10⁻⁴ [IC]

ksec⁻¹

Effect of pH

COD values in mg/l

Before degradation

After degradation

Before degradation

After degradation

0.5

12.1 × 10⁵

6.95

6.14

370

15

0.75

10.1 × 10⁵

7.32

6.89

490

25

1.0

9.67 × 10⁵

7.68

6.93

710

40

1.25

7.61 × 10⁵

7.83

6.82

930

15

1.5

5.81 × 10⁵

7.95

6.75

1327

16