Biosorption of textile effluents and dyes

This research paper reports the biosorption potential of fungal isolates, Aspergillus flavus, Aspergillus wentti, Basidiomycetes and Acremonium kiliense to decolorize textile effluent and aqueous solution of synthetic dyes-Acid blue and Yellow MGR, used for cotton dyeing in textile industries. Screening was carried out and decolorization efficiency was determined on Potato Dextrose Agar and Yeast Glucose Peptone broth medium containing 100ppm of the dyes and 50 ml of the textile effluent. During batch decolorization process, fungal biomass weight and change in pH was also observed. Among fungal biomass weight, Aspergillus wentii showed increased dry weight (24.40 mg/ml), and in pH reduction, Aspergillus flavus showed maximum pH reduction (3.37). Maximum decolorization of Acid blue dye was achieved in 24h by Acremonium kiliense (99.58%). Among the strains used Acremonium kiliense was found to be very effective in removing the Acid blue dye (99.58%), Yellow MGR (86.11%) and textile effluent (90.98%) in PDA medium under shaking conditions. The research work reports that fungi can be used for bioremediation of dyes and is a viable alternative process for the treatment of textile effluent

Author(s): C. Agnes Mariya Dorthy 1 Rajeshwari Sivaraj1 and R Venckatesh

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