This review has been prepared to help in assessing the technology options to treat wastes and reduce the biodegradable conten. It identifies options currently available in the UK and provides a brief technical description of each. The technologies considered are materials recovery facilities, composting, anaerobic digestion, incineration and gasification/pyrolysis. For each option the state of the technology and its current deployment in the UK and overseas is assessed. Issues likely to affect the implementation of the technology are identified and environmental considerations are discussed. Finally the contribution that the use of the technology will make to targets and policy objectives is examined.