Hendrickx e Ana Lopez. "The Case Studies". In Modelling the Impact of Climate Change on Water Resources, 136–82. Chichester, UK: John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9781444324921.ch6.

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Jansen, L. "Sediment Management Strategies – Case Study on Hydropower Reservoirs in Malaysia". In Water Resources Development and Management, 417–30. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-1971-0_42.

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Isparan, Kamini, Lariyah Mohd Sidek, Hidayah Basri, Kah Hoong e Rashid Rafzi. "Short Review on Some Estimation of Probable Maximum Precipitation Studies". In Water Resources Development and Management, 197–203. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-1971-0_20.

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Roshidi, Affan Nasruddin bin, Mohamad Saiful Mansor, Aisah Md Shukor e Shukor Md Nor. "Recovery of Bird Assemblages After Construction; Case Study in Puah Catchment, Hulu Terengganu". In Water Resources Development and Management, 431–37. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-1971-0_43.

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Watkins, David W. "Assessing Educational Benefits of Case Studies". In Water Resources Systems Analysis through Case Studies, 127–34. Reston, VA: American Society of Civil Engineers, 2013. http://dx.doi.org/10.1061/9780784412879.ch12.

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Strzepek, Kenneth M., e Zdzislaw Kaczmarek. "Introduction to Case Studies". In Water Resources Management in the Face of Climatic/Hydrologic Uncertainties, 197–201. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0207-7_7.

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Atti di convegni sul tema "Water resources development – Case studies"

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Struck, Scott D., Steve Carter, Jamie Brescol, Dan Christian, Carol L. Hufnagel e Youn Sim. "Applying Low Impact Development Practices to Meet Multiple Objectives: Case Studies". In World Environmental and Water Resources Congress 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41173(414)63.

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Nazarov, R., P. Zalama, M. Hernandez e C. Rivas. "Integrated Asset Modeling in Mature Offshore Fields: Challenges and Successes". In SPE Energy Resources Conference. SPE, 2014. http://dx.doi.org/10.2118/spe-169923-ms.

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Abstract Production management in mature fields is a very challenging task which involves a multidisciplinary technical approach to minimize the decline rate and extend the life of the asset/field. Most of the time Integrated Asset Modeling (IAM) techniques are applied to green fields with main objectives of identifying the “bottlenecks” or to forecast production with different development cases. In the case of mature fields it is mostly considered as an optional study with less analytical value due to low operating surface pressures, already existing facilities, known well performance and studied reservoir geology. Nevertheless the processing of the reservoir, production and operational data in mature assets through one integrated workflow facilitates field management overall, thereby helping in the estimation of the remaining reserves and indicating real opportunities for optimization not seen by initial engineering scenarios. Additionally, IAM should be incorporated before getting to EOR studies. This paper describes the applied reservoir engineering workflow and integrated production model for the TSP fields (Teak, Samaan and Poui) located in the South East of Trinidad. TSP fields are jointly owned by by Repsol (70%), Petrotrin (15%) and NGC (15%) and are operated by Repsol. Current production of TSP is 13, 500 bopd. The oil produced from these fields is generally light oil, with an average range of 25-40 API and a solution GOR 200-1400scf/stb. Gas lift is the artificial lift system used in 95% of the wells. Average water cut is around 85%. Interaction of Production Engineering, Subsurface, Drilling, HSE, Facilities, and Maintenance departments is the key aspect to sustain the efficient operability of the TSP fields and operate at peak performance in spite of ageing installations, flow assurance problems and depleted reservoirs. The implementation of Operated Asset Structure in TSP in 2013 reinforced the cooperation between departments to achieve the main goals: minimum production deferrals, production optimization, screening of new opportunities and reserves, process improvement, facilities maintenance and effective logistics. Additionally, the Integrated Asset Modeling has been incorporated as part of the engineering surveillance which includes 3 fields, 100 wells, gas lift injection network, gas compressors, water treatment plant, etc. Real data from different sources and platforms, such as pressure temperature sensors, daily measured well parameters, reported operational figures, monthly welltests and screened remaining reserves are jointly transferred to the integrated model, built in commercial software (GAP/RESOLVE), bringing the field data processing and production management to the state-of-the-art level. Gas lift volume availability and system pressure, performed rigless intervention jobs (including recompletion of new zones), change of the fluid composition in certain wells, reconfiguration of facilities are timely reflected in the TSP integrated model. Based on the sensitivity runs and output results immediate actions are taken to comply with the production target.

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Smith, Amanda D., Olufemi A. Omitaomu e Jaron J. Peck. "Modeling the Impacts of Solar Distributed Generation on U. S. Water Resources". In ASME 2015 Power Conference collocated with the ASME 2015 9th International Conference on Energy Sustainability, the ASME 2015 13th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2015 Nuclear Forum. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/power2015-49618.

