Bioremoval of an azo textile dye,Reactive Red 198, by <Emphasis Type="Italic">Aspergillus flavus</Emphasis> |
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Authors: | Akbar Esmaeili Mona Kalantari |
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Institution: | (1) Department of Chemical Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran;(2) Department of Chemistry, North Tehran Branch, Islamic Azad University, Tehran, Iran |
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Abstract: | The objective of this paper was to study the potential for bioremoval of a textile dye, Reactive Red 198 (RR198), by a fungus
isolated from soil collected from an effluent disposal area near a textile company. The fungus was identified as Aspergillus flavus, and its use as a low-cost live-cell biomass for the biodegradation of RR198 from contaminated water was investigated using
batch studies. The effects of time, dye concentration, and pH as variable factors were examined in the process. Results showed
that bioremoval of RR198 by A. flavus increased to over 84.96% with increasing time until equilibrium was reached after a period of 24 h. A low pH was the most
effective, as were lower levels of dye concentration. The decolorization was determined by the decrease in the absorption
maximums of this dye by UV–visible spectroscopy. A. flavus was shown to be an efficient fungus for removal of RR198 from wastewater. |
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