Dissertationen: „Water resources development“

1

Hale, Angela. „Community management of water resources in the southern region, Adelaide /“. Title page, table of contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09ENV/09envh161.pdf.

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2

Gelt, Joe, und Marv Waterstone. „Water Resources Research Center Serves the Arizona Water Community“. Arizona-Nevada Academy of Science, 1988. http://hdl.handle.net/10150/296416.

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From the Proceedings of the 1988 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 16, 1988, University of Arizona, Tucson, Arizona

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3

Shahjahan, Mosharefa. „Integrated management of water resources in Bangladesh /“. Title page, table of contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09ENV/09envs525.pdf.

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4

Mahmoud, Mohammed. „Scenario Development for Water Resources Decision-making“. Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/193925.

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With ever-increasing pressures on limited water supplies in arid regions, water managers are forced to make critical decisions about the management of water resources - sometimes under considerable uncertainty. Given the large number of stresses on existing water systems, proper management requires the consideration of all different factors that may contribute to water use and consumption. As water management becomes more focused on the issue of sustainability, processes traditionally thought of as non-water-related and irrelevant to water management are now becoming very pertinent. In particular, the consequences of changes in climate, population, land use, and various types of water usage (agricultural, environmental, domestic, and urban) are of considerable interest.With increasing uncertainty about the future, conventional methods of decision-analysis are increasingly unable to suitably quantify the future impacts of policy decisions, and they are also unable to provide a clear contrast between impacts of historical policy decisions and possible future management decisions. An analytical approach that is sensitive to qualitative effects of water-related decision-making will therefore be more useful towards improving management practices. Scenario development is one such tool that can be used to examine future implications of water management, and thereby shed light on the potential consequences of implementing different operational and institutional policies. The objective of this work is to propose a formal scenario development methodology applicable to water resources management issues. This framework is applied and evaluated on a regional scale for the U.S. southwest and on a local scale for the state of Arizona.The research presented here is comprised of several components; (i) a review of existing literature on scenarios, scenario studies, and scenario applications; (ii) a retrospective analysis of water management-related scenario applications that examines the implications of scenario-influenced strategies previously implemented in Arizona, (iii) the adoption of a formal scenario development approach for water resource issues within the arid and semi-arid regions of the U.S., utilizing an example application in the Upper San Pedro Basin in southern Arizona, and (iv) a comprehensive application of the scenario development process to the Verde River Watershed in northern Arizona through a simplified small-scale scenario case study approach.

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5

Stålgren, Patrik. „Worlds of water : worlds apart ; how targeted domestic actors transform international regimes /“. Göteborg : Dep. of Political Science, Göteborg Univ, 2006. http://www.gbv.de/dms/sub-hamburg/511069995.pdf.

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6

Geng, Guoting. „Development of approaches to integrated water resources management“. Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/3984.

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There is a growing need to manage water resources in a sustainable way, particularly in semi arid areas, with dramatic social and economic development as well as rapid population growth. Optimising water allocation in a river basin is an important aspect ensuring equitable and efficient water use. This research develops an optimisation approach (the Integrated Water Resource Optimisation model, IWRO) to optimise the conjunctive use of surface water and groundwater resources in a sustainable manner. The IWRO model is comprised of a surface water optimisation model (SWO) and the Tsinghua groundwater optimisation (TGO) model. These models employ Genetic Algorithms (GAs) to optimise water allocation. Application of a surface water optimisation (SWO) model incorporating a GA is demonstrated initially for a simple test case, through which the GA approach was validated against known solutions. Sensitivity analysis of different operators and parameters related to GAs was also carried out. The validated SWO model was then applied to a more complex system, the Shiyang River Basin in Gansu Province in China, to maximise equitable surface water supplies. On the groundwater side, the GA approach was applied with the existing Tsinghua groundwater model to optimise groundwater supplies with sustainability considerations. The results were compared with those from an existing model (the WEAP model), indicating that the IWRO model is capable of satisfying the objectives of equitable water allocation and groundwater sustainability set for it. In the context of Integrated Water Resources Management (IWRM), account must be taken of a wide range of social and environmental issues. Different scenarios were therefore designed for the Shiyang River Basin management. Various criteria in terms of economic, social, environment and water security were also indentified for further multi-criterion decision making analysis.