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Distributed electric power generation technologies typically use little or no water per unit of electrical energy produced; in particular, renewable energy sources such as solar PV systems do not require cooling systems and present an opportunity to reduce water usage for power generation. Within the US, the fuel mix used for power generation varies regionally, and certain areas use more water for power generation than others. The need to reduce water usage for power generation is even more urgent in view of climate change uncertainties. In this paper, we present an example case within the state of Tennessee, one of the top four states in water consumption for power generation and one of the states with little or no potential for developing centralized renewable energy generations. The potential for developing PV generation within Knox County, Tennessee, is studied, along with the potential for reducing water withdrawal and consumption within the Tennessee Valley stream region. Electric power generation plants in the region are quantified for their electricity production and expected water withdrawal and consumption over one year, where electrical generation data is provided over one year and water usage is modeled based on the cooling system(s) in use. Potential solar PV electrical production is modeled based on LiDAR data and weather data for the same year. Our proposed methodology can be summarized as follows: First, the potential solar generation is compared against the local grid demand. Next, electrical generation reductions are specified that would result in a given reduction in water withdrawal and a given reduction in water consumption, and compared with the current water withdrawal and consumption rates for the existing fuel mix. The increase in solar PV development that would produce an equivalent amount of power, is determined. In this way, we consider how targeted local actions may affect the larger stream region through thoughtful energy development. This model can be applied to other regions, other types of distributed generation, and used as a framework for modeling alternative growth scenarios in power production capacity in addition to modeling adjustments to existing capacity.

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Pribyl, Barbara, Satinder Purewal e Harikrishnan Tulsidas. "Development of the Petroleum Resource Specifications and Guidelines PRSG – A Petroleum Classification System for the Energy Transition". In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/205847-ms.

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Abstract The Petroleum Working Group (PWG) of the United Nations Economic Commission for Europe (UNECE) has developed the Petroleum Resource Specifications and Guidelines (PRSG) to facilitate the application of the United Nations Framework Classification for Resources (UNFC) for evaluating and classifying petroleum projects. The UNFC was developed by the Expert Group on Resource Management (EGRM) and covers all resource sectors such as minerals, petroleum, renewable energy, nuclear resources, injection projects, anthropogenic resources and groundwater. It has a unique three- dimensional structure to describe environmental, social and economic viability (E-axis), technical feasibility and maturity (F-axis) and degree of confidence in the resource estimates (G-axis). The UNFC is fully aligned to holistic and sustainable resource management called for by the 2030 Agenda for Sustainable Development (2030 Agenda). UNFC can be used by governments for integrated energy planning, companies for developing business models and the investors in decision making. Internationally, all classification systems and their application continue to evolve to incorporate the latest technical understanding and usage and societal, government and regulatory expectations. The PRSG incorporates key elements from current global petroleum classification systems. Furthermore, it provides a forward-thinking approach to including aspects of integrity and ethics. It expands on the unique differentiator of the UNFC to integrate social and environmental issues in the project evaluation. Several case studies have been carried out (in China, Kuwait, Mexico, Russia, and Uganda) using UNFC. Specifically, PRSG assists in identifying critical social and environmental issues to support their resolution and development sustainably. These issues may be unique to the country, location and projects and mapped using a risk matrix. This may support the development of a road map to resolve potential impediments to project sanction. The release of the PRSG comes at a time of global economic volatility on a national and international level due to the ongoing impact and management of COVID-19, petroleum supply and demand uncertainty and competing national and international interests. Sustainable energy is not only required for industries but for all other social development. It is essential for private sector development, productive capacity building and expansion of trade. It has strong linkages to climate action, health, education, water, food security and woman empowerment. Moreover, enduring complex system considerations in balancing the energy trilemma of reliable supply, affordability, equity, and social and environmental responsibility remain. These overarching conditions make it even more essential to ensure projects are evaluated in a competent, ethical and transparent manner. While considering all the risks, it is also critical to reinforce the positive contribution a natural resource utilization project provides to society. Such an inquiry can focus on how the project contributes to the quality of life, environment, and the economy – the people, planet, and prosperity triad. Such an approach allows consistent, robust and sustainable investment decision making and energy policy development.

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Islam, Md, F. Banat, A. Baba e S. Abuyahya. "Design and Development of a Small Multistage Flash Desalination System Using Aspen HYSYS". In ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/ajkfluids2019-4975.

