Landfill leachate collection and leak detection sump system

摘要

A landfill leachate collection and removal system in combination with a leachate and leakage detection system has been developed which includes a leachate collection sump intended to receive all of the rain which falls within the confines of the landfill. This rainfall may flow across the landfill floor to a sump or it may "leach" downward through waste into a drainage media and on to the sump. Further downward percolation of water is prevented by a first liner. The landfill system includes a leak detection sump system, intended to collect only that leachate which passes or leaks through the first liner. Both the collection and detection sumps are fabricated for examples, from high density polyethylene. Both sumps are perforated at definite elevations and both sumps rest in a concrete basin. A second liner lies between the sump bottoms and the concrete basin and the first liner is preferably welded to flanges on the sumps.