Time (min)

Cell 1

Cell 2

Cell 3

Cell 4

mg/L

mg/L

mg/L

mg/L

Fe

5

8.27

6.23

4.88

4.54

20

6.87

5.65

4.62

3.88

40

5.22

4.97

3.87

2.99

Cu

5

2.28

2.24

2.17

1.54

20

2.17

1.97

1.94

0.97

40

1.69

1.49

1.64

0.84

Co

5

6.4

5.89

5.62

4.51

20

5.64

5.23

4.45

4.09

40

5.27

3.52

2.98

3.55

Zn

5

13.27

11.73

10.45

8.72

20

11.65

10.14

9.52

7.96

40

10.15

9.11

8.02

6.89

Pb

5

1.67

1.62

1.43

1.05

20

1.41

1.32

1.09

0.79

40

1.17

1.11

0.79

0.7

SS

5

357.45

368.88

225.67

188.43

20

345.64

297.64

167.82

130.61

40

198.76

177.46

130.42

118.49