PH = 5

Beaker No.

1

2

3

4

5

6

Leaves Solution (mg/l)

0

3

6

9

12

15

Alum (mg/l)

18

15

12

9

6

3

% (Solution/Total dose )

0%

17%

33%

50%

67%

83%

Turbidity (NTU) (sample A)

1.41

0.91

1.18

1.52

1.8

2.93

Turbidity (NTU) (sample B)

2.42

2

1.8

2.87

3.16

7.07

PH = 7

Beaker No.

1

2

3

4

5

6

Leaves Solution (mg/l)

0

3

6

9

12

15

Alum (mg/l)

18

15

12

9

6

3

% (Solution/Total dose )

0%

17%

33%

50%

67%

83%

Turbidity (NTU) (sample A)

1.34

1.12

0.36

0.74

1.81

4.61

Turbidity (NTU) (sample B)

1.75

0.56

0.86

1.46

1.82

4.14

PH = 9

Beaker No.

1

2

3

4

5

6

Leaves Solution (mg/l)

0

4

8

12

16

20

Alum (mg/l)

24

20

16

12

8

4

% (Solution/Total dose )

0%

17%

33%

50%

67%

83%

Turbidity (NTU) (sample A)

1.33

1.09

0.5

3.09

4.01

4.17

Turbidity (NTU) (sample B)

1.2

1.08

0.39

1.8

2.21

2.3