污水短程硝化影响因素的对比分析  

Comparative Analysis of Factors Influencing Short-cut Nitrification in Wastewater Treatment

作　　者：付昆明[1] 廖敏辉 任奕 杨宗玥 仇付国[1] 姜姗 FU Kun-ming;LIAO Min-hui;REN Yi;YANG Zong-yue;QIU Fu-guo;JIANG Shan(Sino - Dutch R & D Centre for Future Wastewater Treatment Technologies, Key Laboratory of Urban Stormwater System and Water Environment < Ministry of Education > , Beijing University of Civil Engineering and Architecture, Beijing 100044, China)

机构地区：[1]北京建筑大学城市雨水系统与水环境教育部重点实验室中-荷污水处理技术研发中心,北京100044

出　　处：《中国给水排水》2019年第4期24-29,共6页China Water & Wastewater

基　　金：北京市教育委员会科技发展计划项目(SQKM201710016006);北京建筑大学市属高校基本科研业务费专项基金资助项目(X18214)

摘　　要：短程硝化的实现与维持,将会推动基于短程硝化发展起来的工艺得以工程化应用。对不同研究者就此不一致的结论进行了阐述,并对各影响因素促进短程硝化的可行性进行了对比分析。要实现短程硝化,同时控制中温条件、游离氨、污泥龄是最容易的,其次是同时控制中温条件和污泥龄,另外还可同时控制中温条件和游离氨或溶解氧在生物膜污泥中实现短程硝化。常温条件下,仅仅依靠较低的溶解氧浓度无法维持短程硝化的稳定,必须配合其他因素的控制。各因素按可行性的高低及稳定性的好坏综合排序依次分别为中温条件、游离氨、污泥龄、溶解氧、间歇曝气、游离亚硝酸、pH值。To achieve and maintain the short-cut nitrification will promote the process which based on the short-cut nitrification to project application. This paper elaborated on the inconsistent conclusions regarding the short-cut nitrification among different researchers,and made a comparative analysis on the feasibility of various factors promoting the short-cut nitrification. To achieve short-cut nitrification,measures such as controlling the medium temperature condition,free ammonia,sludge retention time simultaneously were the easiest way,followed by controlling the medium temperature condition and sludge retention time simultaneously. In addition, controlling the medium temperature condition and free ammonia or dissolved oxygen simultaneously could achieve short-cut nitrification in the biofilm sludge.Under the normal temperature conditions,the stability of short-cut nitrification could not be maintained if it only relied on the lower dissolved oxygen. Therefore,the lower dissolved oxygen must be coordinated with other factors to ensure short-cut nitrification. The comprehensive sequence were followed by the medium temperature condition,free ammonia,sludge retention time,dissolved oxygen,intermittent aeration,free nitrous acid,pH according to the feasibility and the stability of the various factors.

关 键 词：短程硝化 厌氧氨氧化 亚硝酸菌 硝酸菌 游离氨 游离亚硝酸 

分 类 号：TU992[建筑科学—市政工程]