Page 284 - ro membanes
P. 284
FIGURE 12.7
Two-stage SWRO system.
12.4 ALTERNATIVE SWRO-MEMBRANE SYSTEMS AND PRETREATMENT 267
Dual Media Filters
Sea W. Pumps
Sea water 40.000mg/I 22-35 °C
Filtered W.Pumps
Cartridge Filters
17+1 SW R.O.Trains 10.950 m3/d each
Recovery 43%
8 BW R.O.Trains Recovery 90% 16.800 m3/d each
I F
9 HP Pumps
18 TurboPumps
Reject
Sea Water Open Intake
Treated water to mix w/MSF water
Treated W.Pumps
Total Recovery 41%
Treated W.Tanks
TDS<180mg/I
FIGURE 12.8 Schematic of the Fujairah seawater desalination plant.
12.4.6 Three-Center/Four-Stage RO-System Configuration
As indicated previously, a typical conventional SWRO system is configured in individual equally sized RO trains each of which is serviced by a separate transfer pump, cartridge filter vessel, high-pressure feed pump, and energy-recovery equipment dedicated to this RO train.
