Author： Gulati Ruchi Saxena R.K. Gupta Rani
Publisher： Springer Publishing Company
ISSN： 0959-3993
Source： World Journal of Microbiology and Biotechnology, Vol.18, Iss.5, 2002-07, pp. : 397-401
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Abstract
Aspergillus terreus mycelial waste produced during lipase production showed good copper biosorption capacity (160–180 mg Cu2+ biosorbed/g dry biomass). The sorption process followed fast kinetics and the absorption behaviour could be explained by a Freundlich isotherm model. The process was temperature independent and unaffected by the presence of many competing ions in a multi-ion situation. Maximum biosorption occurred between pH 4 and 5. The biomass could efficiently remove copper from mine effluents. Moreover the loaded biomass could easily be desorbed by a simple acid wash and could be reused a number of times without a decline in its biosorbing potential, thus making the process cost-effective.
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