LEAD BIOSORPTION BY A MODERATELY HALOPHILE PENICILLIUM SP. ISOLATED FROM ÇAMALTI SALTERN IN TURKEY

41994

Owing the importance of biosorption of heavy metals by different organisms, a moderately halophilic fungus isolated from Çamalti saltern was first time investigated for its potential for biosorption. Different heavy metals namely, lead [(Pb(NO3)2], nickel (NiCl2), chromium (K2CrO4), zinc (ZnCl2), cadmium (CdCl2.H2O), copper (CuSO4) and cobalt (CoCl2.6H2O) were screened for resistance and the most tolerated heavy metal by Penicillium sp. was chosen in biosorption assay. The heavy metal tolerance of Penicillium sp. was observed in order of lead cadmium chromium copper nickel zinc cobalt. Different concentrations (145 mg/l, 644 mg/l and 1388 mg/l) of lead biosorption was investigated and increasing the metal ion concentration resulted in decreased uptake for lead. Freundlich isotherm was more effective than Langmuir isotherm for lead biosorption by Penicillium sp. The binding sites for lead attributed to the amine groups on the biomass surface were verified by Fourier Transform Infra Red (FTIR) analysis. A halotolerant Penicillium sp. having high resistance to lead, could be suggested for use as an agent for abatement of lead pollution in hypersaline conditions or in waters of fluctuating salinity, as well as in non-saline environments after further studies of optimization.

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Biosorption , Lead , Penicillum sp. , Moderately halophile

Anadolu University Journal of Science and Technology C - Life Sciences and Biotechnology

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Anadolu University Journal of Science and Technology C - Life Sciences and Biotechnology