The most critical components of a landfill closure cap are the barrier layer and the drainage layer. The barrier (sealing) layer can be low-permeability soil (clay) and/or made from geosynthetic clay liners (GCLs).
Archive | Capping
Landfill Designers and Specifiers Beware of Blocked Drainage Layer Geotextiles
By admin on 24th August 2009 in Capping, Construction Quality Assurance, Geotechnical, Landfill Contractors
Inferior geo-composite membranes which should both provide a low permeability membrane to cap a landfill and replace drainage stone otherwise needed above the low permeability layer are being offered which don’t do the job. It is essential to drain the interface and prevent development of a slip plane at the membrane on even quite gentle […]
US EPA Landfill Capping
Landfill Capping is the most widespread type of remediation since it is in general less pricey than other technologies and actually manages the human being and environmental risks allied with a remediation place. In this article we provide the basics of capping according to the US EPA.
How to Design a Permanent Geological Exposure in a Landfill
One of the most common locations for landfills are worked out quarries and quarries suitable for landfill are an increasingly valuable resource for this reason. In a growing number of cases suitable sites include rare geological exposures of mineral bearing rock, or strata of regional importance which need to be kept exposed after landfilling for […]
Site Waste Management Plans Now Needed for Landfill Development and Restoration Projects
Although the following topic is not directly a landfill CQA issue we thought that it would be of real interest to many of our readers. Compulsory site waste management plans (SWMPs) for construction projects over £300,000 in value, have been a legal requirement in England since April 2008, and are therefore needed for landfill works contracts. […]
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