Table 5 Comparison of the IDM and FIM rate constants and calculated parameters for different initial AY36 dye concentrations.

From: Adsorption of Acid Yellow 36 and direct blue 86 dyes to Delonix regia biochar-sulphur

DRB-S dosage

AY36 (ppm)

IDM

FIM

Kdif

C

R2

KFD

R2

0.75 g L–1

50

0.708

56.240

0.778

0.022

0.923

75

1.238

82.553

0.826

0.044

0.974

100

2.163

102.820

0.854

0.033

0.878

125

3.275

115.160

0.985

0.026

0.925

150

4.131

136.200

0.978

0.035

0.854

1.0 g L–1

50

0.438

43.544

0.913

0.017

0.958

75

0.514

67.210

0.956

0.025

0.984

100

1.173

82.968

0.926

0.027

0.925

125

1.313

104.910

0.851

0.034

0.985

150

2.311

115.770

0.783

0.026

0.917

1.25 g L–1

50

0.333

35.265

0.880

0.016

0.936

75

0.334

54.908

0.954

0.029

0.949

100

0.722

69.768

0.896

0.026

0.962

125

1.015

85.682

0.824

0.023

0.940

150

1.552

97.532

0.807

0.043

0.988

1.5 g L–1

50

0.239

29.899

0.878

0.015

0.933

75

0.230

46.420

0.923

0.020

0.987

100

0.503

59.592

0.917

0.019

0.965

125

0.557

75.290

0.826

0.022

0.640

150

0.990

86.000

0.748

0.020

0.889

1.75 g L–1

50

0.172

26.141

0.838

0.013

0.819

75

0.150

40.123

0.736

0.008

0.580

100

0.283

52.808

0.890

0.019

0.942

125

0.460

64.998

0.784

0.023

0.949

150

0.696

76.047

0.824

0.021

0.845