Time (days)

4

8

12

16

20

pH

7.1

7.3

7.0

7.2

7.4

TDS, mg/L

450

320

250

189

95

Conductivity, mg/L

650

580

500

460

215

Temperature, ˚C

25.5

27.7

26.4

28.7

28.3

Alkalinity, mg/L

10

6

3

2

2

Acidity, mg/L

130

100

80

70

50

Oil & Grease, mg/L

38.0

30.0

25.0

15.0

7.0

TSS, mg/L

105

90

70

65

40

COD, mg/L

120

100

90

60

49

DO, mg/L

9.15

8.11

7.49

7.07

6.66

BOD, mg/L

45.76

40.56

37.44

35.36

33.28

Turbidity, mg/L

10.5

9

7

6.5

4

TS, mg/L

555

410

320

214

135