Performance of Two-Stage Upflow Anaerobic Sludge Blanket Reactor Treating Wastewater from Latex-Processing Factory
Publication: Journal of Environmental Engineering
Volume 139, Issue 1
Abstract
In this study, a relatively high-rate treatment (hydraulic retention time ) of latex-processing wastewater was achieved in a two-stage upflow anaerobic sludge blanket reactor. A maximum acid production rate of acetic acid was obtained when the acidogenic reactor was operated over a hydraulic retention time (HRT) of 4 hr. Total chemical oxygen demand (COD) and sulfate removal efficiencies of the system were 51.6 and 75.9%, respectively, when the methanogenic reactor was operated over an HRT of 24 h. The specific acidogenic activity of granular sludge in the acidogenic and methanogenic reactor varied between 1.33–2.02 g COD g volatile suspended solids , and the specific methanogenic activity ranged from 0.0078 to . Microbial diversity monitoring using the denaturing gradient gel electrophoresis technique revealed that there was more sulfate-reducing bacteria in both reactors than archea bacteria.
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Acknowledgments
The authors would like to express their acknowledgement to the Thailand Research Fund, the Office of the Higher Education Commission and the National Research University Project for the financial support. A grateful thank is also for Dr. Srisuda Dhamwichukorn for her helping hand in PCR-DGGE analysis and the Department of Microbiology, King Mongkut’s University of Technology Thonburi for providing the facilities for this study.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 139 • Issue 1 • January 2013
Pages: 141 - 146
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Sep 21, 2011
Accepted: Jun 11, 2012
Published online: Aug 3, 2012
Published in print: Jan 1, 2013
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