In June 2007 work began on the supply of a Thermal Hydrolysis Process (THP) plant as part of the Bran Sands Advanced Digestion Project.

Bran Sands is one of Northumbrian Water’s largest sites, and the current raw sludge drying is maintenance and energy intensive. NWL therefore reviewed existing sludge treatment assets, which led to the recommendation of an advanced sludge digestion treatment centre at Bran Sands.

The centre will treat sludge from the existing wastewater treatment plant at Bran Sands and raw sludge delivered mainly as dewatered cake to the site from the southern half of NWL and can treat up to 40,000 dry tonnes of sludge per year.

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