ORBIT e.V.

Stabilisation and Acceptance Criteria of Residual Wastes - Technologies and their Achievements in Europe

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Courtesy of ORBIT e.V.

ABSTRACT

The focus of the EU landfill directive is the reduction of biodegradable waste destined for landfill on a solely quantitative basis. Trials on the bio-mechanical treatment and its effect on the landfill behaviour show that the quality of the remaining organic fraction for landfilling should be considered because it is is more relevant than the quantity of biodegradable waste, in terms of the level of gaseous emissions from landfill. This leads to the incongruous situation where one could treat the waste to reduce the environmental impact of landfill, with respect to landfill gas emissions and leachate, by more than 90 % but still not achieve the EU landfill threshold values. This paper indicates how the change of biodegradability which is achieved during the mechanical and biological treatment (MBT) process can be taken into account when deterimining likely impact the disposal of processed material to landfill.

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