Table 3 Results of ADS/EC of Conc. Cu2+ and Ni2+ by AGWTR from different water samples.

From: Waste tea residue adsorption coupled with electrocoagulation for improvement of copper and nickel ions removal from simulated wastewater

Sr. no.

Water sample analyzed

Conc. Cu2+ and Ni2+ before ADS (mg L−1)

Conc. Cu2+ and Ni2+ after ADS (mg L−1)

Conc. Cu2+ and Ni2+ after ADS/EC (mg L−1)

Maximum adsorption capacity (qe) (mg g−1)

% Removal for ADS/EC process

Copper(II)

Nickel(II)

Copper(II)

Nickel(II)

Copper(II)

Nickel(II)

Copper(II)

Nickel(II)

Copper(II)

Nickel(II)

1

Changchun cars industry wastewater

107.1

84.5

41.7

33.6

2.03

2.4

10.507

8.247

98.104

97.7591

2

Xiao Hetai wastewater treatment plant

82.6

72.1

32.4

30.2

1.44

1.7

8.116

7.04

98.256

97.94189

3

Yinma River

61.3

40.03

23.8

21.4

0.17

1.03

6.113

3.9

99.722

98.31974