Specifications

23G-Series RO System
3024270 Rev G 5 14Oct13
Figure 1.2 System Schematic
An example of how to calculate salt rejection and recovery:
Salt Rejection calculation:
Assume C
f
= 100mg/L
Average Concentration (C
avg
) = (C
f
) + (C
c
) 100 mg/L + 375 mg/L = 237.5 mg/L TDS
2 2
Rejection = (C
avg
) - (C
p
) x 100 250 – 8.3 x 100 = 96.7%
(C
avg
) 250
Passage = (C
p
) x 100 8.3 x 100 = 3.3%
(C
avg
) 250
Membrane recovery flow percentage calculation:
Recovery = (Q
p
) x 100 18 gpm x 100 = 75%
(Q
f
) 24 gpm
Feed
Pump
Membrane
Porous
Backing Material
375 mg/L
6 gpm
8.3 mg/L
18 gpm
(C
c
)
Concentrate
(Q
c
)
C
avg
(C
p
)
Permeate
(Q
p
)
24 gpm
(C
f
)
(Q
f
)
Recovery 75%
100 mg/L
100 mg/L