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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