Journal
CRITICAL REVIEWS IN BIOTECHNOLOGY
Volume 31, Issue 1, Pages 77-97Publisher
TAYLOR & FRANCIS LTD
DOI: 10.3109/07388551.2010.492206
Keywords
Bioreactor; leachate recirculation; landfill gas; aerobic; anaerobic; nitrogen transformation
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In recent years, due to an advance in knowledge of landfill behaviour and decomposition processes of municipal solid waste, there has been a strong thrust to upgrade existing landfill technologies for optimizing these degradation processes and thereafter harness a maximum of the useful bioavailable matter in the form of higher landfill gas generation rates. Operating landfills as bioreactors for enhancing the stabilization of wastes is one such technology option that has been recently investigated and has already been in use in many countries. A few full-scale implementations of this novel technology are gaining momentum in landfill research and development activities. The publication of bioreactor landfill research has resulted in a wide pool of knowledge and useful engineering data. This review covers leachate recirculation and stabilization, nitrogen transformation and corresponding extensive laboratory-and pilot-scale research, the bioreactor landfill concept, the benefits to be derived from this bioreactor landfill technology, and the design and operational issues and research trends that form the basis of applied landfill research.
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