Surfactant Conc. (wt%)	Correlation	K₁ (hr⁻¹)	R²
0.01	$\ln (q_{e} - q_{t}) = - 0.022 t + 0.488$	0.022	0.622
0.02	$\ln (q_{e} - q_{t}) = - 0.026 t + 0.325$	0.026	0.326
0.03	$\ln (q_{e} - q_{t}) = - 0.038 t + 0.736$	0.038	0.605
0.04	$\ln (q_{e} - q_{t}) = - 0.029 t + 0.620$	0.029	0.376
0.05	$\ln (q_{e} - q_{t}) = - 0.028 t + 0.791$	0.028	0.421
0.06	$\ln (q_{e} - q_{t}) = - 0.035 t + 1.048$	0.035	0.620
0.07	$\ln (q_{e} - q_{t}) = - 0.024 t + 0.724$	0.024	0.442
0.08	$\ln (q_{e} - q_{t}) = - 0.025 t + 0.785$	0.025	0.439
0.09	$\ln (q_{e} - q_{t}) = - 0.026 t + 0.998$	0.026	0.691
0.10	$\ln (q_{e} - q_{t}) = - 0.032 t + 1.189$	0.032	0.622