生活污水对成熟厌氧氨氧化颗粒污泥的影响

doi:10.11949/j.issn.0438-1157.20161681

化工学报 ›› 2017, Vol. 68 ›› Issue (5): 2066-2073.DOI: 10.11949/j.issn.0438-1157.20161681

生活污水对成熟厌氧氨氧化颗粒污泥的影响

高梦佳¹, 王淑莹¹, 王衫允², 彭永臻¹

1 国家工程实验室, 北京工业大学北京市水质科学与水环境恢复工程重点实验室, 北京 100124;
2 哈尔滨工业大学城市水资源与水环境国家重点实验室, 黑龙江哈尔滨 150090

收稿日期:2016-11-28 修回日期:2017-01-25 出版日期:2017-05-05 发布日期:2017-05-05
通讯作者: 王淑莹
基金资助:
国家自然科学基金项目（51478013）；北京市教委资助项目。

Impact of domestic sewage on mature anammox granular sludge

GAO Mengjia¹, WANG Shuying¹, WANG Shanyun², PENG Yongzhen¹

1 National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China;
2 State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China

Received:2016-11-28 Revised:2017-01-25 Online:2017-05-05 Published:2017-05-05
Supported by:
supported by the National Natural Science Foundation of China (51478013) and the Funding Projects of Beijing Municipal Commission of Education.

摘要/Abstract

摘要：

部分短程硝化和厌氧氨氧化技术的研究主要集中在高氨氮废水方面，对低氨氮浓度生活污水的研究相对较少。使经过除碳和部分短程硝化后的实际生活污水进入厌氧氨氧化UASB反应器，探究生活污水对成熟厌氧氨氧化颗粒污泥的影响。结果表明，当厌氧氨氧化UASB反应器的进水由配水变为生活污水后，反应器出水中氨氮浓度可降到5 mg·L^-1以下，亚硝态氮浓度可降到1 mg·L^-1以下，但是硝态氮的生成量高于理论值，可能是溶解氧被带入UASB反应器使硝化作用增强。UASB反应器内厌氧氨氧化污泥颜色由红色变为红黑色，T-EPS含量减少，PN/PS由1.13增大到3.66，沉降性变好，反应器内污泥中厌氧氨氧化菌Candidatus Brocadia所占比例由17.7%减少为14.4%，系统内AOB和NOB菌的含量增加，如果能够降低进入UASB反应器的溶解氧，有可能会减少出水硝氮，达到较好总氮去除效果。

关键词: 生活污水, 厌氧氨氧化, UASB, 颗粒污泥, EPS

Abstract:

The studies of partial nitrification and anaerobic ammonium oxidation(anammox) mainly focus on high ammoniacal concentration effiuents. A few research about domestic sewage of low ammonia nitrogen concentration was reported. The domestic sewage was pumped into the UASB reactor after carbon removal and partial nitrification to explore the impact of domestic sewage on mature anammox granular sludge. The results showed that the concentrations of NH₄⁺-N and NO₂^--N in effluent were below 5 mg·L^-1 and 1 mg·L^-1, respectively when the inflow became domestic sewage. But the NO₃^--N concentration was higher than the theoretical value because the increased dissolved oxygen enhanced nitrification. The color of anammox sludge in UASB reactor changed from light red to dark red. The T-EPS content of sludge decreased and the PN/PS value increased from 1.13 to 3.66. The settleability of the sludge turned better. The percentage of Candidatus Brocadia bacteria in the sludge decreased from 17.7% to 14.4%. The ammonia-oxidizing bacteria and nitrite-oxidizing bacteria contents in the sludge increased. If dissolved oxygen into the UASB reactor can be reduced, the NO₃^--N concentration in effluent may decrease and total nitrogen removal efficiency may be higher.

Key words: domestic sewage, anaerobic ammonium oxidation(ANAMMOX), UASB, granular sludge, EPS

中图分类号:

X703.1

高梦佳, 王淑莹, 王衫允, 彭永臻. 生活污水对成熟厌氧氨氧化颗粒污泥的影响[J]. 化工学报, 2017, 68(5): 2066-2073.

GAO Mengjia, WANG Shuying, WANG Shanyun, PENG Yongzhen. Impact of domestic sewage on mature anammox granular sludge[J]. CIESC Journal, 2017, 68(5): 2066-2073.

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生活污水对成熟厌氧氨氧化颗粒污泥的影响

Impact of domestic sewage on mature anammox granular sludge

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