https://scholars.lib.ntu.edu.tw/handle/123456789/409500
標題: | Improving total nitrogen removal in aeration basin retrofitted with entrapped biomass | 作者: | Chao Y.-N. Lin J.-H. Ng K.-K. Wu C.-H. Hong P.-K.A. Lin C.-F. |
關鍵字: | Activated sludge process; Anaerobic; Anoxic; Bioplates; Entrapped biomass; Total nitrogen removal | 公開日期: | 2014 | 出版社: | IWA Publishing | 卷: | 69 | 期: | 7 | 起(迄)頁: | 1558-1564 | 來源出版物: | Water Science and Technology | 摘要: | This study presented a method to upgrade existing aeration tanks to remove total nitrogen (TN). Bioplates carrying entrapped biomass were installed in an aeration basin to create anoxic/anaerobic zones where denitrification can proceed. In a reactor that coupled bioplates containing entrapped biomass (equivalent to as high as 7,500 mg/L of biomass) and an activated sludge suspension (at mixed liquor suspended solids of 1,300-2,400 mg/L), nitrification efficiency exceeded 95% for an influent wastewater containing 21-54 mg/L of NH3-N. In all cases amended with alkalinity and with or without added methanol as an electron source, TN removal was between 60 and 70%. The results demonstrated anoxic/oxic or anaerobic/anoxic/oxic processes could be incorporated in a conventional aeration basin, requiring no substantial modifications of the vessel and operation, and thus providing improved treatment in terms of nitrogen removal in the conventional suspendedgrowth process. © IWA Publishing 2014. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899417330&doi=10.2166%2fwst.2014.053&partnerID=40&md5=691a64ae77301957539b0841937b1fff https://scholars.lib.ntu.edu.tw/handle/123456789/409500 |
ISSN: | 2731223 | DOI: | 10.2166/wst.2014.053 | SDG/關鍵字: | Activated sludge process; Suspensions (fluids); Activated sludge; Anaerobic; Anaerobic/anoxic/oxic process; Anoxic; Bioplates; Influent wastewaters; Mixed liquor suspended solids; Total nitrogen removal; Biomass; methanol; nitrogen; nitrogen; activated sludge; aeration; alkalinity; anoxic conditions; biomass; denitrification; electron; methanol; nitrogen; pollutant removal; activated sludge; alkalinity; article; biomass; bioreactor; denitrification; electron; nitrification; suspended particulate matter; waste component removal; waste water; biomass; devices; isolation and purification; water management; Biomass; Bioreactors; Denitrification; Nitrification; Nitrogen; Water Purification |
顯示於: | 化學工程學系 |
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