This paper presents the results of a research contract jointly funded by the
Environment Agency and ESART examining the residues of likely post-Landfill Directive waste
streams that will need to go to landfill and the time taken to achieve sufficient stabilisation such
that management controls can be removed. The first part of the project has identified a number
of processes that are likely to be adopted by the waste management industry in order to meet the
biodegradable waste diversion targets. Both leachate quality and landfill gas generation data has
been assessed for each residue stream. Forward modelling has been undertaken on these data
using LandSim2.5 within GoldSim to assess the likely period of management needed in order to
achieve equilibrium status