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Table 1 Kinetic parameters of benzene adsorption onto RHC

From: Removal of the hazardous, volatile, and organic compound benzene from aqueous solution using phosphoric acid activated carbon from rice husk

Model

Parameter

Value

Experimental date

q e,exp (mg/g)

365

 

K 1 (g/mg min)

38.2-10 -3

Frist-order

q e (mg/g)

316

 

R 2

0.92

Second-order

K 2 (g/mg min)

0.125-10 -3

q e (mg/g)

400

R 2

0.98

α(mg/g min)

4.4

Elovich

β (g/mg)

10.4-10 -3

R 2

0.9

K id (mg/g min 1/2 )

31.4

Intra-particle diffusion

C

114.7

R 2

0.94

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BMC Chemistry

ISSN: 2661-801X

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