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Table 2 Kinetic parameters of the Elovich model for adsorption of heavy metals onto BC in landfill leachate

From: Adsorption of Lead, manganese, and copper onto biochar in landfill leachate: implication of non-linear regression analysis

Adsorbate

Adsorbent dosage

 

Elovich kinetics for PWB

 

Elovich kinetics for CWB

qe(cal.) (mg g−1)

β

α

R2

SSE

qe(cal.) (mg g− 1)

β

α

R2

SSE

Pb

0.05

0.49

14.5

0.056

0.953

0.002

0.39

18.2

0.044

0.955

0.001

0.1

0.48

14.7

0.055

0.952

0.002

0.38

18.5

0.043

0.956

0.001

0.25

0.37

18.9

0.043

0.948

0.002

0.30

23.8

0.034

0.955

0.001

0.5

0.30

23.8

0.034

0.948

0.001

0.21

34.5

0.024

0.955

0.000

0.75

0.23

30.3

0.027

0.949

0.001

0.16

43.5

0.019

0.955

0.000

1

0.18

38.5

0.021

0.937

0.000

0.13

52.6

0.015

0.951

0.000

1.5

0.13

52.6

0.015

0.937

0.000

0.10

71.4

0.011

0.951

0.000

2

0.10

71.4

0.011

0.937

0.000

0.08

90.9

0.009

0.951

0.000

3

0.07

100.0

0.008

0.939

0.000

0.06

125.0

0.006

0.951

0.000

5

0.04

166.7

0.005

0.935

0.000

0.04

200.0

0.004

0.952

0.000

Mn

0.05

1.76

4.0

0.201

0.952

0.032

1.55

4.6

0.176

0.956

0.028

0.1

1.71

4.1

0.195

0.952

0.031

1.53

4.6

0.174

0.956

0.026

0.25

1.20

5.9

0.137

0.948

0.016

1.07

6.6

0.121

0.955

0.013

0.5

0.84

8.6

0.107

0.948

0.000

0.81

8.8

0.092

0.955

0.008

0.75

0.76

9.3

0.086

0.948

0.006

0.63

11.1

0.072

0.954

0.005

1

0.61

11.5

0.07

0.937

0.004

0.52

13.6

0.059

0.95

0.003

1.5

0.47

15.2

0.053

0.937

0.002

0.38

18.9

0.045

0.95

0.001

2

0.37

18.9

0.043

0.937

0.002

0.31

22.8

0.035

0.95

0.001

3

0.26

27.0

0.03

0.936

0.001

0.23

31.3

0.026

0.95

0.001

5

0.16

43.5

0.019

0.936

0.000

0.14

50.0

0.016

0.95

0.000

Cu

0.05

0.45

15.9

0.051

0.952

0.003

0.51

13.9

0.058

0.957

0.003

0.1

0.44

16.1

0.050

0.952

0.003

0.47

15.2

0.053

0.957

0.002

0.25

0.35

20.0

0.041

0.948

0.001

0.35

20.0

0.041

0.955

0.001

0.5

0.28

25.0

0.032

0.948

0.001

0.26

27.0

0.030

0.955

0.001

0.75

0.23

30.3

0.027

0.948

0.000

0.20

35.8

0.023

0.954

0.000

1

0.19

37.0

0.022

0.937

0.000

0.17

41.7

0.019

0.955

0.000

1.5

0.14

50.0

0.016

0.937

0.000

0.13

55.6

0.014

0.955

0.000

2

0.11

62.5

0.013

0.937

0.000

0.10

71.4

0.011

0.949

0.000

3

0.08

90.9

0.009

0.936

0.000

0.07

100.0

0.008

0.949

0.000

5

0.05

142.9

0.006

0.937

0.000

0.04

166.7

0.005

0.948

0.000