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In situ microbial treatment of landfill leachate using aerated lagoons

Mehmood, MK and Adetutu, E and Nedwell, DB and Ball, AS (2009) 'In situ microbial treatment of landfill leachate using aerated lagoons.' Bioresource Technology, 100 (10). pp. 2741-2744. ISSN 0960-8524

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Abstract

The aim of this study was to assess the efficiency of leachate treatment by microbial oxidation in four connected on-site aerated lagoons it a landfill site. The landfill site was found to be in an ageing methanogenic state, producing leachate with relatively low COD (mean value 1740 mg l(-1)) and relatively high ammonium concentrations (mean value 1241 mg l(-1)). Removal of COD averaged 75%, with retention times varying from 11 to 254 days. Overall 80% of the N load was removed within the plant, some by volatilisation of ammonium. Microbial community profiling of the water from each lagoon showed a divergent community profile, presumably a reflection of the nutrient status in each lagoon. In municipal solid waste landfills under similar conditions, leachate treatment through a facultative aerobic system in which sequential aerobic and anaerobic microbial oxidations occurred can readily be achieved using a simple two-lagoon system. suggesting this technology can be economic to install and simple to run.

Item Type: Article
Uncontrolled Keywords: Landfill leachate; Aeration lagoons; Microbial treatment of leachate; Effluent treatment
Subjects: Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Science and Health
Faculty of Science and Health > Life Sciences, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 06 Oct 2011 15:05
Last Modified: 06 Jan 2022 13:20
URI: http://repository.essex.ac.uk/id/eprint/892

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