A Novel Fungal-based Approach For The Sustainable Treatment Of Landfill Leachate
Auteurs : Lad Isha M. . Patel Bina B. . Tipre Devyani R. . Prajapati Anjali V. .
Résumé
Leachate, a wastewater generated from a solid waste landfill, usually falls in the high-strength wastewater category, containing both organic and inorganic pollutants. In this study, an attempt was made to utilize the Aspergillus and Mucor fungi for leachate treatment, as fungi possess excellent recalcitrant compound degradability for wastewater treatment. Their faster growth, enzyme versatility, nutrient removal abilities, and biosorption properties make them promising technologies for future research and applications. Three identical lab scale reactors of 3 L were used with different fungal species i.e. Aspergillus (RA), Mucor (RB), and combination of Aspergillus and Mucor (RC). Stainless steel pall rings were packed in each reactor which occupied 35% of reactor volume, which provided the support for the growth of the fungi and for abundant surface area for fungal growth. The reactors were investigated simultaneously for leachate treatment. The entire experiments have been carried out using various leachate dilutions, starting from 10% to 100% (with 20% interval), with a hydraulic retention time (HRT) of 7 h with recycling. The reduction of various pollution parameters, specifically COD and TSS, was measured in a batch scale. The reactor with Mucor fungi performed superior to other two at all dilution level. Hence, fungi can be provided sustainable and economical option for pre-treatment of leachate.
Mots clés
Leachate ; fungi ; Aspergillus ; Mucor ; stainless steel pall rings ; biosorption
