Table 1.

Summary of isotherm model parameters for Anabaena sphaerica biomass.

Metals	Freundlich model			Langmuir model
	Kf	1/n	R2	Qmax (mg/g)	1/b	R2
Cd	15.31	0.390	0.991	111.1	18.88	0.9801
Pb	28.28	0.2631	0.9798	121.95	19.19	0.9699