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7

Ffolliott, Peter F., Leonard F. DeBano, Lori A. Strazdas, Malchus B. Jr Baker und Gerald J. Gottfried. „Hydrology and Water Resources: A Changing Emphasis?“ Arizona-Nevada Academy of Science, 1997. http://hdl.handle.net/10150/296488.

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8

Martinez, V., und M. Alvaro. „Integrated water resources management (IWRM) for sustainable development“. Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45276.

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Water is an essential resource for sustainable development, however it is not often taken into account. In order to find effective and lasting solutions to the problems related to water resources, it is required a new form of governance and management paradigm. This new paradigm is included into the concept of Integrated Water Resources Management (IWRM), which has been defined by Global Water Partnership GWP , as "a process which promotes the coordinated management and development of water, land and related resources, in order to maximize the resultant economic and social welfare in an equitable manner without compromising the sustainability of ecosystems".

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9

Yao, Huaming. „New control concepts for uncertain water resources systems“. Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/20239.

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10

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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11

Evans, Lauren G. „Minimizing the Effects of Cement Slurry Bleed-Water on Water Quality Samples“. Arizona-Nevada Academy of Science, 1987. http://hdl.handle.net/10150/296377.

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From the Proceedings of the 1987 Meetings of the Arizona Section - American Water Resources Association, Hydrology Section - Arizona-Nevada Academy of Science and the Arizona Hydrological Society - April 18, 1987, Northern Arizona University, Flagstaff, Arizona
Some groundwater monitor wells produce water quality samples with anomalously high pH measurements. In some of these wells it is obvious that these water quality samples are affected by the bleed-water from the cement used to seal the annuli. To gain an understanding as to why cement bleed -water occurs and how it can be controlled, literature from both the cement and petroleum industries are reviewed. Cement is a very alkaline material. When too much water is used to prepare the slurry, alkaline bleed -water can drain through or along the cement sheath surrounding the casing. This results in an increase in the pH measurements of groundwater samples. This bleed-water can separate from the cement in-three ways: it can move into the formation during cementing, it can accumulate within the cement forming pockets and channels behind the casing, and it can remain within the interconnected capillaries that exist throughout the cement sheath. The drainage of alkaline bleed -water from the cement can be greatly reduced by controlling the amount of water used in the preparation of the slurry. The amount of water added can be monitored during well construction by measuring the slurry density. By implementing this quality control procedure during well construction along with specifying the correct amount of mix-water for the slurry, the elevated pH levels in groundwater samples should be greatly reduced if not completely eliminated.

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12

Neary, Daniel G. „Effects of Fire on Water Resources - A Review“. Arizona-Nevada Academy of Science, 1995. http://hdl.handle.net/10150/296457.

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From the Proceedings of the 1995 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 22, 1995, Northern Arizona University, Flagstaff, Arizona

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13

Goldenetz, Jolie A. „Southwest Gardens: Matching Plants with Available Water Resources“. Arizona-Nevada Academy of Science, 2007. http://hdl.handle.net/10150/296683.

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14

Boubeka, Jacques. „An institutional model of water resources administration in Congo“. Thesis, The University of Arizona, 1996. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_etd_hy0059_m_sip1_w.pdf&type=application/pdf.

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15

Nava, Alejandro Flores. „Water resources and freshwater aquaculture development of Yucatan, Mexico“. Thesis, University of Stirling, 1990. http://hdl.handle.net/1893/17762.

