標題: Simultaneous partial nitrification, anaerobic ammonium oxidation and denitrification (SNAD) in a full-scale landfill-leachate treatment plant
作者: Wang, Chih-Cheng
Lee, Po-Heng
Kumar, Mathava
Huang, Yu-Tzu
Sung, Shihwu
Lin, Jih-Gaw
環境工程研究所
Institute of Environmental Engineering
關鍵字: Partial nitrification;ANAMMOX;Denitrification;SNAD;Landfill-leachate;PCR
公開日期: 15-三月-2010
摘要: The occurrence of simultaneous partial nitrification, anaerobic ammonium oxidation and denitrification (SNAD) observed in a single Partially aerated full-scale bioreactor treating landfill-leachate is reported in his paper. At present, the full-scale bioreactor is treating an average leachate flow of 304 m(3) d(-1) with a sludge retention time between 12 and 18 d. The average COD, NH(4)(+)-N and NO(3)(-)-N concentrations at the upstream end of the bioreactor. i.e., influent, are 554, 634 and 3 mg L(-1), respectively; whereas no NO(2)(-)-N is detected in the influent. The percentage removals of COD and NH(4)(+)-N in the bioreactor were 28% and 80%, respectively. A nitrogen mass balance approach was adopted to analyze the performance of SNAD in the full-scale bioreactor. The total nitrogen (TN) removal by combined partial nitrification and anaerobic ammonium oxidation is 68% and the heterotrophic denitrification contributes to 8% and 23% of TN and COD removals, respectively. The red granule in the bioreactor was analyzed by using fluorescence in situ hybridization and polymerase chain reaction. The results of both analytical methods confirm the presence of anaerobic ammonium oxidizing bacteria as the predominant species along with other Planctomycete-like bacteria. Overall, the SNAD process offers the simultaneous removals of nitrogen and COD in the wastewater. (C) 2009 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.jhazmat.2009.10.052
http://hdl.handle.net/11536/5719
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2009.10.052
期刊: JOURNAL OF HAZARDOUS MATERIALS
Volume: 175
Issue: 1-3
起始頁: 622
結束頁: 628
顯示於類別:期刊論文


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