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Garbage enzyme-mediated treatment of landfill leachate: A sustainable approach

Nalladiyil, A and Prakash, P and Sivakumar Babu, GL (2023) Garbage enzyme-mediated treatment of landfill leachate: A sustainable approach. In: Bioresource Technology, 385 .

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Official URL: https://doi.org/10.1016/j.biortech.2023.129361


The study evaluates the soluble chemical oxygen demand (sCOD) removal efficiency from landfill leachate by treating it with four different garbage enzymes at two temperatures (room temperature 27 ± 3 °C and higher temperature 42 ± 3 °C). The four different garbage enzymes were prepared by fermenting fruit peels such as pineapple, banana, orange, and lemon peels and treated with landfill leachate at different mixing ratios of 5%, 10%, 15% and 20%. The results show that garbage enzymes made from orange (10%) and lemon (15%) have maximum sCOD reduction of 68.24% and 67.89%, respectively, at room temperature. The maximum solubilization was found in the pineapple and lemon garbage enzyme at 5% concentration. The samples kept at room temperature showed better solubilization and sCOD removal compared to the samples at higher temperatures. The study demonstrates that the garbage enzyme could be used to increase the bioavailability of organics in leachate.

Item Type: Journal Article
Publication: Bioresource Technology
Publisher: Elsevier Ltd
Additional Information: The copyright for this article belongs to the Elsevier Ltd.
Keywords: Garbage enzyme; Landfill leachate; Leachate treatment; Solubilisation
Department/Centre: Division of Mechanical Sciences > Centre for Sustainable Technologies (formerly ASTRA)
Division of Mechanical Sciences > Civil Engineering
Date Deposited: 03 Aug 2023 09:29
Last Modified: 03 Aug 2023 09:29
URI: https://eprints.iisc.ac.in/id/eprint/82550

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