Initial Conc. (mg/L)

(dye/chitin: mg/g)

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Film and Intra-particle diffusion models

k₁

(mg・g⁻¹・min^1/2)

R²

k₂

(mg・g⁻¹・min^1/2)

R²

58 (19.33)^a

2.2595

0.9798

0.0253

0.8761

58 (14.50)^b

1.0496

0.5875

0.001

0.5875

58 (11.60)^c

0.9553

0.8717

0.011

0.7828

165 (55.00)^a

2.6921

0.7421

0.1855

0.9827

165 (41.25)^b

3.5274

0.9617

0.0461

0.7548

165 (33.00)^c

1.352

0.7226

0.017

0.9663

284 (94.67)^a

4.1732

0.8276

0.1719

0.9397

284 (71.00)^b

2.7384

0.9189

0.0991

0.9799

284 (56.80)^c

2.5635

0.9614

0.0704

0.8624

385 (128.33)^a

9.3235

0.9749

0.3457

0.9628

385 (96.25)^b

3.5211

0.9795

0.1583

0.9669

385 (77.00)^c

1.4478

0.8432

0.0972

0.8584