Process for desalination of sea water, having increased product yield and quality

摘要: A desalination process is disclosed which combines two or more substantially different water treatment processes in an unique manner to desalinate saline water, especially sea produce a high yield of quality fresh including potable at energy consumption equivalent less than much efficient prior art processes. In this nanofiltration step synergistically combined with least one reverse osmosis, multistage flash distillation, multieffect distillation vapor compression provide integrated system by can be efficiently and economically converted yields are 70 %-80 % greater the available from Typically invention using initial will produce, respect feed properties, calcium, magnesium, sulfate bicarbonate ion content reductions 63 %-94 %, pH decreases about 0.4-0.5 units total dissolved solids 35 %-50 %.