AWWA JAW68766

Many communities need affordable inland desalinationto meet increasing water demands by makingbrackish water sources available for use in supplementingexisting water supplies or to control the salinity ofcurrent sources. Most desalination technologies generatetwo streams, a desalinated product water streamand the saline byproduct referred to as concentrate.Management of the concentrate stream, typically15-30% of the feed flow, presents the greatest challengeto implementing desalination.This research demonstrated the novel use of existingtechnologies to reduce the cost and energy consumptionfor desalination with zero liquid discharge (ZLD) of concentrate.Test results indicated treatment of the concentratefor further recovery by a second application of reverseosmosis could lead to significant reductions in desalinationcosts and energy consumption to achieve ZLD. Theapproach described here could cut ZLD costs by 50-70%and reduce energy consumption by 60-75% comparedwith established methods currently in use. Includes 10 references, tables, figures.

Product Details

Edition:

Vol. 100 - No. 9

Published:

09/01/2008

Number of Pages:

14

File Size:

1 file , 780 KB