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Simultaneous Denitrification and Methanogenesis at Various ${NO_3}^--N/COD$ Ratios in an USB Reactor  

Park, Sang-Min (Department of Environmental Engineering, Chungbuk National University)
Jun, Hang-Bae (Department of Environmental Engineering, Chungbuk National University)
Park, Noh-Back (Department of Environmental Engineering, Chungbuk National University)
Oh, Gyu-Hwan (Department of Environmental Engineering, Chungbuk National University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.27, no.11, 2005 , pp. 1174-1179 More about this Journal
Abstract
Up-flow sludge blanket(USB) reactors were used to investigate the effects of N/C(${NO_3}^--N/COD$) ratio on simultaneous denitrification and methanogenesis processes. Without nitrate feeding, 84% of the influent COD was converted into methane. With the increase of N/C ratio, nitrogen gas increased while methane production decreased and stopped finally at the N/C ratio over 0.20. Influent nitrate was completely denitrified into nitrogen gas while nitrate removal efficiency dropped below 40% at N/C ratio of 0.40 because of deficiency in organic carbon. Fraction of COD utilized by denitrification increased at higher N/C ratios. Methanogenesis started to be effected at N/C ratio of 0.05, which could explain the competition for organic carbon between these microorganisms such as denitrifiers and methanogens, rather than inhibitory effect of nitrate and its intermediates. Critical N/C ratio for simultaneous denitrification and methanogenesis was found to be 0.20. Influent COD was removed over 92% by denitrification, methanogenesis and other biochemical reactions including cell growth at these N/C ratios.
Keywords
Up-flow Sludge Blanket(USB) Reactor; N/C(${NO_3}^--N/COD$) Ratio; Simultaneous Denitrification and Methanogenesis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Denitrification ability of anaerobic mixed culture at different <TEX>$COD/NO_3-N$</TEX> ratios /
[ Jun, H.B.;Park, S.M.;Park, N.B.;Kim, D.H. ] / Proc. 1st IWA- ASPIRE Conf.
2 Inhibition of methanogenesis in salt marsh sediments and whole-cell suspensions of methanogenic bacteria by nitrogen oxides /
[ Balderston, W.L.;Payne, W.J. ] / Appl. Envrion. Microbiol.
3 Effect of nitrogen oxides and dentirification by Pseudomonas stutzeri on acetotrophic methanogenesis by Methanosarcina mazei /
[ Manuel, C.;Nicolas, B.;Jean-Philippe, D.;Rene, M. ] / FEMS Microbiology Ecology   DOI
4 Standard methods for the examination of water and wastewater /
[ APHA ] /
5 The relationship between denitrifying bacteria and methanogenic bacteria in a mixed culture system of acclimated sludge /
[ Chen, K.C.;Lin, Y.F. ] / Water Res.   DOI
6 UBF 반응조를 이용한 단일 반응조에서의 탈질과 메탄화 /
[ 김구용 ] /
7 Effects of external carbon source and empty bed contact time on simultaneous heterotrophic and sulfur-utilizing autotrophic denitrification /
[ Lee, D.U.;Lee, I.S.;Choi, Y.D.;Bae, J.H. ] / Process biochemistry   DOI
8 Effect of nitrate, nitrite, NO and <TEX>$N_2O$</TEX> on methanogenesis and other redox processes in anoxic rice field soil /
[ Kluber, H.D.;Ralf, C. ] / FEMS microbiol.
9 COD/Nitrate-N 비가혐기성 슬러지에서 탈질과 메탄화에 미치는 영향 /
[ 박상민;전항배;최창옥;이준상 ] / 대한환경공학회지
10 Simultaneous methanogenesis and denitrification of pertreated effluents from a fish canning industry /
[ Mosquera-Corral, A.;Sanchez, M.;Campos, J.L.;Mendez, R.;Lema, J.M. ] / Water Res.   DOI
11 Contribution of methanogenesis to denitrification with an upflow filter /
[ Hanaki, D.;Polprasert, C. ] / J. of WPCF
12 Integrated removal of nitrate and carbon in an upflow anaerobic sludge blanket (UASB) reactor: Operating performance /
[ Hanne, V.H.;Birgitte, K.A. ] / Water Res.   DOI
13 Denitrification in anaerobic digesters : possibilities and influence of watsewater COD/N-NOx ratio /
[ Akunna, J.C.;Bizeau, C.;Moletta, R. ] / Environ. Technol.   DOI
14 Inhibitory effect of ionic nitrogen oxides on methanogenic sludge /
[ Chen, K.C.;Lin, Y.F. ] / Biochem. Engng.
15 Biodegradability and change of physical characteristics of particles during anaerobic digestion of domestic sewage /
[ Tarek, A.E.;Jesko, S.l.;Arie, D.K.;Harry, B.;Grietje, Z.;Gatze, L. ] / Water Res.   DOI
16 Nitrogen removal in an upflow sludge blanket(USB) reactor combined by acrobic biofiltration system /
[ Jun, H.B.;Park. S.M.;Park, J.K.;Choi, C.O.;Lee, J.S. ] / Water Sci. Technol.