Article

Investigations into the landfill behaviour of pretreated wastes

Department of Civil Engineering, Aligarh Muslim University, Aligarh 202002, India.
Waste Management (Impact Factor: 3.16). 04/2012; 32(7):1420-6. DOI: 10.1016/j.wasman.2012.03.016
Source: PubMed

ABSTRACT Mechanical-biological treatment of municipal solid waste has become popular throughout the UK and other parts of Europe to enable compliance with the Landfill Directive. Pretreatment will have a major influence on the degradation and settlement characteristics of the waste in landfills owing to the changes in the composition and properties of the wastes. This paper presents and compares the results of long term landfill behaviour of the UK and German MBT wastes pretreated to different standards. The gas generating potential, leachate quality and settlement characteristics are highlighted. The results reveal that it is possible to achieve stabilisation of MBT waste within a year and the biogas yield and leachate strength of German MBT waste was significantly reduced compared with the UK MBT waste. The settlement resulting from mechanical creep is more significant than the biodegradation induced settlement in both cases.

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    • "The L 0 values of simulator tests were between 10 and 194 L/kg dry waste for a variety of waste compositions. The L 0 values of five simulator tests were below 30 L/kg dry waste, because of mechanically-biologically pretreatment of biodegradable waste (tests 8 and 9, Siddiqui et al. 2012), incomplete waste biodegradation (test 14, Staub et al. 2013) or because of the high percentage of non-biodegradable waste (tests 2 and 3, Fei et al. 2013). "
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