Low landfill costs undercut soil remediation technologies

Cheap landfill is the main obstacle to widespread clean-up of contaminated soil, according to a report by Warren Spring Laboratory (WSL).1 In its review of land remediation technology, WSL also concludes that most contaminated sites will prove difficult to clean up with any single unit process and that a further integration of techniques is needed.

WSL's report focuses on treatment systems to remove, stabilise or destroy contaminants in soil. But for comparison, considerable attention is also paid to landfill and containment systems.

  • Landfill and containment: Landfilling of hazardous materials is the most widespread approach to site clean-up in the UK. Up to five million tonnes per year is disposed of in this way.

    The WSL report views this practice as "an inefficien

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