Landfill leachate characterization for simulation of biological treatment with Activated Sludge Model No. 1 and Activated Sludge Model No. 3

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Abstract
Landfill leachates can be characterized correctly in terms of Activated Sludge Model No. 1 (ASM1) and Activated Sludge Model No. 3 (ASM3) variables. The wastewater characterization of leachate from a Luxembourg landfill was based on a physical‐chemical method combined with a BOD analysis for the COD fractions and on standard analysis for forms of nitrogen. The results show important differences compared with municipal wastewater. High amounts of organic matter with low biodegradability were found, as well as a high concentration of ammonium nitrogen. Based on average values, a generic ASM characterization is proposed for landfill leachates. It can be directly employed in the early stages of the simulation of landfill leachate treatment with activated sludge models.

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