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http://dx.doi.org/10.4491/KSEE.2013.35.5.381

Removal of Organic Matter, Nitrogen and Phosphorus in an UASB Sewage Treatment Process with Recycle of Aerated Bio-Filter Effluent  

Tian, Dong-Jie (Department of Environmental Engineering, Chungbuk National University)
Byun, Byeong-Su (Korea Environment Corporation)
Lim, Hyun-Suk (Department of Environmental Engineering, Chungbuk National University)
Jun, Hang-Bae (Department of Environmental Engineering, Chungbuk National University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.35, no.5, 2013 , pp. 381-387 More about this Journal
Abstract
Nitrogen and phosphorus removal was investigated in an UASB-ABF (Up-flow anaerobic sludge blanket - aerated bio-filter) anaerobic sewage treatment system. Successful removal of nitrogen and phosphorus with organic matters was possible in the UASB-ABF system from the results of 160 days operation with the influent raw domestic sewage. Removal efficiencies of organic matter (as TCOD) showed 64% in UASB without recycle of the ABF effluent, however, they increased to 92%, 95%, 96% with 120%, 180% and 240% recycle of the ABF effluent, respectively. Increasement of the organic matter removal was not prominent at recycle ratio above 180%. Apparent increase in TN removal occurred with recycle of the ABF effluent. TN removal efficiency was 18% without recycle, but it increased to 82% with 240% recycle of the ABF effluent. And stable nitrification above 95% was possible as a result of efficient removal of organic matter in the UASB with and without recycle of the effluent. Removal of both TP and $PO{_4}^{3-}$-P also increased remarkably with recycle of the effluent. Without recycle of the effluent, that is at strict anaerobic condition in UASB, TP was not removed, however, its removal efficiency increased to 51%, 63%, 71% at recycle ratios of 120%, 180%, 240%, respectively mainly at UASB.
Keywords
Anaerobic Sewage Treamtment; UASB; ABF; Nitrogen and Phosphorus Removal;
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  • Reference
1 Tai, C., Singh, K. and Grant, S., "A novel two stage integrated anaerobic-aerobic bio-treatment system for low strength wastewater," Proceeding of the 10th world congress on anaerobic digestion-anaerobic digestion, 2, 1051-1057(2004).
2 Von Sperling, M., Freire, V. H. and Chernicharo, C. A. L., "Performance evaluation of a UASB-Activated sludge system treating municipal wastewater," Water Sci. Technol., 43(11), 323-328(2001).
3 Motta, E. J., Silva, E., Bustillos, A., Padron, H. and Luque, J., "Combined anaerobic/aerobic secondary municipal wastewater treatment: pilot-plant demonstration of the UASB/Aerobic solids contact system," Environ. Eng., 133(4), 397-403(2007).   DOI   ScienceOn
4 Sousa, J. T. and Foresti, E., "Domestic sewage treatment in an upflow anaerobic sludge blanket-sequencing batch reactor system," Water Sci. Technol., 33(3), 73-84(1996).
5 Guimaraes, P., Melo, H., Cavalcanti, P. and Van Haandel, A., "Anaerobic-aerobic sewage treatment using combination UASB-SBR activated sludge," Environ. Sci. Technol., A38(11), 2633-2641(2003).
6 APHA, "Standard methods for examination of water and wastewater," 20th ed. Public Health Association, Washington, D. C., USA(1998).
7 Jun, H. B., Park, S. M., Park, J. K. and Lee, S. H., "Equalization characteristics of an upflow sludge blanket-aerated biofilter (USB-AF) system," Water Sci. Technol., 51(10), 301-311(2005).
8 Pavoni, J. L., Tenny, M. W. and Echelberger, Jr. W. F., "Bacterial extracellular polymers and biological flocculation," Water Pollut. Control Fed., 44(3), 414-431(1972).
9 Eriksson, L. and Alm, B., "Study of flocculation mechanism by observing effects of a complexing agent on activated sludge properties," Water Sci. Technol., 24(7), 21-28(1991).
10 Goodwin, J. A. S. and Forster, C. F., "A further examination into composition of activated sludge surface in relation to their settlement characteristics," Water Res., 19(4), 527-533(1985).   DOI   ScienceOn