Treatment of Landfill Leachate by a Combined Anaerobic Fluidized Bed and Zeolite Column System
Publication: Journal of Environmental Engineering
Volume 131, Issue 5
Abstract
The use of a combined anaerobic fluidized bed and zeolite fixed bed system in sanitary landfill leachate treatment was investigated. Anaerobic treatability studies were successfully performed in the anaerobic fluidized bed reactor. The chemical oxygen demand (COD) removal was attained up to 90% with increasing organic loading rates as high as after of operation. Good biogas production yield of biogas per gram removed COD with methane content of 75% was obtained. The attached biomass concentration increased along the column height from bottom to top, and its mean value was found after of operation. The anaerobically treated landfill leachate was further treated by a zeolite fixed bed reactor. While excellent ammonia removal was obtained with the untreated zeolite, the regenerated zeolites showed higher performance. Consequently, this combined anaerobic and adsorption system is an effective tool to remove high COD and high ammonia in landfill leachate.
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Acknowledgments
The writers wish to acknowledge the financial support provided by ITU Research and Development Center (Project No. 1947) and the Scientific and Technical Research Council of Turkey (Project No. TAG-Ç005 (10I008)).
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 131 • Issue 5 • May 2005
Pages: 815 - 819
Copyright
© 2005 ASCE.
History
Received: Apr 8, 2003
Accepted: Jul 13, 2004
Published online: May 1, 2005
Published in print: May 2005
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