Table 1 Parameters of non-linear kinetics models for adsorption of lead by pressmud.

From: Adsorptive removal of lead from wastewater using pressmud with evaluation of kinetics and adsorption isotherms

Kinetic Model

Parameter

Values

Pseudo-first-order

qe

5.79

K1

1.02

R2

0.98

RMSE

0.03

SSE

0.01

Pseudo-second-order

qe

6.00

1/k2qe

0.34

R2

0.97

RMSE

0.09

SSE

0.05

Elovich

(1/v) In (uv)

5.10

(1/v)

0.29

R2

0.94

RMSE

0.17

SSE

0.17

  1. qe: adsorption capacity at equilibrium (mg g−1), k1: rate constant (min−1), R2: coefficient of determination, k2: rate constant (g mg−1 min−1), u: initial rate (mg g−1 min−1), v: desorption constant (g mg−1), RMSE: root means square error, SSE: sum of square error.
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