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Table 2 Pseudo-first and second order constants for chromium by MSSP and BPP

From: Bio-sorption for effective removal of chromium(VI) from wastewater using Moringa stenopetala seed powder (MSSP) and banana peel powder (BPP)

Metal ion

qexp

Pseudo first order kinetic model

Pseudo second order kinetic model

qcal (mg/g)

k1 (min−1)

R2

qcal(mg/g)

k2 (g/mgmin)

R2

Cr-MSSP

1.308

1.449

0.0484

0.939

1.477

0.051

0.998

Cr-BPP

1.4645

0.7870

0.023

0.897

1.631

0.038

0.994