Patent ID: 7537415
Filing Date: 2009-05-26
Classification: B09B,B09C

Abstract:
1. A system for injecting liquid into a portion of solid waste in a landfill which comprises: (a) a layer constructed of a permeable material having a hydraulic conductivity and having a first surface and an opposed second surface forming a plane of the layer, wherein the layer is configured to be positioned on the portion of solid waste in the landfill so that at least one surface of the layer is adjacent the solid waste; (b) at least one perforated pipe positioned inside the layer or adjacent to one of the first or second surfaces of the layer and parallel to the plane of the layer, wherein liquid is injected into the perforated pipe and moves from the perforated pipe into the layer and travels through the layer and into the portion of solid waste adjacent the surface of the of the layer; and (c) a plurality of sensors mounted in the layer to measure at least one characteristic of the liquid in the layer, wherein the characteristic comprises liquid flow rate in the layer.