Reactive Blue 21 at 630nm

Dye decolourization percentage for 11 days

S.no

pH

On day 1st

On day 3rd

On day 5th

On day 7th

On day 9th

On day 11th

1

4.5

18.03

23.35

29.23

35.45

41.66

57.83

2

5.5

15.09

28.07

37.45

49.01

71.90

88.05

3

6.5

11.21

17.56

24.65

29.37

30.48

51.65