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WLWA begins procurement for 300,000 tonne residual waste contract

The West London Waste Authority (WLWA) plans to procure a residual waste treatment contract for the treatment of 300,000 tonnes of waste a year.

The WLWA is inviting bids for the transport, transfer station operation and contracts for any outputs generated by the process, such as compost. It is currently technology-neutral.

Sites will be offered for the bidders to use, but the WLWA added that it was open to bidders proposing their own sites.

WLWA director Jim Brennan told MRW: “Across west London, we are probably recycling 38-40% at the front end. But for the 60% of residual waste, a lot of it still goes to landfill and clearly that’s not sustainable in the future.”

The WLWA already has a contract to send waste to Viridor’s Lakeside energy-from-waste facility, but Brennan said this left 250,000-300,000 tonnes of residual waste that required a “different home”.

He would not be drawn on an estimated cost of the project, but added that the estimated cost of landfilling waste from the six London boroughs in the Authority over 25-30 years could be as much as £485m.

He said: “If we continue to landfill, it is an extra £3m-£3.5m a year on our budget on landfill tax alone.”

Eight bidders will be invited to develop outline solutions in August 2011. The preferred bidder will be selected in 2013 with a view to commencing the contract from 2014, which will run until 2038.

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