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INTEGRATING DESALINATION AND AGRICULTURAL SALINITY CONTROL ALTERNATIVES
Citation:
Walker, W. INTEGRATING DESALINATION AND AGRICULTURAL SALINITY CONTROL ALTERNATIVES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-78/074 (NTIS PB281381), 1978.
Description:
The cost-effectiveness relationships for various agricultural and desalination alternatives for controlling salinity in irrigation return flows are developed. Selection of optimal salinity management strategies on a river basin scale is described as a problem of integrating optimal strategies with individual subbasins and irrigated valleys. Desalination systems include seven processes: (1) Multi-stage distillation; (2) vertical tube evaporation in conjunction with (1); (3) a vapor compression form of (2); (4) electrodialysis; (5) reverse osmosis; (6) vacuum freezing-vapor compression; and (7) ion exchange. Agricultural salinity control alternatives include conveyance linings, irrigation scheduling, automation, sprinkler irrigation systems, and trickle irrigation systems. A case study of the Grand Valley in western Colorado is presented to demonstrate the analysis developed.