The Future of Membranes in Seawater Desalination - emwis
The Future of Membranes in Seawater Desalination - emwis
The Future of Membranes in Seawater Desalination - emwis
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DESALINATION AND SUSTAINABILITY<br />
Translat<strong>in</strong>g membrane & design evolution<br />
Cost <strong>of</strong><br />
Water<br />
<strong>in</strong>to cost <strong>of</strong> water reduction<br />
57.<br />
56.<br />
56.<br />
60<br />
4<br />
7<br />
4<br />
UScts/m 3 UScts/m 3 UScts/m 3 UScts/m 3<br />
1 – 2 March<br />
Basic design<br />
Improved membrane<br />
chemistry and<br />
construction<br />
Advanced<br />
Design<br />
(Split)<br />
Advanced<br />
Design<br />
(ISD & SPLIT)<br />
• Improved rejection:<br />
SW30HRLE from 99.75 to 99.80%<br />
• Increase <strong>in</strong> active area:<br />
from 400 to 440 ft 2<br />
• Same as basic design<br />
but us<strong>in</strong>g split <strong>in</strong> the firts<br />
pass<br />
• Same as basic design<br />
but us<strong>in</strong>g split and ISD<br />
<strong>in</strong> the firts pass<br />
• Evaluation based on a large SWRO desal<strong>in</strong>ation plant (>100,000 m 3 /day), 41,000 feed TDS,<br />
16-32 ºC, Boron <strong>in</strong> permeate below 0.26 ppm<br />
• Number <strong>of</strong> pressure vessels not modified. Cost evaluation based on energy sav<strong>in</strong>gs (OPEX).<br />
© 2012 International Desal<strong>in</strong>ation Association
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