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An eco-friendly approach for minimizing pollution of metal from municipal solid waste leachate in India

Author:
Awasthi, Abhishek Kumar, Pandey, Akhilesh Kumar, Khan, Jamaluddin
Source:
Journal of cleaner production 2017 v.140 pp. 1618-1625
ISSN:
0959-6526
Subject:
Aspergillus flavus, Aspergillus niger, Trichoderma harzianum, absorption, biosorption, cadmium, fungi, municipal solid waste, pH, pollution, spores, temperature, toxicity, India
Abstract:
Municipal solid waste (MSW) leachate management has become an important issue worldwide. The present study evaluated the potential of indigenous fungi for biosorption of Cd²⁺ from leachate. Three isolates—Trichoderma harzianum, Aspergillus niger and Aspergillus flavus were selected based on their ability to exclude the Cd²⁺ at the preliminary stage. Among these, Trichoderma harzianum was found to be an excellent fungus for cadmium absorption. The highest biosorption rate for Cd²⁺ was achieved under the conditions: temperature 45 °C (64.87%), pH 6.0 (64.78%) and spore concentration [10⁵ cfu ml⁻¹] (64.41%). The obtained data indicated that the developed fungal consortium is very efficient and effective for cadmium removal (72.41%), thereby demonstrating that it is a promising solution for removing toxic metals from MSW leachate.
Agid:
5573625