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Seasonal variations in municipal landfill leachate quality

Gabriela Kalčíková (Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia)
Milada Vávrová (Faculty of Chemistry, Brno University of Technology, Brno, Czech Republic)
Jana Zagorc-Končan (Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia)
Andreja Žgajnar Gotvajn (Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia)

Management of Environmental Quality

ISSN: 1477-7835

Article publication date: 9 August 2011

Abstract

Purpose

The aim of this work is to compare quality of leachates from regional municipal landfill in different seasons (dry, snowy/rainy) during a three-year monitoring period due to the fact that quality of landfill leachate can rapidly change under different conditions.

Design/methodology/approach

Raw leachates were sampled prior to biological treatment at different periods of the year (November 2007, March 2008, May 2008, March 2009, and January 2010) to detect the changes in their composition due to different physico-chemical conditions at the site (temperature, moisture, etc.). Leachates were physico-chemically characterized and the toxicity of chosen leachates was assessed by a battery of biotests.

Findings

Most of the investigated raw leachates exceed Slovenian effluent limits. Samples from March 2008 and March 2009 generally showed higher concentration of measured parameters and also higher toxicity. It has been confirmed that the physico-chemical parameters of leachates usually decrease during rainy/snowy seasons, in addition to the change in toxicity.

Originality/value

This paper demonstrates the need to evaluate the physico-chemical parameters and toxicity of landfill leachate during different seasons of the year to achieve an appropriate assessment of its environmental impact.

Keywords

Acknowledgements

The authors are grateful to student Petra Oman for her effort during experimental work and to organization Klub Žena Soroptimist Ljubljana, Slovenia for its financial support.

Citation

Kalčíková, G., Vávrová, M., Zagorc-Končan, J. and Žgajnar Gotvajn, A. (2011), "Seasonal variations in municipal landfill leachate quality", Management of Environmental Quality, Vol. 22 No. 5, pp. 612-619. https://doi.org/10.1108/14777831111159734

Publisher

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Emerald Group Publishing Limited

Copyright © 2011, Emerald Group Publishing Limited