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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/4916
Title: Fecal coliform removal from the effluent of UASB reactor through diffused aeration
Authors: Khan A.A.
Gaur R.Z.
Tyagi V.K.
Lew B.
Diamantis V.
Kazmi, Absar Ahmad
Mehrotra I.
Published in: Desalination and Water Treatment
Abstract: Although UASB systems treating municipal wastewater generally remove fecal coliform (FC) by ~ one order of magnitude, the effl uent still contains concentrations higher than the WHO standard for unrestricted irrigation. In this study, the effect of continuous diffused aeration on the removal of FC was examined. The diffused aeration system was operated at different hydraulic retention times (60, 30 and 15 min) and dissolved oxygen (DO) concentrations (5-6 and 1-2 mg/l). The removal of FC was affected by the applied HRT and DO. Optimum results were obtained at HRT and DO equal to 60 min and 5-6 mg/l respectively, with FC removal of approximately 2 log (97%). The mechanisms responsible for FC die-off were the pH and oxidation reduction potential (ORP) of the medium. ¬© 2012 Desalination Publications.
Citation: Desalination and Water Treatment(2012), 39(43891): 41-44
URI: https://doi.org/10.1080/19443994.2012.669156
http://repository.iitr.ac.in/handle/123456789/4916
Issue Date: 2012
Publisher: Taylor and Francis Inc.
Keywords: Diffused aeration
Dissolved oxygen
Fecal coliform removal
Municipal wastewater
ORP
UASB
ISSN: 19443994
Author Scopus IDs: 7404909843
42661150500
36776464800
6701632125
22957011400
6701514485
6701761343
Author Affiliations: Khan, A.A., Department of Civil Engineering, Indian Institute of Technology, Roorkee, India
Gaur, R.Z., Department of Civil Engineering, Indian Institute of Technology, Roorkee, India
Tyagi, V.K., Department of Civil Engineering, Indian Institute of Technology, Roorkee, India
Lew, B., The Volcani Center, Institute of Agriculture Engineering, Bet Dagan, 50250, Israel
Diamantis, V., Department of Environmental Engineering, Democritus University of Thrace, Xanthi, Greece
Kazmi, A.A., Department of Civil Engineering, Indian Institute of Technology, Roorkee, India
Mehrotra, I., Department of Civil Engineering, Indian Institute of Technology, Roorkee, India
Funding Details: We are very much thankful to Prof. Charles N. Haas, L.D. Betz Professor of Environmental Engineering, Drexel University, Philadelphia PA for critical suggestions and Petroleum Conservation Research Association, New Delhi for providing financial grant for this research.
Corresponding Author: Khan, A. A.; Department of Civil Engineering, Indian Institute of Technology, Roorkee, India; email: dee.abid@gmail.com
Appears in Collections:Journal Publications [CE]

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