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The suitability of aquaculture for inland water bodies in the State of Yucatan, a karstic area of southeast Mexico was investigated. Five types of water bodies distinct in morphometric and hydrological characteristics were identified through land-based surveys. Representative sites for each were selected for further study: a sinkhole, a permanent aguada (clogged sinkhole), a rain-filled seasonal pond, a small <1 ha) gravel quarry and a large (>9 ha) gravel quarry. The water quality in all of the sites had a high pH (range 7.2-9.4) alkalinity (range 130-840 mg/l CaC03) and hardness (range 198-998mg CaC03). Their nutrient status varied from the permanently stratified and hypereutrophic conditions in the permanent aguada, to oligotrophic conditions in gravel quarries. In general, the water quality resulted adequate for fish culture in the gravel quarries, the sinkhole and in the seasonal pond, but ecological considerations prevented sinkholes for aquaculture development. Aquaculture trials involving the stocking of fry of the native cichlid Cichlasoma urophthalmus and O. niloticus in seasonal ponds and a small gravel quarry demonstrated the feasibility of neglected water bodies for small-scale aquaculture. A net yield of 180 Kg/ha/6 months was obtained from a gravel quarry fertilised with grass Panicum virgatum and stocked with C. urophthalmus. Yields from seasonal ponds were 157Kg/ha of O. niloticus from a small (0.010 ha), and 30 kg/ha of C. urophthalmus from a large (1.11 ha) seasonal pond (no fertilisation or feeding. An environmental impact assessment was carried out at an experimental cage site in gravel quarry. An estimated 0.02 kg of phosphorus was wasted per kg fish produced. A socioeconomic survey on attitudes towards aquaculture adoption was carried out in four agricultural villages and a fishing port. This led to the construction and operation of a small pond demonstration unit. Results suggest that farmers are receptive and adoption of aquaculture as a complementary activity may be feasible and beneficial to rural development, especially in areas with existing water bodies. Economic modelling of the different production units involved showed returns to labour higher than the average agricultural wage. A computer-based Geographical Information System identified areas suitable for aquacultural development. Two major areas were identified: the northern Karst plains where gravel quarries are abundant and suitable for intensive cage-culture; and the southern hilly region where small-scale seasonal aquaculture could be developed.

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16

Bagour, Mohammed H., und Donald F. Post. „Predicting the Volumetric Water Content of Irrigated Arizona Soils at Different Soil Water Potentials“. Arizona-Nevada Academy of Science, 2001. http://hdl.handle.net/10150/296584.

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17

Regil, Phil. „The Phoenix Water Resource Plan - 1987“. Arizona-Nevada Academy of Science, 1988. http://hdl.handle.net/10150/296415.

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From the Proceedings of the 1988 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 16, 1988, University of Arizona, Tucson, Arizona
The Phoenix Water Resource Plan-1987 is the official water resource plan for the City of Phoenix, Arizona. It covers the areas of supply, demand management and supply augmentation. The plan also addresses the issue of drought management.

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18

Olson, Steven L. „A Planning Process for Water Supply Development“. Arizona-Nevada Academy of Science, 1989. http://hdl.handle.net/10150/296428.

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From the Proceedings of the 1989 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 15, 1989, University of Nevada, Las Vegas, Nevada
Arizona's Groundwater Management Act has changed the perspective that water providers must use when planning to meet growing water demands. The goal of safe-yield in the Active Management Areas and the requirements of both the Second Management Plan and the Assured Water Supply provisions will require all water providers to consider other options besides additional groundwater development when expanding their water supply plans. A simplified process will be presented that stresses the need for well thought-out, cost-effective water resource planning to meet management requirements for both public and private water providers. The process relies on an initial projection of water demand, an analysis of demand reduction potential, an examination of supply alternatives, and a discussion of the characteristics that must be considered when weighing the demand reduction and supply alternatives for implementation. Development of water supply plans that meet existing and future needs for growing service areas will be increasingly important to water providers in Arizona and throughout the and West.

