Table 3: Kinetic parameters for Cr (VI) adsorption on the biosorbents.

Adsorbents (mg/g)Pseudo-first orderPseudo-second orderIntraparticle
diffusion
(mg/g) (mg/g)

PB80.50.013380.9251 820.9977.219
COPB96.20.017790.7294 980.9996.020
SOPB89.50.014760.9225 900.9987.624