A Comparative Study on Determination of Physico- Chemical parameters of Biosorption of Lead (II) by Aspergillus niger , NCIM 616 using AAS & ICPMS

Microorganisms can be important biosorbents for heavy metal remediation of contaminated soils and wastewaters.With different types and concentrations of heavy metals, strains display different resistance and removal abilities to the heavy metals. In the present study, biosorption of Pb(II) was carried out using Aspergillus niger NCIM 616 and also studied the effect of paramaters such as pH, temperature, incubation time, inial substrate concentration using AAS and ICPMS which were influenced more at the removal of Pb(II) and the comparision between the two instruments was also studied. The studies indicate that A.niger NCIM 616 is an effective biosorbent for Pb(II) removal. The maximum Pb (II) biosorption capacity has been found to be 60.7% Pb(II) of dry weight of biomass at an fungal dose of 20 mg/ dm 3 in contact time 8 days and optimum pH of 4.0 at temp 35 0 C. Accurate results of biosorption of pb(11) was obtained in ICPMS compared to AAS.