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Abstract Fresh water demands are increasing day by day because of growing population, industrialization, and increased living standards. Desalination technology has become a significant solution of fresh drinking water for many parts of the world. Lack of fresh water resources in dry environments has encouraged the establishment of desalination processes and developed technology to compensate for water scarcity. The MSF (multistage flash) desalination technique has received wide spread acceptance due to low temperature heat source (waste heat/inexpensive energy), simple construction high process reliability and simple maintenance. MSF typically has the highest water production cost among available desalination technologies, which can be reduced with using solar energy/co-generation. Since Abu Dhabi is in the solar belt region and is blessed with huge solar energy, MSF desalination can be powered by solar power in addition to industrial waste/fossil fuel energy, which will significantly reduce the cost as well as carbon, footprint. In this research, multistage flash desalination is modelled using ASPEN HYSYS package V8. We have designed each components of the system, mostly heating source, vacuum/flash chambers, heat exchangers and developed the whole system. Some parametric study, i.e. feed rate, top brine temperature, heat input, pressure, productivity etc. of multistage flash desalination system has been conducted in this research. Two case studies have been conducted and found a relation between feed flow rate and water production rate as well as chamber pressure with vapor formation. This design will help to build the pilot plant, do experimental test and validate the model.

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Gregory, Mike, Bill Walker, Seung Yi, Brett Cunningham e Jesper Kjelds. "Case Studies in Automated Floodplain Mapping". In World Water and Environmental Resources Congress 2001. Reston, VA: American Society of Civil Engineers, 2001. http://dx.doi.org/10.1061/40569(2001)424.

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Allison, Edith. "United States Experience Regulating Unconventional Oil and Gas Development". In SPE/AAPG Africa Energy and Technology Conference. SPE, 2016. http://dx.doi.org/10.2118/afrc-2573582-ms.

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ABSTRACT In the midst of aggressive anti-drilling campaigns by environmental organizations and well-publicized complaints by citizens unaccustomed to oil and gas operations, rigorous studies of unconventional oil and gas development show that there are no widespread or systemic impacts on drinking water resources in the United States. In addition, air pollution and greenhouse gas emissions have significantly declined with the growth in natural gas production and its use in power generation. Furthermore, induced seismicity from subsurface waste disposal has plummeted in response to industry initiatives and new regulations. This record of environmental protection reflects the fact that U.S. hydraulic fracturing, like other oil and gas operations, is highly regulated by the states. In addition, air emissions, operations on federal lands, and subsurface injection are subject to federal regulation. Academic and government researchers have documented that chemicals and gas produced by hydraulic fracturing are not contaminating drinking water. However, as an added complication, methane occurs naturally in drinking water aquifers in some producing areas. In 2015, the U.S. Environmental Protection Agency (EPA) completed a four-year study of potential aquifer contamination from hydraulic fracturing and associated industry operations. The report found some impacts on drinking water including contamination of drinking water wells; however, the number of cases was small compared to the number of wells hydraulically fractured. The scientific peer-review and public critique of the study, which continues after more than a year, may recommend additional research. The emotionally charged, anti-fracking campaigns provided important lessons to U.S. operators: pre-drilling, baseline data on water and air quality are essential to answering public concerns; infrastructure issues such as increased truck traffic on small, local roads are important to residents; and the initial failure to disclose the composition of hydraulic fracturing fluid intensified public concern.

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Du, Pengfei, e Di Wei. "Water Resources Management of Ancient Chinese Cities: Case Studies". In World Environmental and Water Resources Congress 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41173(414)299.

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Hotchkiss, Rollin H., Paul M. Boyd, John Shelley e Stanford Gibson. "Reservoir Sediment Management: Case Studies from the United States". In World Environmental and Water Resources Congress 2018. Reston, VA: American Society of Civil Engineers, 2018. http://dx.doi.org/10.1061/9780784481424.035.

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Li, Xiaoning, Junqi Li, Xing Fang, Yongwei Gong e Wenliang Wang. "Case Studies of the Sponge City Program in China". In World Environmental and Water Resources Congress 2016. Reston, VA: American Society of Civil Engineers, 2016. http://dx.doi.org/10.1061/9780784479858.031.

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Rapporti di organizzazioni sul tema "Water resources development – Case studies"

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Al-Zubaidi, Hussein. 3D Hydrodynamic, Temperature, and Water Quality Numerical Model for Surface Waterbodies: Development, Verification, and Field Case Studies. Portland State University Library, gennaio 2000. http://dx.doi.org/10.15760/etd.6384.

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Saillant, Eric, Jason Lemus e James Franks. Culture of Lobotes surinamensis (Tripletail). Mississippi Department of Marine Resources, gennaio 2014. http://dx.doi.org/10.18785/ose.001.

