Time (hr)

Rs (%)

Salt passage (%)

Jwx10-5 ( gm/ cm2.s)

Salinity of pre-treated Water (Row water) (mg/l)

salts (%) of TDS of feed concentration

NaCl

MgCl2

MgSO4

CaSO4

Ca(HCO3)2

0

0

100

0

3333

46

18

7

22

7

 

Salinity of post-treated water (mg/l)

Salt rejection (%)

NaCl

MgCl2

MgSO4

CaSO4

Ca (HCO3)2

8

51

49

15.43

1619.9

22.67

9.74

4.08

11.31

3.60

16

61

39

14.20

1301.4

26.47

12.14

4.66

13.80

3.88

24

70

28

10.28

932.8

30.60

14.08

6.16

16.40

4.76

Table 6: Reverse osmosis parameters for the PVA/CA+PEG membrane in desalination of brackish water sample.
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