Gloucestershire County Council has more than halved the list of bidders for its £171M waste PFI from ten firms to four.
Left to compete for the contract are:
* Complete Circle a consortia of John Laing, Keppel Seghers and United Utilities
* Cory Environmental Management
The companies have already put forward ideas to deal with between 150,000 and 175,000 tonnes of waste, which is expected to come online each year from 2015. So far, suggested technologies suitable to process the waste include mechanical biological treatment - including anaerobic digestion, composting and biodrying - and energy from waste plants.
Cabinet member for waste Cllr Stan Waddington said: While we arent allowed to go into detail about the bids at this stage, I can say that they propose a variety of technologies, including different types of MBT as well as energy from waste.
Javelin Park, a site south of Gloucester, has been earmarked to build the facility but in some cases final processing takes place outside of Gloucestershire.
Bidders must submit detailed plans by late Spring 2010.
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