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Table 3

The kinetic model parameters of BTEX adsorption on the biochar

Elovich model
Intra-Particle Diffusion model
BTEXα (mg g1 h–1)β (g mg1)R2KI (mg g1 h1/2)IR2
Benzene 0.526 1.152 0.9193 0.750 0.000 0.7424 
Toluene 3.988 1.909 0.8614 1.022 4.563 0.6034 
Ethylbenzene 1.717 3.312 0.8848 1.797 6.875 0.6391 
Xylene 4.174 3.519 0.8106 1.836 10.88 0.5341 
Elovich model
Intra-Particle Diffusion model
BTEXα (mg g1 h–1)β (g mg1)R2KI (mg g1 h1/2)IR2
Benzene 0.526 1.152 0.9193 0.750 0.000 0.7424 
Toluene 3.988 1.909 0.8614 1.022 4.563 0.6034 
Ethylbenzene 1.717 3.312 0.8848 1.797 6.875 0.6391 
Xylene 4.174 3.519 0.8106 1.836 10.88 0.5341 

T = 25 °C, initial BTEX concentration = 10 mg/L, biochar dosage = 0.01 g.

(Elovich model and Intra-Particle Diffusion model).

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