王旭东

教授    博士生导师    硕士生导师

个人信息 更多+
  • 教师拼音名称: wangxudong
  • 所在单位: 环境与市政工程学院
  • 学历: 博士研究生
  • 办公地点: 陕西省膜分离技术研究院201
  • 性别: 男
  • 学位: 博士学位
  • 在职信息: 在职

论文成果

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Characteristics and mechanism of autotrophic nitrogen removal in a single SBR

发布时间:2024-08-09
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所属单位:
环境与市政工程学院
发表刊物:
The 2nd IWA Asia Pacific Regional YWP Conference
关键字:
中文关键字:厌氧氨氧化,自养反硝化,亚硝化,Nitrosomonas菌,计量关系,英文关键字:Anammox; autotrophic denitrification; nitritation;
摘要:
A lab-scale sequencing batch reactor treating synthetic NH4+ rich wastewater showing high N losses was examined for microbial and nitrogen conversion characteristics. 80.8 ± 5% of N removal efficiency and highest volume loading of 0.493kg N m–3 d–1 were achieved, while the ratio of nitrate produced to ammonium consumed was only 0.09 (n=60), lower than that in CANON process. In batch tests, the biomass showed good anaerobic and aerobic ammonium-oxidizing activity (10.13 and 6.71 mg NH4+–N g–1 VSS h–1, respectively) but no nitrite-oxidizing activity. Fluorescence in situ hybridization analysis revealed that aerobic ammonium-oxidizing genus Nitrosomonas dominated the community, and anaerobic ammonium-oxidizing bacteria were also detected. Nitrogen mass balance and stoichiometry were employed to show that ammonium was mainly removed (71.92%) by coaction of nitritation and Anammox, and 25.84% of N losses were attributed to nitritation-denitrification.
备注:
王磊
合写作者:
孙婷
第一作者:
王志盈,杨永哲,王旭东,王磊,吕永涛
论文类型:
期刊论文
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发表时间:
2009-11-01