Time (min)

Copper ion concentration of wastewater

50 mg/l

100 mg/l

150 mg/l

175 mg/l

200 mg/l

1

0.000

0.199

0.699

1.5

1.049

2

0.000

0.349

1.321

2.5

1.830

3

0.000

2.302

4

0.000

0.821

5

0.000

0.000

0.964

6

0.000

1.205

7

0.000

8

0.058

9

0.102

10

0.039

0.183

11

0.280

12

0.149

0.414

13

0.611

14

0.339

0.789

15

1.058

16

0.658

1.374

18

0.799

20

1.099

30

0.000

35

0.230

40

0.499

45

0.739

50

1.058