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19

Cluff, C. Brent. „Slowsand/Nanofiltration of Surface Water“. Arizona-Nevada Academy of Science, 1991. http://hdl.handle.net/10150/296460.

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From the Proceedings of the 1991 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 20, 1991, Northern Arizona University, Flagstaff, Arizona
Since the spring of 1988 the University of Arizona has conducted nanofiltration research. The major emphasis has been the treatment of both Colorado River Water and municipal effluent. The work has been sponsored by the John F. Long Foundation Inc. and the Consolidated Water Utilities, Phoenix Az. Nanofiltration is a low pressure form of reverse osmosis. It operates at about 1/3 the pressure and 3 times the flux rate of older brackish water reverse osmosis systems. This reduces both the cost as well as the operating costs to approximately 1 /10 of the older reverse osmosis systems. The City of Ft Myers is projecting costs as low as $0.50-0.60/1000 gallons for their 20 MGD plant. Nanofiltration treats water the way it needs to be treated to meet the Environmental Protection Agency's (EPA) present minimum contamination levels (MCL) as well as projected future levels. Nanofiltration removes most of the bivalent inorganic molecules such as calcium and magnesium as well as some monovalent molecules such as sodium and chloride. It also removes pathogens and dissolved organics, thus reducing the trihalomethane formation potential (THMFP). The research on recharged effluent municipal effluent below the 91st Avenue Plant in Phoenix has shown the value of nanofiltration for reclaiming municipal wastewater to potable standards. A 20,000 GPD slowsand /nanofiltration pilot plant at Apache Junction has shown the effectiveness of the treatment on Colorado River Water at a 95% recovery over the past 2 years.

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20

Eusuff, Muzaffar M. „Water resources decision making using meta-heuristic optimization methods“. Diss., The University of Arizona, 2004. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_2004_051_sip1_w.pdf&type=application/pdf.

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21

Jackson, Steven J. „Building the virtual river : numbers, models, and the politics of water in California /“. Diss., Connect to a 24 p. preview or request complete full text in PDF formate. Access restricted to UC campuses, 2005. http://wwwlib.umi.com/cr/ucsd/fullcit?p3212684.

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22

Cory, Dennis C., und Molly V. Moy. „Reauthorization of the Safe Drinking Water Act and the Variability of Rural Public Water Systems“. Arizona-Nevada Academy of Science, 1995. http://hdl.handle.net/10150/296470.

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From the Proceedings of the 1995 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 22, 1995, Northern Arizona University, Flagstaff, Arizona

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23

Hassan, Mahmoud Wifag. „Water Harvesting for Integrated Water Resources Management and Sustainable Development in Khartoum State“. Doctoral thesis, Universitätsbibliothek Leipzig, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-125079.

