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Effects of Hydraulic Retention Time and Cycle Time on the Sewage Treatment of Intermittently Aerated Nonwoven Fabric Filter Bioreactor  

Kim, Taek-Su (School of Environmental & Civil Engineering, Inha University)
Bae, Min-Su (School of Environmental & Civil Engineering, Inha University)
Cho, Kwang-Myeung (School of Environmental & Civil Engineering, Inha University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.27, no.1, 2005 , pp. 17-24 More about this Journal
Abstract
This study was carried out to investigate the removal efficiency of an intermittently aerated nonwoven fabric filter bioreactor fed continuously with domestic sewage. The hydraulic retention time(HRT) of the reactor was reduced from 12 hrs to 10 hrs to 8 hrs during an experimental period of 17 months. In order to search an optimum aeration/nonaeration time ratio for the nitrogen removal at each HRT, the cycle times of 3, 2 and 1 hr were tested at the aeration/nonaeration time ratio of 1. Then, the aeration/nonaeration time ratio was changed from 50 min/70 min to 40 min/80 min to 30 min/90 min at the cycle time of 2 hr which showed the best nitrogen removal. During the experimental period, the effluent SS concentration was always below 1.2 mg/L with more than 95% of BOD removal efficiency. The highest nitrogen removal of 90.1% was observed at the aeration/nonaeration time ratio of 40 min/80 min at the HRT of 10 hr. Oxidation-reduction potential could represent the degree of the nitrification and denitrification reaction in the reactor.
Keywords
Nonwoven Fabric Filter; Intermittent Aeration; Nitrification; Denitrification; Cycle Time;
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  • Reference
1 Li, B. and Bishop, P., 'Oxidation-reduction potential(ORP) regulation of nutrient removal in activated sludge wastewater treatmnet plants,' Water Sci. Technol., 46(1-2), 35-39(2002)   PUBMED
2 황도연, 강복춘, 조광명, '간헐 폭기식 부직포 여과막 생물반응조에서 폭기/비폭기 시간비가 하수의 유기물 및 질소제거에 미치는 영향', 대한환경공학회지, 25(2), 258 - 265 (2003)
3 Buisson, H., Cote, P., Praderie, M., and Paillard, H., 'The use of immersed membranes for upgrading wastewater treatment plants,' Water Sci. Technol., 37(9), 89-95(1988)
4 Tomlins, Z., Thomas, M., Keller, J., Audic, J.-M., and Urbain, V., 'Nitrogen removal in a SBR using the OGAR process control system,' Water Sci. Technol, 46(4-5), 125-130(2002)   PUBMED
5 Plisson-Saune, S., Capdeville, B., Mauret, M., Deguin, A., and Baptiste, P., 'Real-time control of nitrogen removal using three ORP bending-points: Signification, control strategy and results,' Water Sci. Technol, 33(1), 275-280(1996)   DOI   ScienceOn
6 임상호, 배민수, 조광명, '부직포 여과막 생물반응조를 이용한 하수의 처리', 한국물환경학회지, 19(1), 99-107 (2003)
7 Hiroyuki, A., Kenichi, K., Katsuto, I., Tetsuya, K., and Youichi, A., 'Intermittent aeration for nitrogen removal in small oxidation ditches,' Water Sci. Technol., 22(3-4), 131-138(1990)
8 Fuerhacker, M., Bauer, H., Ellinger, R., Sree, U., Sch-mid, H., Zibuschka, F., and Puxbaum, H., 'Approach for a novel control strategy for simultaneous nitrification/ denitrification in activated sludge reactors,' Water Res., 34(9), 2499-2506(2000)   DOI   ScienceOn
9 Peng, Y. Z., Gao, J. F., Wang, S. Y., and Sui, M. H., 'Use pH and ORP as fuzzy control parameters of denitrification in SBR process,' Water Sci. Technol., 46(4-5), 131-137(2002)   PUBMED
10 Paul, E., Plisson-Saune, S., Mauret, M., and Cantet, J., 'Process state evaluation of alternating oxic-anoxic activated sludge using ORP, pH and DO,' Water Sci. Technol, 38(3), 299-306(1998)   DOI   ScienceOn
11 조광명,'여과막 활성슬러지공법에 의한 유기성 폐수의 처리', 대한토목학회논문집, 28(6), 119-133 (1980)
12 APHA, Standard Methods for the Examination of Water and Wastewater, 20th Ed., Washington D.C., USA(1998)
13 Chaize, S. and Huyard, A., 'Membrane bioreactor on domestic wastewater treatment : Sludge production and modeling approach,' Water Sci. Technol, 23(7-9), 223-229(1998)
14 U.S. EPA., Wastewater Technology Fact Sheet-Sequencing Batch Reactors, Washington, D.C.(1999)
15 전병희, 김도환, 최은희, 배현, 김성신, 김창원, 'DO와 ORP를 이용한 축산폐수처리 SBR운전 제어', 한국물환경학회지, 18(5), 545-551(2002)
16 Chemchaisri, C, Yamamoto, K., and Vigneswaran, S., 'Household membrane bioreactor in domestic wastewater treatment,' Water Sci. Technol, 27(1), 171-178(1993)
17 환경부 고시 제 96-32호, 수질환경오염공정시험법(1996)
18 Choi, J. H., Dockko, S., Fukushi, K., and Yamamoto, K., 'A novel application of a submerged nanofiltration membrane bioreactor(NF MBR) for wastewater treatment,' Desalination, 146, 413-420(2002)   DOI   ScienceOn
19 Zipper, T., Fleischmann, N., and Haberl, R., 'Development of a new system for control and optimization of small wastewater treatment plants using oxidation-reduction potential,' Water Sci. Technol, 38(3), 307-314(1998)   DOI   ScienceOn