Table 1.

Kinetic model constants for copper biosorption by C . lacerata at pH 6 and 25°C

Kinetic model	Constants of model
First-order Lagergren	q e = 3.37 mg/g	k’ = 11.05 × 10−2 h−1	R’ 2 = 0.8233	p < 0.05
Pseudo second-order	q e = 6.76 mg/g	k P = 4.68 × 10−4 g/mg · h	R P 2 = 0.9958	p < 0.05