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Khartoum State in Sudan is subject to the erratic and intense rainfall during the short rainy season and dryness and heat throughout the rest of the year. High intensity rainstorms with a short duration have become more frequent in the area during the last two decades resulting in cities inundation and flash floods in the rural parts. On the other hand, the dry season means hot weather in the urban parts and water shortage in the rural part. Rural areas are dependent on the runoff water brought about by the seasonal streams as a source of water. For this study, Khartoum City Center and Seleit area were taken to investigate the application of water harvesting in the urban and rural areas, respectively. Accordingly, the hydrological characteristics and the specification of the potential water harvesting sites and systems were examined. For Khartoum City Center, characteristics of the drainage system were examined using ArcGIS platform. It is found that the drainage system covers 42% of the area with total capacity of 24000 m3. Daily rainfall data for urban meteorological station were used to calculate the probability and the return period of the rainfall, as well as the potential runoff. Rainfall probability of occurrence was calculated applying Gumbel distribution method for extreme events that were arranged according to the Peak-over-Threshold method. The potential runoff that could be generated from a certain rainfall was calculated using the Natural Resources Conservation Services method provided by the United States Department of Agriculture (US-NRCS). Accordingly, the curve number was calculated depending on the land use/land cover and the hydrological soil group. Consequently, the weighted curve number is found to be 94%, indicating dominant imperviousness. 13.1 mm rainfall depth produces runoff volume equal to the drainage system capacity with return period of one year; whereas more than four folds the drainage system capacity is produced by 30 mm rainfall depth that is considered the threshold for raising flood hazard. Six potential sites for roof rainwater harvesting were selected. Accordingly, it is found that, the application of roof water harvesting in 18% and 72% of the commercial and business district buildings can accommodate the runoff resulting from the 13.1 and 30 mm rainfall depth, respectively. Hence, impounding rainstorm water would help managing the urban runoff water, and consequently, the stored water could be used for making more green areas that will enhance the urban environment. Three watersheds of ephemeral streams (wadi), namely Wadi El Kangar, Wadi El Seleit, and Wadi El Kabbashi make up Seleit area. Distinct maps were prepared in ArcMap for the calculation of the potential runoff and the specification of the appropriate water harvesting sites and systems. The Wadis watersheds areas are found to be 540, 344 and 42 km2 for Wadi El Kangar, Wadi El Seleit and Wadi El Kabbashi, respectively. Daily rainfall data of rural meteorological station were classified into three groups representing the soil dry (AMCI), moderate (AMCII), and wet (AMCIII) moisture conditions; the respective CNI, CNII, and CNIII values were calculated accordingly. The weighted CN values indicate high runoff potential within the three soil moisture conditions. Accordingly, the rainfall thresholds for runoff generation for AMCI, AMCII and AMCIII conditions are found to be respectively 18.3 mm, 9.1 mm and 4.4 mm for Wadi El Kabbashi and 22 mm, 11 mm and 5 mm for both Wadi El Seleit and Wadi El Kangar. El Kangar dam subwatershed was used for calibrating the potential runoff calculated by the NRCS method. Since the Wadis are ungauged, Google Earth and GIS platforms were used to calculate geometrically the volume of the dam reservoir water for three years. This volume was compared to the annual runoff calculated by the NRCS method. Consideration to different factors was made to locate the potential water harvesting sites. Accordingly, water harvesting systems for fodder and crop plantation; sand storage surface or subsurface dams; or groundwater recharge, were specified. The socio-economic study revealed that the financial capacity, if any, of the villagers is very limited. Thus, the financial source for the construction of the suggested potential water harvesting or the rehabilitation of the existing ones is questionable. Hence, other potential financial sources are needed to help executing water harvesting projects in the region, e.g. Khartoum State Government. Applying water harvesting in Seleit area is found to be promising. Improving the livelihood of the villagers by applying runoff water harvesting could assure better water accessibility, better income generation from farms production, and allocation of time for other activities, e.g. education. This would be reflected in reduced migration to nearby cities and stabilized market supply of agricultural and animal products. Therefore, the development of the rural part is of great benefit to the development of Khartoum State, as long as the interdependency and mutual benefit between the rural and urban areas, represented by the local food and labor market, remain exist.

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24

Juana, James Sharka. „Efficiency and equity considerations in modeling inter-sectoral water demand in South Africa“. Pretoria : [S.n.], 2008. http://upetd.up.ac.za/thesis/available/etd-06062008-140425/.

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25

Boime, Eric I. „Fluid boundaries : Southern California, Baja California, and the conflict over the Colorado River, 1848-1944 /“. Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2002. http://wwwlib.umi.com/cr/ucsd/fullcit?p3071055.

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26

Desta, Assefa, und Aregai Tecle. „Water Balance in Upper Lake Mary“. Arizona-Nevada Academy of Science, 2004. http://hdl.handle.net/10150/296627.

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27

Fisher, Karen Toni. „Meeting urban water needs : exploring water governance and development in Tagbilaran City, the Philippines /“. View thesis entry in Australian Digital Theses Program, 2006. http://thesis.anu.edu.au/public/adt-ANU20061221.100356/index.html.