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The Tripletail, Lobotes surinamensis, is a pelagic fish found in tropical and sub-tropical waters of all oceans. Tripletails are often associated with floating debris and make frequent incursions in bays and estuaries where they are targeted by recreational fishermen. In Mississippi waters the species is typically present during the late spring and summer season that also correspond to the period of sexual maturation and spawning (Brown-Peterson and Franks 2001). Tripletail is appreciated as a gamefish but is also prized for its flesh of superior quality. The fast growth rate of juveniles in captivity documented by Franks et al. (2001) and the excellent quality of Tripletail flesh both contribute to the potential of this species for marine aquaculture. In addition, the production of cultured juveniles would be precious to develop a better understanding of the biology, early life history and habitat use of Tripletail larvae and juveniles, a topic largely undocumented to date, through experimental releases and controlled studies. The culture of tripletail thus supports the Tidelands Trust Fund Program through improved conservation of natural resources, potential enhancement of fisheries productivity and potential development of a new economic activity on the Gulf coast producing tripletail via aquaculture. The Objective of this project was to initiate development of methods and techniques needed to spawn captive held tripletail broodfish and raise their offspring to evaluate their growth and development in captivity. In this report we will present the results of studies aiming to develop methods and protocols for captive spawning of tripletail and the first data obtained on the early development of tripletail larvae. A major issue that was encountered with tripletail broodstock development during the project lied in the difficulties associated with identifying the sex of adults caught in the wild and candidates for being incorporated in mating sets for spawning. This issue was addressed during the course of the project by examining the potential of a non-lethal method of hormonal sexing. The results of these preliminary investigations are presented in the third part of this report. All protocols used in the project were determined with the guidance of the Institutional Animal Care and Use Committee (IACUC) of the University of Southern Mississippi (USM IACUC protocol number 10100108).

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Baker, Justin S., George Van Houtven, Yongxia Cai, Fekadu Moreda, Chris Wade, Candise Henry, Jennifer Hoponick Redmon e A. J. Kondash. A Hydro-Economic Methodology for the Food-Energy-Water Nexus: Valuation and Optimization of Water Resources. RTI Press, maggio 2021. http://dx.doi.org/10.3768/rtipress.2021.mr.0044.2105.

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Growing global water stress caused by the combined effects of growing populations, increasing economic development, and climate change elevates the importance of managing and allocating water resources in ways that are economically efficient and that account for interdependencies between food production, energy generation, and water networks—often referred to as the “food-energy-water (FEW) nexus.” To support these objectives, this report outlines a replicable hydro-economic methodology for assessing the value of water resources in alternative uses across the FEW nexus–including for agriculture, energy production, and human consumption—and maximizing the benefits of these resources through optimization analysis. The report’s goal is to define the core elements of an integrated systems-based modeling approach that is generalizable, flexible, and geographically portable for a range of FEW nexus applications. The report includes a detailed conceptual framework for assessing the economic value of water across the FEW nexus and a modeling framework that explicitly represents the connections and feedbacks between hydrologic systems (e.g., river and stream networks) and economic systems (e.g., food and energy production). The modeling components are described with examples from existing studies and applications. The report concludes with a discussion of current limitations and potential extensions of the hydro-economic methodology.

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Candrilli, Sean D., e Samantha Kurosky. The Response to and Cost of Meningococcal Disease Outbreaks in University Campus Settings: A Case Study in Oregon, United States. RTI Press, ottobre 2019. http://dx.doi.org/10.3768/rtipress.2019.rr.0034.1910.

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Invasive meningococcal disease (IMD) is a contagious bacterial infection that can occur sporadically in healthy individuals. Symptoms are typically similar to other common diseases, which can result in delayed diagnosis and treatment until patients are critically ill. In the United States, IMD outbreaks are rare and unpredictable. During an outbreak, rapidly marshalling the personnel and monetary resources to respond is paramount to controlling disease spread. If a community lacks necessary resources for a quick and efficient outbreak response, the resulting economic cost can be overwhelming. We developed a conceptual framework of activities implemented by universities, health departments, and community partners when responding to university-based IMD outbreaks. Next, cost data collected from public sources and interviews were applied to the conceptual framework to estimate the economic cost, both direct and indirect, of a university-based IMD outbreak. We used data from two recent university outbreaks in Oregon as case studies. Findings indicate a university-based IMD outbreak response relies on coordination between health care providers/insurers, university staff, media, government, and volunteers, along with many other community members. The estimated economic cost was $12.3 million, inclusive of the cost of vaccines ($7.35 million). Much of the total cost was attributable to wrongful death and indirect costs (e.g., productivity loss resulting from death). Understanding the breadth of activities and the economic cost of such a response may inform budgeting for future outbreak preparedness and development of alternative strategies to prevent and/or control IMD.

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