Effect of seasonal variation on the enhanced nitrification of suspended carriers

doi:10.16085/j.issn.1000-6613.2016.11.044

Chemical Industry and Engineering Progress ›› 2016, Vol. 35 ›› Issue (11): 3677-3682.DOI: 10.16085/j.issn.1000-6613.2016.11.044

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Effect of seasonal variation on the enhanced nitrification of suspended carriers

DUAN Yuqi^1,3, YUAN Jian^1,3, ZHENG Xingcan², SUN Yongli², CHEN Yi², GAO Chenchen², YOU Jia²

1. School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China;
2. North China Municipal Engineering Design and Research Institute, Tianjin 300074, China;
3. Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin 300384, China

Received:2016-04-11 Revised:2016-06-15 Online:2016-11-05 Published:2016-11-05

季节变化对悬浮填料强化硝化效果的影响

段玉琪^1,3, 员建^1,3, 郑兴灿², 孙永利², 陈轶², 高晨晨², 游佳²

1. 天津城建大学环境与市政工程学院, 天津 300384;
2. 中国市政工程华北设计研究总院有限公司, 天津 300074;
3. 天津市水质科学与技术重点实验室, 天津 300384

通讯作者: 员建,教授。E-mail:yuanjian63@126.com。
作者简介:段玉琪(1988-),男,硕士研究生。研究方向为水污染控制与资源化。E-mail:duanyuqi2011@sina.com。
基金资助:
国家水体污染控制与治理科技重大专项（2012ZX07313-001）。

Abstract

Abstract: In order to discuss effect of seasonal variation on the enhanced nitrification of suspended carriers in typical engineering project, static breaker test method as well as the high-throughput sequencing method was employed to study variation of nitrification rate and composition of nitrobacteria of the activated sludge system and the combined process of suspended carriers and activated sludge system (shortened form combined process) in autumn and winter, based on a sewage treatment plant which adopted a modified A²/O-MBBR process in Qingdao. The results showed that the specific ammonia oxidation rate (K_A) of the activated sludge system was generally greater than that of the specific nitrification rate (K_N). However, the K_A of combined process was roughly equivalent to that of K_N. The K_A and K_N both dropped as the temperature decreased in autumn and winter either for activated sludge system or combined process. K_A dropped slightly larger than K_N. Compared with activated sludge system, the K_A and K_N were improved by combined process in autumn and winter, especially the K_N in winter. Suspended carrier has significant enrichment ability for AOB and NOB, and better for NOB.

Key words: seasonal variation, suspended carriers, enhanced nitrification, AOB, NOB

摘要： 为探讨季节变化对典型工程中悬浮填料强化硝化的影响，以青岛市某采用改良A²/O-MBBR工艺的污水处理厂为研究对象，采用静态烧杯试验方法和高通量测序技术，对秋冬两季活性污泥系统与悬浮填料-活性污泥复合系统的硝化反应速率变化以及硝化菌构成进行研究。结果表明：活性污泥系统的比氨氧化速率（K_A）普遍大于其比硝化速率（K_N），悬浮填料-活性污泥复合系统的K_A与K_N则大体相当；无论是活性污泥系统还是悬浮填料-活性污泥复合系统，其K_A与K_N值均随秋冬季节温度下降而下降，且K_A下降幅度均大于K_N；与活性污泥系统相比，悬浮填料-活性污泥复合系统在秋冬季节能够在相当程度上提高活性污泥系统的K_A和K_N值，尤其在冬季，对K_N的提高程度更加明显；悬浮填料对AOB和NOB均有极强的富集作用，且对NOB的富集效果更好。

关键词: 季节变化, 悬浮填料, 强化硝化, 氨氧化细菌, 亚硝酸氧化细菌

CLC Number:

X703

DUAN Yuqi, YUAN Jian, ZHENG Xingcan, SUN Yongli, CHEN Yi, GAO Chenchen, YOU Jia. Effect of seasonal variation on the enhanced nitrification of suspended carriers[J]. Chemical Industry and Engineering Progress, 2016, 35(11): 3677-3682.

段玉琪, 员建, 郑兴灿, 孙永利, 陈轶, 高晨晨, 游佳. 季节变化对悬浮填料强化硝化效果的影响[J]. 化工进展, 2016, 35(11): 3677-3682.

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Effect of seasonal variation on the enhanced nitrification of suspended carriers

季节变化对悬浮填料强化硝化效果的影响

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