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Laboratory investigations into designated high-attenuation landfill liners

Abstract The present UK landfilling policy of total containment of waste is likely to present long-term problems in terms of liner integrity, so that additional leachate control measures may become a necessity. The design of economic liners from natural materials with high-attenuation characteristics that could serve as a back-up for containment sites is discussed. Laboratory column experiments are currently underway to test the performance of proposed liner recipes using a range of widely available materials. The results obtained should indicate the extent to which it is possible to design a liner material on the basis of simple measurements.