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28

France, Glenn. „Evaluating the Effectiveness of the Casa del Agua Water Conservation Demonstration Tour in Promoting Water Conservation Behaviors“. Arizona-Nevada Academy of Science, 1989. http://hdl.handle.net/10150/296442.

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From the Proceedings of the 1989 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 15, 1989, University of Nevada, Las Vegas, Nevada
A typical single family residence in Tucson, Arizona (Casa del Agua) was retrofitted with water conserving devices, graywater and rainwater recycling systems, and a low water use landscape. An educational tour designed to promote the incorporation of these water saving techniques has been ongoing at the home since December, 1985. A questionnaire survey was administered between April and July 1988 to determine the extent of water conservation behavior, demonstrated by the adoption of the water conservation techniques, of the Pima County population and the tour participants. Both population samples exhibited similar water conservation behaviors. It was also determined, from the analysis of the survey results, that the tour led to additional water conservation technique adoption.

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29

Leao, Duncan, und Aregai Tecle. „Possible Impacts of Snowmaking Using Reclaimed Water on Water Resources and Other Related Issues in Flagstaff, Arizona“. Arizona-Nevada Academy of Science, 2003. http://hdl.handle.net/10150/296600.

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30

Josephy, Alvin M. „The Snake River basin adjudication the future of water in the West /“. Online pdf file accessible through the World Wide Web, 2006. http://archives.evergreen.edu/masterstheses/Accession86-10MES/Josephy_AMMESThesis2006.pdf.

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31

Brumbelow, James Kelly. „Improved methods for agricultural and water resources planning and management“. Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/23203.

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32

Groves, Donald G. „New Methods for Identifying Robust Long-Term Water Resources Management Strategies for California /“. Santa Monica, CA : RAND, 2006. http://www.rand.org/pubs/rgsdissertations/RGSD196/.

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33

Barron, Wendy. „An assessment of public participation in the South Central Texas Water Planning Group /“. View online, 2006. http://ecommons.txstate.edu/arp/162/.

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34

Aidarov, Irina. „Sustainable development and protection of water resources in arid lands /“. [Sedeh Boker] : Ben-Gurion University of the Negev, Albert Katz International School for Desert Studies, 2006. http://aranne5.lib.ad.bgu.ac.il/others/AidarovIrina.pdf.

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35

Olagunju, Emmanuel Gbenga. „Water resources development: opportunities for increased agricultural production in Nigeria“. Thesis, Linköping University, Department of Water and Environmental Studies, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-10031.

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Agriculture has been the backbone of the economy in Nigeria providing employment and source of livelihood for the increasing population and accounting for over half of the GDP of the Nigeria economy at independence in 1960. However, the role it plays in the regional and economic development of the country has diminished over the years due to the dominant role of the crude oil sector in the economy. With the increasing food demand in Nigeria, the country has available input natural resources and potential for increasing the volume of crop production towards meeting the food and nutritional requirement of the rapidly increasing population and guarantee food security in the country. The study was undertaken to analyse the effect of different factors and policies on the changes in trend of crop production and investigate the possible effect of water resources development on increased volume of agricultural crop production in Nigeria.

The study revealed that there are opportunities for water resources development in the country through irrigation to supplement the water requirements and needs of farmers for agricultural production activities in many areas in the semi-arid and arid regions. Available data shows that there are available land and water resources that could be developed to support the production of food and agricultural development with opportunity for increased productivity.

However, while the water resources are unevenly distributed in the country, there is need for the efficient use and management of the available water resources and increasing the productive use especially in the northern region of the country where there is increasing incidence of drought and competing need for water among the different sectors of the economy. The study also made possible recommendations for policy formulation to address the current problems facing the agricultural sector in conjunction with the requirement for the development of the water resources.

