The author would like to acknowledge the contributions of Dr Elena Vanguelova, and Dr Denise Lambkin who provided a large amount of the bibliographical work from r3. The author would also like to ackknwledge the valuable technical contributions of Mr Pat Wheeler and Miss Lousie Oldman of AEA Technology, and the editorial, web site and technical comments provided by:

  • Mr John Barton, University of Leeds

  • Mr Mark Shelton, Cambridge County Council

  • Members of the Chartered Institution of Wastes Management, the Biological Treatment Special Interest Group, via Miss Tina Benfield.

The author is grateful for the interest and funding by SITA Environmental trust, and support of the third party contributors: Viridor, Suffolk County Council, Norfolk County Council and Cambridgeshire County Council. Finally, the author would like to thank David Coupe for helping the whole thing get started.