About 70% of all fresh water usage goes towards agriculture.
Furthermore, regeneration recycle is only utilized to eliminate fresh water usage for processes in which regeneration reuse is impossible.
An optimal recycle network with zero fresh water usage and minimum waste discharge is also constructed, making the process more competitive and economically attractive.
The resulting fuzzy bi-level programming model may then be solved to yield a "satisficing" solution that reflects a reasonable compromise between the EIP authority's desire to minimize fresh water usage, and the participating companies' desire to minimize costs.
Photosynthetic marine algae are attractive targets for the production of biofuels and bio-products because they have the ability to capture and fix carbon dioxide using solar energy and they grow in seawater, thereby minimizing fresh water usage.
This study deals with the synthesis problem of mass exchange networks (MENs) with treatment option for waste minimization and minimal fresh solvent usage by adopting a hybrid combined graphical and mathematical programming approach based on state-space representation.
Fresh water usage reduction through freeze concentration of mill effluent using gas hydrate / Peter X. Long, Jeffrey S. Hsieh and Peter W. Hart ; Fouling electrodialysis membranes by organic macromolecules / Peter H. Pfromm and E. James Watkins ; Development of a volatile organic compound (VOC) database in Kraft Mills using headspace gas chromatography / J.Y. Zhu, X.S. Chai and B. Dhasmana.
Model equations were developed to predict total COD levels in flushed dairy manure wastewater as a function of fresh flushwater usage per animal unit for similar dairy operations, providing an important design parameter for implementation of fixed-film anaerobic digestion systems.
This task requires the identification of network configuration, fresh-water usage, recycle assignments from sources to sinks, wastewater discharge, and a scheduling scheme.
Combined with increasing global population, the need to better manage fresh water use, particularly agricultural usage, is paramount.
