Title: Column studies aiming at identification of suitable filter materials for pollutant removal from landfill leachate

Authors: P. Kangsepp, B-M. Svensson, L. Martensson, D. Rosenquist, W. Hogland, L. Mathiasson

Addresses: Department of Analytical Chemistry, Lund University, P.O. Box 124, Lund SE-22100, Sweden. ' Department of Mathematics and Science, Kristianstad University, Kristianstad SE-291 88, Sweden. ' Department of Mathematics and Science, Kristianstad University, Kristianstad SE-291 88, Sweden. ' Laqua Treatment AB, Hojarodsvagen 103, Degeberga SE-297 95, Sweden. ' School of Pure and Applied Natural Sciences, Kalmar University, Kalmar SE-391 82, Sweden. ' Department of Analytical Chemistry, Lund University, P.O. Box 124, Lund SE-22100, Sweden

Abstract: Landfill leachate contains a complex mixture of inorganic and organic pollutants, which need to be removed before they pollute the environment. Different filter media (peat mixed with either carbon-containing ash, polyurethane waste, or wood pellets) were investigated with respect to their possibility to simultaneously and at low initial concentrations remove metals, polar and non-polar organic compounds. The mixture of peat and carbon-containing ash was found to be the best medium. Reduction in leachate of phenolic substances was 96%, of PBDEs was over 98%, of DOC 40% and of important metals as Cu, Pb and Sn 60%, 90% and 93%, respectively.

Keywords: landfill leachate; peat; carbon-containing ash; wood pellets; polyurethane; organic compounds; inorganic pollutants; filter materials; pollutant removal; environmental pollution; solid waste management.

DOI: 10.1504/IJEWM.2008.021856

International Journal of Environment and Waste Management, 2008 Vol.2 No.6, pp.506 - 525

Available online: 06 Dec 2008 *

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