Parameters

Untreated water

Treated water

WHO Standard 

Alkalinity

266.5 ppm

116.6 ppm

200 ppm

BOD

4.3 ppm

1.8 ppm

6 ppm

Ca2+

28.0 ppm

20.0 ppm

75 ppm

Cl-

213 ppm

165.6 ppm

200 ppm

COD

20.2 ppm

9.3 ppm

10 ppm

Hardness

381.3 ppm

296 ppm

100 ppm

Mg2+

5.06 ppm

2.02 ppm

30 ppm

NO3-

2.33 ppm

1.55 ppm

50-100 ppm

SO42-

38.73 ppm

22.70 ppm

200 ppm

TDS

111 ppm

99 ppm

500 ppm

pH

2

1.9

6.5-8.5     

Temperature  ˚C

34.6

41.1

Not available

Table 2: Quantitative analysis of water quality