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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Gulati, R., Saxena, R. & Gupta, R. Fermentation waste of Aspergillus terreus: a potential copper biosorbent. World Journal of Microbiology and Biotechnology 18, 397–401 (2002). https://doi.org/10.1023/A:1015540921432
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DOI: https://doi.org/10.1023/A:1015540921432