Experimental Investigations on Adsorption of Reactive Toxic Dyes Using Hedyotis umbellate Activated Carbon

Table 4

Adsorption kinetic parameters.

	Pseudofirst order			Pseudosecond order			Intraparticle diffusion
(mg/l)	(exp)	(cal)
50 (BG4)	79.76	16.3	0.01	0.9986	0.0012	0.9032	1.81	0.9035
50 (AF)	28.69	10.47	0.012	0.9500	0.0009	0.9322	9.63	0.9945
100 (BG4)	44.92	10.82	0.031	0.9963	0.0005	0.9456	12.97	0.8867
100 (AF)	45.54	13.49	0.016	0.9597	0.0003	0.9004	6.05	0.9926