Removal of Reduced Species from the Effluent of UASB Reactor Treating Domestic Wastewater
Publication: Journal of Environmental Engineering
Volume 142, Issue 11
Abstract
This paper deals with an upflow anaerobic sludge blanket (UASB) reactor’s effluent post treatment under aerobic conditions. The kinetics of stripping and oxidation of sulfides (, and ) and purgeable organic compounds are determined. The effects of dissolved oxygen (DO) and temperature on stripping and oxidation kinetics are also investigated. Batch results indicate that the effluent quality [sulfide, chemical oxygen demand (COD) and purgeable organic carbon (POC)] can be improved by 50% with aeration at DO and at hydraulic retention time (HRT) of 30 min. The results obtained in the batch studies were confirmed in full size reactors. Moreover, it was observed that sulfides in absence of dissolved oxygen are removed by stripping rather than oxidation.
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References
APHA (American Public Health Association), AWWA (American Water Works Association), WEF (Water Environment Federation). (1998). “Standards methods for the examination of water and wastewater.” New York.
Arceivala, S. J. (2001). Wastewater treatment and pollution control, 2nd Ed., Tata McGraw Hill, New Delhi, India.
Chen, K. Y., and Morris, J. C. (1972). “Kinetics of oxidation of aqueous sulfide by .” Environ. Sci. Technol., 6(6), 529–537.
Davis, M., and Cornwell, D. (1991). Introduction to environmental engineering, 5th Ed., McGraw Hill, New York.
Eckenfelder, W. W. (1989). Industrial pollution control, McGraw Hill, Singapore.
Khan, A. A., et al. (2011a). “Sustainable options of post treatment of UASB effluent treating sewage: A review.” Resour. Conserv. Recycl., 55(12), 1232–1251.
Khan, A. A. (2012). “Post treatment of UASB effluent: Aeration and variant of ASP.” Ph.D. thesis, Indian Institute of Technology, Roorkee, India.
Khan, A. A., Gaur, R. Z., Lew, B., Mehrotra, I., and Kazmi, A. A. (2011b). “Effect of aeration on the quality of effluent from UASB reactor treating sewage.” J. Environ. Eng., 137(6), 464–472.
Lew, B., Belavski, M., Admon, S., Tarre, S., and Green, M. (2003). “Temperature effect on UASB reactor operation for domestic wastewater treatment in temperate climate regions.” Water Sci. Technol., 48(3), 25–30.
Sawyer, C. N., McCarty, P. L., and Parking, G. F. (2002). Chemistry for environmental engineering and science, Tata McGraw Hill Series, New Delhi, India.
Snoeyink, L. V., and Jenkins, D. (1980). Water chemistry, Wiley, New York.
Walia, R. (2007). “Polishing of effluent from UASB reactor: ORP as a monitoring parameter.” Ph.D. thesis, Indian Institute of Technology, Roorkee, India.
Zitomer, D. H., and Shrout, J. D. (2007). “High sulfate, high-chemical oxygen demand wastewater treatment using aerated methanogenic fluidized beds.” Water Environ. Res., 66(5), 924–929.
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Published In
Journal of Environmental Engineering
Volume 142 • Issue 11 • November 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Feb 24, 2015
Accepted: Feb 16, 2016
Published online: Jun 13, 2016
Published in print: Nov 1, 2016
Discussion open until: Nov 13, 2016
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