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Measuring organic carbon, nutrients and heavy metals in rivers receiving leachate from controlled and uncontrolled municipal solid waste landfills


Citation

Yusof, Norjan and Haraguchi, Akira and Hassan, Mohd Ali and Othman, Mohd Ridzuan and Wakisaka, Minato and Shirai, Yoshihito (2009) Measuring organic carbon, nutrients and heavy metals in rivers receiving leachate from controlled and uncontrolled municipal solid waste landfills. Waste Management, 29 (10). pp. 2666-2680. ISSN 0956-053X

Abstract / Synopsis

Since landfilling is the common method of waste disposal in Malaysia, river water is greatly exposed to the risk of contamination from leachate unless proper leachate management is carried out. In this study, leachates from three different types of landfills, namely active uncontrolled, active controlled and closed controlled, were characterized, and their relationships with river water chemistry were examined monthly for a year. The influence of leachate on river water chemistry from each type of landfill depended on many factors, including the presence of a leachate control mechanism, leachate characteristics, precipitation, surface runoff and the applied treatment. The impact of leachate from an active uncontrolled landfill was the highest, as the organic content, NH(4)(+)-N, Cd and Mn levels appeared high in the river. At the same time, influences of leachate were also observed from both types of controlled landfills in the form of inorganic nitrogen (NH(4)(+)-N, NO(3)(-)-N and NO(2)(-)-N) and heavy metals (Fe, Cr, Ni and Mn). Improper treatment practice led to high levels of some contaminants in the stream near the closed controlled landfill. Meanwhile, the active controlled landfill, which was located near the coastline, was exposed to the risk of contamination resulting from the pyrite oxidation of the surrounding area.


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Additional Metadata

Item Type: Article
Subject: Chemistry, Organic
Subject: Refuse and refuse disposal - Malaysia
Subject: Sanitary landfills - Malaysia
Divisions: Faculty of Biotechnology and Biomolecular Sciences
Publisher: Elsevier B.V.
Keywords: Organic carbon; Nutrients; Heavy metals; Leachate
Depositing User: Nida Hidayati Ghazali
Date Deposited: 24 Jul 2012 07:54
Last Modified: 04 Nov 2015 03:52
URI: http://psasir.upm.edu.my/id/eprint/15572
Statistic Details: View Download Statistic

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