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PARIS - Lafarge's British Cauldon cement plant no longer needs to abstract fresh water from a nearby river, thanks to the creation of an artificial lake and a closed loop water recycling system.
The River Hamps is a unique natural site labelled a British ‘Site of Special Scientific Interest' and ‘Special Area of Conservation' and an EU ‘Special Conservation Area'. Each summer, parts of the river dry up on the surface and become subterranean, which can become an issue in times of drought.
In order to eliminate the need to draw water for its process from this river, Lafarge Cauldon Works (United Kingdom) "killed 2 birds with 1 stone": the lake created by the rehabilitation plan drawn up for part of its quarry was used as a fresh water reservoir. This artificial lake, which operates on a closed loop system, is fed by rainwater recovery and recycling of the site's used water. It has allowed the plant to be no longer dependent on natural fresh water resources. As a result, the 300,000m³ drawn from the River Hamps in 2009 was down to 0 in 2009!
This performance has been recognized by the Environment Agency which gave the Lafarge cement plant 2 awards: the Chief Executive's Award and also the Gold Award in the Water Save category.
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