Evaluation and discussion of liner system in landfills

Landfill is a primary method of ultimate disposition of municipal solid waste in many countries. The liner system of such disposal field is the key part of the whole system. This paper principally introduces the development of liner system in landfill site and its three main liner materials and analyses them comparatively, then points out that making use of GCL is the trend of the applicable liner in future. However, because of the contradiction between cost and effect, it is a prominent problem of current landfill technology in China whether we can really implement high standard liner system. Up to our country's situation, this paper suggests that selecting and designing liner systems should be based on local conditions.