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36

Brittain, Richard, K. James DeCook und Kennith E. Foster. „Casa del Agua: Residential Water Conservation Retrofit“. Arizona-Nevada Academy of Science, 1985. http://hdl.handle.net/10150/296364.

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From the Proceedings of the 1985 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 27, 1985, Las Vegas, Nevada

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37

Rose, Joan B., Gwo-Shing Sun, Bart C. Weimer, Rod S. Silverman, Charles P. Gerba und Norval A. Sinclair. „Microbial Quality of Gray Water for Reuse“. Arizona-Nevada Academy of Science, 1986. http://hdl.handle.net/10150/296368.

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From the Proceedings of the 1986 Meetings of the Arizona Section - American Water Resources Association, Hydrology Section - Arizona-Nevada Academy of Science and the Arizona Hydrological Society - April 19, 1986, Glendale Community College, Glendale, Arizona
As the scarcity of water and the price of municipal water inevitably increase, gray water reuse may become an inexpensive and viable alternative for such purposes as irrigation, lawn maintenance and water closet flushing. However, some problems do exist. The microbial and chemical content of gray water includes agents that may present public health problems. The purpose of this study was to determine the general microbial composition of gray water using standard plate counts and selective media at specific sites (shower/bath, wash cycle and rinse cycle of a clothes washing machine) and the general chemical and physical properties of gray water at these same sites (phosphate, ammonia, chloride, pH, TDS and turbidity). Samples were taken from a diverse group of families with and without children (1 ½ - 9 years). Standard plate count bacteria ranged from 10⁵ to 10¹⁰ colony forming units (CFU)₄/100 ml. Shower and bath water contained an average of 10⁴ to 10⁶ CFU/100 ml of coliforms. Failies with children produced wash cycle gray water containing 10⁶ CFU /100 ml of fecal coliforms. Ammonia concentrations varied proportionally with bacterial concentrations while phosphate varied inversely with bacterial growth. Bacterial numbers increased one order of magnitude during storage of gray water.

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38

Foster, Kennith E., und L. G. Wilson. „Arizona Water Information Center: Foundation and Activities“. Arizona-Nevada Academy of Science, 1985. http://hdl.handle.net/10150/296384.

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From the Proceedings of the 1985 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 27, 1985, Las Vegas, Nevada

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39

Onanda, Michael Robert. „Development of a decision support system for a multipurpose reservoir“. Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.480594.

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40

Center, University of Arizona Water Resources Research. „Arizona Water Resource No. 1 (October 1997)“. Water Resources Research Center, College of Agriculture, University of Arizona (Tucson, AZ), 1997. http://hdl.handle.net/10150/317566.

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This special supplement provides news and information about El Niño. In a sense, the publication will serve as an El Niño Times, informing Arizona water professionals and others interested in water affairs of plans, projects and activities relating to weather affected by El Niño. The publication will concentrate on events occurring in Arizona but also will provide more general information about El Niño and its expected effects.

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Center, University of Arizona Water Resources Research. „Arizona Water Resource No. 2 (December 1997)“. Water Resources Research Center, College of Agriculture, University of Arizona (Tucson, AZ), 1997. http://hdl.handle.net/10150/317567.

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This year's El Niño already has fully earned its claim to fame; this is the first such event predicted so far in advance. Also, the extent to which this year's event is being studied and observed is unprecedented.

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Center, University of Arizona Water Resources Research. „Arizona Water Resource No. 3 (February 1998)“. Water Resources Research Center, College of Agriculture, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/325883.

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Because of El Niño's seemingly late start and uncertain progress, a pattern that did not conform to some early predictions, some people in the western United States question what effect El Niño finally will have on the area; some even believe the event might be diminishing. El Niño, however, should not be lightly dismissed, as recent rains demonstrate. A January report from the U.S. Weather Service's Tucson office confirms El Niño's continued presence: 'We are currently in a strong El Niño episode, which is forecast to continue through April 1998. This episode is similar in magnitude and aerial extent to that of 1982-83, which is considered the strongest of the century."

