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• W163989331 abstract "Research Article| March 01 2004 Nitrogen removal in an upflow sludge blanket (USB) reactor combined by aerobic biofiltration systems H.-B. Jun; H.-B. Jun 1Department of Environmental Engineering, Chungbuk National University, San 48 Kaeshindong Cheongju, Korea 361-763(E-mail: jhbcbe@chungbuk.ac.kr) E-mail: jhbcbe@chungbuk.ac.kr Search for other works by this author on: This Site PubMed Google Scholar S.-M. Park; S.-M. Park 2SUNJIN Engineering and Architecture, 43-3 2ga Yangpyungdong Yeongdeungpo-gu Seoul, Korea 150-102 (E-mail: psm37@hanmail.net) Search for other works by this author on: This Site PubMed Google Scholar J.-K. Park; J.-K. Park 3SUNJIN Engineering and Architecture, 43-3 2ga Yangpyungdong Yeongdeungpo-gu Seoul, Korea 150-102 (E-mail: papapa2@hanmail.net) Search for other works by this author on: This Site PubMed Google Scholar C.-O. Choi; C.-O. Choi 4SUNJIN Engineering and Architecture, 43-3 2ga Yangpyungdong Yeongdeungpo-gu Seoul, Korea 150-102 (E-mail: ccok10@empal.com) Search for other works by this author on: This Site PubMed Google Scholar J.-S. Lee J.-S. Lee 5SUNJIN Engineering and Architecture, 43-3 2ga Yangpyungdong Yeongdeungpo-gu Seoul, Korea 150-102 (E-mail: jslee2949@hanmail.net) Search for other works by this author on: This Site PubMed Google Scholar Water Sci Technol (2004) 49 (5-6): 191–197. https://doi.org/10.2166/wst.2004.0753 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Twitter LinkedIn Tools Icon Tools Cite Icon Cite Permissions Search Site Search nav search search input Search input auto suggest search filter All ContentAll JournalsThis Journal Search Advanced Search Citation H.-B. Jun, S.-M. Park, J.-K. Park, C.-O. Choi, J.-S. Lee; Nitrogen removal in an upflow sludge blanket (USB) reactor combined by aerobic biofiltration systems. Water Sci Technol 1 March 2004; 49 (5-6): 191–197. doi: https://doi.org/10.2166/wst.2004.0753 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex A new nitrogen removal process (up-flow sludge blanket and aerobic filter, USB-AF) was proposed and tested with real sewage. In the USB reactor, the larger part of influent organic and nitrogen matters were removed, and ammonia was effectively oxidized in the subsequent aerobic filter. The role of the aerobic filter was to convert ammonia into nitrate, an electron acceptor that could convert soluble organic matters into volatile suspended solid (VSS) in the USB. The accumulated as well as influent VSS in the USB was finally degraded to fermented products that were another good carbon source for denitrification. Total COD, settleable COD and soluble COD in the raw sewage were 325, 80 and 140mg/l, respectively. Most unsettleable COD as well as some SCOD in the influent was successfully removed in the USB. TCOD removal in the anoxic filter was by denitrification with the recycled nitrate. Low COD input to the aerobic filter could increase nitrification efficiency, reduce the start-up period and save the aeration energy in the USB-AF system. About 95% of ammonia was nitrified in the aerobic filter with no relation to the influent ammonia concentration. Denitrification efficiency of the recycled nitrate in the anoxic filter was about 85, 83, and 72% at recycle ratios of 100, 200, and 300%, respectively. T-N removal efficiency was 70% at recycle ratio of 300%. Anoxic filter, aerobic filter, nitrification and denitrification, USB-AF This content is only available as a PDF. © IWA Publishing 2004 You do not currently have access to this content." @default.
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• W163989331 title "Nitrogen removal in an upflow sludge blanket (USB) reactor combined by aerobic biofiltration systems" @default.
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