'Squeeze' technique works for leachate pipe

摘要

Waste Recycling Group (WRG) has a 4.5km-long,180mm-diameter HDPE discharge pipeline, built 10 years ago, which sends treated landfill leachate at Stewartby Landfill site, Bedfordshire, to a public sewer. Flow through the pipeline has been gradually decreasing over the years with fouling and/or blockage considered to be the major contributing factor.