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Table 2

The kinetic model parameters of BTEX adsorption on the biochar

Pseudo-First-Order
Pseudo-Second-Order
BTEXqe (mg g1)k1 (h1)R2qe (mg g1)k2 (g mg1 h1)R2
Benzene 4.867 0.047 0.9998 7.095 0.005 0.9991 
Toluene 9.65 0.290 0.9966 10.88 0.037 0.9774 
Ethylbenzene 15.94 0.263 0.9967 18.09 0.019 0.9808 
Xylene 19.79 0.352 0.9965 22.07 0.023 0.9694 
Pseudo-First-Order
Pseudo-Second-Order
BTEXqe (mg g1)k1 (h1)R2qe (mg g1)k2 (g mg1 h1)R2
Benzene 4.867 0.047 0.9998 7.095 0.005 0.9991 
Toluene 9.65 0.290 0.9966 10.88 0.037 0.9774 
Ethylbenzene 15.94 0.263 0.9967 18.09 0.019 0.9808 
Xylene 19.79 0.352 0.9965 22.07 0.023 0.9694 

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

(Pseudo-First-Order and Pseudo-Second-Order).

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