MIDLANDS-BASED environmental engineering contractor Demco is supplying a leachate pipe system for a slightly unusual landfill remediation project in Oxfordshire.
Fossilised Megalosaurus and Brontosaurus footprints, formed in the tropical mudflats around Oxfordshire more than 165M years ago, have been found at the Ardley landfill site. When owner and manager Viridor Waste Management decided to return the site to agricultural use, it decided to preserve the footprints as part of the remediation programme.
Demco's heavy duty HDPE PN10 slotted and perforated pipes form part of the basal leachate collection system and abstraction well. The scheme is being built by contractor Barton Plant, which is laying the mixture of DN180mm and DN315mm pipes in a herringbone pattern. These will be linked using Demco's flush lock system, which the firm says allows easy assembly without the need for expensive welding plant or skilled labour, so minimising installation time and cost.
The company is also supplying two specially designed and manufactured telescopic wells to withstand up to 25% shrinkage and subsequent movement of the landfill.