Biosorption of Cd2+ from Aqueous Metal Solutions by Cyanobacterial Biomass

This paper provides information on biosorption of Cd²⁺ by the cyanobacterium Aulosira fertilissima. Over all pattern of Cd²⁺ sorption rate seems to be dependent on the level of Cd²⁺ present in the external medium and length of exposure to metal. Cd²⁺ sorption was rapid during first five minutes thereafter the process slowed down and finally reached to saturation. A growth promoting pH (8.0) resulted more Cd²⁺ uptake than pH 6.0 and 10.0.