Table 2.

Optimum conditions of removal of CV, MG, Cd(II) and Pb(II).

Run	Variables				%Removal
	A (g)	B	C (mg L-1)	D (min)	CV			MG			Cd(II)			Pb(II)
					Exa	Prb	Ec	Exa	Prb	Ec	Exa	Prb	Ec	Exa	Prb	Ec
1	0.19	6	10	22	99.15	99.82	0.67	99.69	99.75	0.06	93.37	94.25	0.88	94.22	95.89	1.67
2	0.19	6	10	22	98.82	99.82	0.510	98.79	99.75	0.96	92.67	94.25	1.58	95.26	95.89	0.63
3	0.19	6	10	22	98.75	99.82	1.07	99.20	99.75	0.55	94.46	94.25	-0.21	93.85	95.89	2.04

^aExperimental, ^bPredicted, ^cError.