Contemporary environmental issues of landfill leachate: Assessment and remedies

Mukherjee, S. and Mukhopadhyay, S. and Hashim, M.A. and Sen Gupta, B. (2015) Contemporary environmental issues of landfill leachate: Assessment and remedies. Contemporary environmental issues of landfill leachate: assessment & remedies, 45 (5). pp. 472-590. ISSN 1064-3389, DOI

pre_2014_Crit_Rev_Contemporary_environmental_issues_of_landfill_leachate_assessment_&_remedies.pdf - Accepted Version

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AbstractLandfills are the primary option for waste disposal all over the world. Most of the landfill sites across the world are old and are not engineered to prevent contamination of the underlying soil and groundwater by the toxic leachate. The pollutants from landfill leachate have accumulative and detrimental effect on the ecology and food chains leading to carcinogenic effects, acute toxicity and genotoxicity among human beings. Management of this highly toxic leachate presents a challenging problem to the regulatory authorities who have set specific regulations regarding maximum limits of contaminants in treated leachate prior to disposal into the environment to ensure minimal environmental impact. There are different stages of leachate management such as monitoring of its formation and flow into the environment, identification of hazards associated with it and its treatment prior to disposal into the environment. This review focuses on: (i) leachate composition, (ii) Plume migration, (iii) Contaminant fate, (iv) Leachate plume monitoring techniques, (v) Risk assessment techniques, Hazard rating methods, mathematical modeling, and (vi) Recent innovations in leachate treatment technologies. However, due to seasonal fluctuations in leachate composition, flow rate and leachate volume, the management approaches cannot be stereotyped. Every scenario is unique and the strategy will vary accordingly. This paper lays out the choices for making an educated guess leading to the best management option.

Item Type: Article
Subjects: T Technology > T Technology (General)
T Technology > TD Environmental technology. Sanitary engineering
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr. Soumyadeep Mukhopadhyay
Date Deposited: 18 Dec 2014 04:06
Last Modified: 18 Dec 2014 04:06

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