Time (days)

4

8

12

16

20

pH

6.8

7.1

6.3

6.5

5.9

TDS, mg/L

490

400

323

290

150

Conductivity, mg/L

712

690

601

510

308

Temperature, ˚C

25.6

27.5

26.3

28.5

28.4

Alkalinity, mg/L

10

8

6

5

3

Acidity, mg/L

120

110

100

80

60

Oil & Grease, mg/L

42.0

38.0

30.0

20.0

10.0

TSS, mg/L

110

100

85

72

60

COD, mg/L

152

120

112

90

73

DO, mg/L

9.57

8.94

8.74

8.32

7.70

BOD, mg/L

47.84

44.72

43.68

41.60

38.48

Turbidity, mg/L

11

10

8.5

7.2

6

TS, mg/L

600

500

408

362

210