Table 2.

Kinetic equation and obtained results for Cd²⁺ removal

	pseudo-first order		pseudo-second order
model	$log\left(q_e-q_t\right)=log{q}_e-\frac{k_1}{2.303}t$		$\frac{t}{q_t}=\frac{1}{k_2{q}_e^2}+\frac{1}{q_e}t$
Equation	Y = −0.0352x-2.3298	R2 = 0.798	Y = 0.9163 x + 0.9007	R2 = 0.999
Obtained Value	K1 = 0.081	qe = 4.7	K2 = 1.119	qe = 10.9