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16:48 Mar 21, 2007
English to French translations [PRO] Environment & Ecology
English term or phrase:retained
The treatment for decontaminating the former gas land soil at the northern end of the site works was undertaken by introducing nutrients to heaps of soil. The treatment system is known as the Ex-Situ Biopile Process. This process involves installing a waterproof surface where the soil is deposited, and an air extraction system to ensure optimal treatment conditions in the soil pile (Biopile). The nutrients encourage the growth of micro-organisms within the heavily contaminated soil to break down the hydro-carbons left behind by the site’s industrial past. Bioremediation solutions are typically at the lower end of cost for land remediation approaches and significantly lower than landfill prices for hazardous waste.
A water reservoir was also present to accumulate and manage process water. 100,000 cu m of soil in total was retained and treated on site. The re-use of soil has meant a reduced need for clean imported material.