Table 9 Kinetics parameters of HC.

From: Adsorptive potential of hydrochar produced from avocado waste biomass for the sequestration of Alizarin red S dye from aquatic environment

Models

Parameters

Values

50 mg/L

100 mg/L

150 mg/L

200 mg/L

250 mg/L

qe, exp (mg/g)

25.21

49.14

70.39

88.14

100.12

PFO

k1 (min−1)

0.09208

0.07589

0.06848

0.06412

0.05363

qe, cal(mg/g)

25.55

50.92

73.36

93.54

109.8

R2

0.9804

0.9553

0.9425

0.93

0.9118

SSE

1.63

21.81

68.63

151.2

318.5

RMSE

0.6383

2.335

4.142

6.147

8.923

PSO

k2 (g/mg.min)

0.003904

0.001337

0.0007608

0.0005238

0.0003195

qe, cal(mg/g)

29.87

62.15

91.79

119.1

146.5

R2

0.9199

0.897

0.8898

0.8804

0.8735

SSE

6.658

50.24

131.4

258.3

456.9

RMSE

1.29

3.544

5.732

8.036

10.69

Elovich

α (mg/g)

10.43

10.87

12.18

13.43

11.76

Β (g/mg.min)

0.1765

0.07299

0.04649

0.03455

0.02646

R2

0.8487

0.8452

0.8515

0.8511

0.8681

SSE

12.57

75.46

177.1

321.6

476.7

RMSE

1.773

4.343

6.654

8.967

10.92

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