Decolorization of Simulated Textile Effluent by Phanerochaete chrysosporium and Aspergillus fumigatus A23

• Published in: Nature environment and pollution technology Vol. 15; no. 3; p. 825
• Main Authors: Dharajiya, Darshan, Shah, Mitali, Bajpai, Bhakti
• Format: Journal Article
• Language: English
• Published: Karad Technoscience Publications 01.09.2016
• Subjects: Acids; Adsorption; Aspergillus fumigatus; Biodegradation; Bioremediation; Dyes; Effluents; Environmental impact; Fungi; Phanerochaete chrysosporium; Pollution; Solanum tuberosum; Textile industry; India
• ISSN: 0972-6268; 2395-3454

Synthetic dyes are released in the effluent from a wide variety of industries such as textile, tannery, packed food, pulp and paper and paint, thus threatening various forms of life. Bioremediation is always considered as cost effective and eco-friendly way for the treatment of recalcitrant dyes and effluents. Non-white rot fungus Aspergillus fumigatus A23 and white rot fungus Phanerochaete chrysosporium were used for comparative study of decolorization of individual dyes and simulated textile effluent (STE). Both the fungi could effectively decolorize STE under optimized conditions of medium (potato dextrose agar medium), temperature (40°C for A. fumigatus A23 and 30°C P. chrysosporium), pH (4.0 for A. fumigatus A23 and 5.0 for P. chrysosporium) and agitation (100 rpm for A. fumigatus A23 and P. chrysosporium). The decolorization of STE by A. fumigatus A23 and P. chrysosporium was 86% and 62% respectively after 7d incubation. The key mechanisms involved in dye removal by the fungus appeared to be adsorption and absorption and the biotransformation occurred only after absorption of the dye. Analysis of samples before and after treatment with fungus using TLC indicated the biotransformation of dye.