Selective Salt Recovery from Reverse Osmosis Brine - University of ...
Selective Salt Recovery from Reverse Osmosis Brine - University of ...
Selective Salt Recovery from Reverse Osmosis Brine - University of ...
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Table 1: RO Parameters<br />
Stage 1 recovery 0.75<br />
Stage 1 rejection 0.99<br />
Stage 2 recovery 0.9<br />
Stage 2 rejection 0.99<br />
Table 2: Cations and Anions in Feed Water<br />
Ion Sodium Calcium Magnesium Chloride Sulfate Carbonate<br />
Concentration (mg/L) 580 200 100 894 479 247<br />
Table 3: <strong>Salt</strong> Balance<br />
Cations Sodium Calcium Magnesium<br />
Water Flow Conc. Conc. Conc.<br />
Flow Description (m3/d) (meq/L) (meq/L) (meq/L)<br />
1 System feed 1000.00 25.23 9.98 8.23<br />
2 Stage 1 permeate 750.00 0.25 0.10 0.08<br />
3 Stage 1 concentrate 250.00 100.16 39.62 32.67<br />
4 Cat-IX effluent 250.00 172.45 0.00 0.00<br />
5 An-IX effluent 250.00 172.45 0.00 0.00<br />
6 Stage 2 permeate 225.00 1.72 0.00 0.00<br />
7 IX regeneration feed 25.00 1709.00 0.00 0.00<br />
8 Cat-IX regen waste 12.50 263.09 792.42 653.50<br />
9 An-IX regen waste 12.50 1709.00 0.00 0.00<br />
10 Liquid residuals 25.00 850.30 24.00 21.00<br />
11 Solid products 0.00 -- -- --<br />
12 System product water 975.00 0.59 0.08 0.06<br />
Anions Chloride Sulfate Carbonate<br />
Water Flow Conc. Conc. Conc.<br />
Flow Description (m3/d) (meq/L) (meq/L) (meq/L)<br />
1 System feed 1000.00 25.23 9.98 8.23<br />
2 Stage 1 permeate 750.00 0.25 0.10 0.08<br />
3 Stage 1 concentrate 250.00 100.16 39.62 32.67<br />
4 Cat-IX effluent 250.00 100.16 39.62 32.67<br />
5 An-IX effluent 250.00 172.45 0.00 0.00<br />
5
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