Table 1: Kinetic parameters for the biosorption of zinc on CH.

Pseudo-first-orderPseudo-second-order
(min−1) (th) (mgg−1) (ex) (mgg−1) (gmg−1 min−1) (th) (mgg−1)

−0.007130.1084.7250.4472 2.565 4.68 0.999