Time (hr.)

R
(%)

Salt passage (%)

Jw×10-5 ( gm/ cm2.s)

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

salts (%) of TDS of feed concentration

NaCl

MgCl2

CaCl2

CaSO4

Ca(HCO3)2

0

0

100

0

13986

59

20

3

16

2

 

Salinity of post-treated water (mg/l)

Salt rejection (%)

NaCl

MgCl2

CaCl2

CaSO4

Ca(HCO3)2

8

49.7

50.31

13.88

7036.78

29.82

10.94

0. 22

7.95

0.99

16

58.1

41.88

10.80

5856.81

31.36

13.72

0.49

11.39

1.16

24

63.8

36.17

9.26

5059.11

32.59

14.57

1.91

13.47

1.28

Table 7: Reverse osmosis parameters for the PVA/CA+PEG membrane in desalination of highly saline water sample.
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