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Center, University of Arizona Water Resources Research. „Arizona Water Resource No. 4 (June 1998)“. Water Resources Research Center, College of Agriculture, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/325902.

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Increased precipitation from El Niño ensures more abundant vegetative growth, which in turn raises concern about increased fire hazards, especially during Arizona's summer fire season. Whatever fire hazards are due this year to El Niño are not being experienced evenly throughout the state, however, with some areas actually having less fires. And, in some cases, El Niño's legacy may not be apparent this season, but instead be evident by fires in future years.

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44

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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45

Gumede, Felicity Hlengiwe. „An assessment of the companion modelling approach in a context of negotiating water allocation strategies : the case of the Kat River Valley, Eastern Cape, South Africa“. Thesis, Rhodes University, 2008. http://eprints.ru.ac.za/1530/.

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46

Amalfi, Frederick A. „Water Resource Management in the Lake Baikal Region“. Arizona-Nevada Academy of Science, 1991. http://hdl.handle.net/10150/296464.

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From the Proceedings of the 1991 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 20, 1991, Northern Arizona University, Flagstaff, Arizona
In August 1990, a team of North American and Soviet researchers travelled to several cities on the shores of Lake Baikal in southern Siberia. The purpose of the investigation was to develop a means of protecting and restoring the world's oldest and largest volume lake. Lack of water resource management strategies was identified as the key factor which may result in further deterioration of lake water quality and the diversity of biota which it supports. Deforestation, antiquated agricultural practices, inadequate solid and liquid waste disposal, and industrial contamination threaten the aesthetic quality and commercial uses of the lake. The recommendations of the joint investigative committee are summarized.

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47

Foster, Kennith E., und Martin M. Karpiscak. „Water Conservation Potential Research at Casa del Agua“. Arizona-Nevada Academy of Science, 1989. http://hdl.handle.net/10150/296441.

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From the Proceedings of the 1989 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 15, 1989, University of Nevada, Las Vegas, Nevada
Casa del Agua is a research and demonstration project to test the efficiency and liveability of a house that has been relandscaped and redesigned with water saving and recycling devices. Ongoing research focuses on six interrelated tasks: 1) water quality and sampling to characterize graywater and rainwater and to determine their potential to impact the environment; 2) water balance analysis that quantifies fresh water use, graywater production and use, and rooftop runoff and use; 3) evaluation of system components that could enhance graywater reuse; and 4) maintenance and modification of existing systems. An interpretation of recent data and information derived from the performance of the above tasks indicates the effectiveness of the project's water-saving strategies, as well as other significant findings relevant to water conservation in an urban, residential setting.

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48

Wilson, Robert. „The NPDES Storm Water Rules - A Municipal Impact“. Arizona-Nevada Academy of Science, 1991. http://hdl.handle.net/10150/296448.

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From the Proceedings of the 1991 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 20, 1991, Northern Arizona University, Flagstaff, Arizona

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Kruse, Michael J. „Arizona Reclaimed Water Regulation: The Future is Now“. Arizona-Nevada Academy of Science, 1991. http://hdl.handle.net/10150/296465.

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From the Proceedings of the 1991 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 20, 1991, Northern Arizona University, Flagstaff, Arizona
Legal, legislative, technical and conservation factors have created a significant amount of reclaimed water reuse in Arizona. Critical recent events include: * Passage of the 1980 Groundwater Management Act * Arizona Department of Water Resources Management Plans * Passage of Environmental Quality Act * Creation of Arizona Department of Environmental Quality * 1989 Arizona Supreme Court Decision of the Status of Effluent * 1991 Arizona Reuse Rule Adoption Status

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DeBano, Leonard F. „Fire-Induced Water Repellency in Soils: Hydrologic Implications“. Arizona-Nevada Academy of Science, 1999. http://hdl.handle.net/10150/296546.

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Dissertationen zum Thema „Water resources development“

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