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Residual Waste Treatment

The Partner Boroughs currently have an average recycling and composting rate of 40%.  The target for 2020 is to have improved that average recycling and composting rate across the four boroughs to 50%.

The four SLWP boroughs wanted to find a more environmentally sustainable and cost-effective solution for dealing with non-recyclable waste.

But even if this ambitious target is achieved, the Partnership will still be left with almost 170,000 tonnes of residual waste every year that has not been sorted or placed out for recycling or composting by residents.

For decades, this residual ‘black bag’ rubbish was safely landfilled at the Beddington Landfill site in Sutton.  But the four SLWP boroughs wanted to find a more environmentally sustainable and cost-effective solution for dealing with non-recyclable waste.  So in May 2009, they embarked on a major procurement process to secure a contract for residual waste treatment.  This was the largest procurement project any of the Partner Boroughs had ever undertaken with a contract value running into hundreds of millions of pounds over the 25-year term of the contract.

The procurement process came to a conclusion on Monday 5 November 2012 when the London Borough of Croydon, on behalf of the Partnership, signed a contract with Viridor.  Virior’s solution to the challenge of dealing with the Partnership’s non-recyclable household waste was to construct and operate a state-of-the-art energy recovery facility (ERF).

Further details are available on our Beddington ERF page.