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1	Economic Alternatives in Solving the U. S.-Mexico Colorado River Water Salinity Problem (invited) Martin, William E. 20 April 1974 (has links) From the Proceedings of the 1974 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 19-20, 1974, Flagstaff, Arizona / A proposed desalting plant is an engineering solution to the effects of a problem which could have been avoided and even now could be reduced on the farm. Water costing $125 per acre-foot will be delivered to Mexico to grow wheat, cotton, garden crops, alfalfa and safflower, of which the average value added per acre-foot was estimated at $80 for cotton and garden crops and $14 for wheat, alfalfa and safflower. The U.S. government, instead of building the desalting complex, could accomplish its purpose just as well by paying each farmer in the Yuma area, in return for the farmers reducing their drainage flow by whatever method they see fit, $114 per acre per year for the next 50 years. With proper management on the farm, the costs of managing salinity need not be high. Hydrology -- Arizona. Water resources development -- Arizona. Hydrology -- Southwestern states. Desalination Salinity Alternative planning Cost comparisons Colorado River Irrigation water Alternative water use Water utilization Water management (applied) Cost analysis Water rates Project planning Alternative costs Saline water Desalination plants Mexico Water quality Water pollution sources Water reuse Drainage water Irrigation programs Water policy
2	Fresh Water for Arizona by Salt Replacement Desalination Muller, Anthony B. 20 April 1974 (has links) From the Proceedings of the 1974 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 19-20, 1974, Flagstaff, Arizona / The process of salt replacement desalination proposed is believed to be able to produce vast quantities of fresh water be desalination. This method, which is a novel approach to minimizing the costs of saline water conversion, consists of the substitution of solutes in a solution to be desalted by a replacer chemical, and the low energy removal of that replacer chemical. The ultrafiltration of larger molecular sized replacer chemicals with high flux membranes increases the produce yield rate and reduces the corresponding energy requirement, with respect to reverse osmosis. In addition, the initial captial investment is less since no pressure constraining devices are required. The alteration of the osmotic pressure of the replacer solution within the process can also take advantage of energy savings through the utilization of an easily reversible reaction which synthesizes and breaks down a constituent that has a significant osmotic pressure difference between phases. Finally, the unusual process of fixed gel syneresis shows potential as a low energy salt replacement type process, but still requires extensive investigation. Hydrology -- Arizona. Water resources development -- Arizona. Hydrology -- Southwestern states. Desalination Water chemistry Desalination processes Membrane processes Reverse osmosis Arizona Water treatment Water purification Desalination plants Costs Saline water Water supply Cost comparisons Solvent extractions Water yield Salt replacement desalination Replacer chemical Ultrafiltration High flux membranes Energy requirements Fixed gel syneresis
3	An Application of Multidisciplinary Water Resources Planning and Management for the San Carlos Apache Indian Reservation: Gila River Case Novelle, M. E., Percious, D. J., Wright, N. G. 16 April 1977 (has links) From the Proceedings of the 1977 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 15-16, 1977, Las Vegas, Nevada / The Laboratory of Native Development, Systems Analysis and Applied Technology (NADSAT) was established to provide technical assistance to southwestern Indian Tribes as an aid in the development and use of their natural resources according to their goals and objectives. NADSAT 's role is assistance and technology transfer, with an emphasis on alternative formulation and performance analysis and communicating the technological approach to tribal decision makers. The cost-effectiveness methodology provides a coherent framework and affords a mechanism for technology transfer, which makes it a useful tool in achieving tribal goals. This method was applied to the formulation of possible alternatives for use of the land and water resources of the Gila River Basin within the San Carlos Apache Indian Reservation. Criteria for devising various alternative utilization schemes are discussed, and the advantages of the cost effectiveness methodology. Hydrology -- Arizona. Water resources development -- Arizona. Hydrology -- Southwestern states. Systems analysis Non-structural alternatives Indian reservations Cost comparisons Cost-benefit analysis Water management (Applied) Gila River San Carlos Apache Indian Reservation Methodology Design Management Cost analysis Evaluation Planning Decision making Technology transfer Technical assistance

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