Landfill gas capping liner system
OwnerKevin M. Bonzoinventor
Life of this patent
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Abstract
A gas capping liner system is described which encompasses a top channeled component and a bottom perforated layer component. The top channeled component has a plurality of alternating longitudinally extending channels. The channels are of two types, (1) structural for supporting the weight of overburden clay and topsoil above the liner and (2) gas-receiving, which permit the landfill gas to be collected. The perforated layer component is positioned such that the perforations are located above the gas-receiving channels.
Claims18
A flexible landfill gas capping polymeric liner capable of collecting a landfill gas from the entire surface area of a landfill which comprises:
- (a) a top channeled member having at least two parallel spaced longitudinal structural channels disposed within the channeled member and at least one gas receiving longitudinal channel for collecting the landfill gas, adjacent to and coextending with the structural channels;
- (b) a bottom sheet layer having a plurality of gas-permeable regions attached to a substantial portion of the channeled member such that the gas-permeable regions are positioned at an open end of the gas-receiving channel;
- and
- (c) an induced negative pressure means for transporting the collected landfill gas to a collection station.
The liner of claim i wherein the channeled member has an outwardly extending flap along its longitudinal axis for sealing an additional liner at each flap.
Dependencies are inferred from the claim text.