序批式生物膜反应器中短程硝化的启动研究  

Study on start-up of shortcut nitrification in sequencing batch biofilm reactor

作　　者：韩冬妮 Handongni(Jiangsu sincere Engineering Consulting Co. , Ltd. ,Xuzhou ,Jiangsu 221008, China)

机构地区：[1]江苏诚智工程设计咨询有限公司,江苏徐州221008

出　　处：《污染防治技术》2017年第6期31-37,共7页Pollution Control Technology

摘　　要：相比与传统脱氮工艺,以短程硝化为基础的新型生物脱氮工艺无论在处理效果还是运行成本上都有着突出优势。亚硝化细菌生长缓慢、对外界条件的变化及其敏感,致使亚硝酸盐的生成速率成为了新型脱氮工艺的限制性因素。对于亚硝化活性污泥的驯化,确保高效、稳定的亚硝酸盐氮的积累的研究有着重要意义。SBR短程硝化35d之后趋于稳定状态,SBBR一周后亚硝态氮积累率就达到80%以上,短于SBR的启动过程。SBBR反应器中的接种污泥选自SBR的驯化的活性污泥,污泥本身含有大量的亚硝化细菌,SBBR的驯化过程在SBR的基础上增殖,SBBR反应器中的效果优于SBR。Compared with the conventional nitrogen removal process, a new biological nitrogen removal process based on short- cut nitrification has prominent advantages both in treatment effect and operation cost. The growth of nitrifying bacteria is slow and sensitive to the external conditions, so the rate of nitrite production becomes the limiting factor of the new nitrogen removal process. For the domestication of nitrosation activated sludge, it is important to ensure the efficient and stable accumulation of nitrite nitro- gen. After the SBR 35d shortcut nitrification to the steady state, SBBR weeks after nitrate accumulation rate is above 80%, the star- tup process is shorter than SBR. The inoculated sludge in the SBBR reactor is selected from the acclimated activated sludge of SBR, and the sludge itself contains a large number of denitrifying bacteria. The domestication process of SBBR is carried out on the basis of SBR, and the effect of SBBR reactor is better than that of SBR.

关 键 词：短程硝化 亚硝化 SBR反应器 SBBR反应器 

分 类 号：X703.1[环境科学与工程—环境工程]