[好氧条件下处理氮氧化物生物滤池的启动及影响因素]
[Start-up and affecting factors of biofilter for treatment of NO(x) under aerobic conditions].
作者信息
Li Hui-Ying, Huang Shao-Bin, Lu Le, Wang Rui-Min, Huang Hui-Xing
机构信息
Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Ministry of Education, College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China.
出版信息
Huan Jing Ke Xue. 2011 Jul;32(7):1881-7.
An optimized aerobic denitrifying bacteria was applied to a biofilter for the removal of NO(x). The removal process of NO(x) was investigated, and the relationship between environmental factors and NO(x) removal efficiency as well as the NO(x) transfermechanism under aerobic conditions are discussed. The results show that the biofilter finished start-up after 26 days and the presence of oxygen has no evident negative effect on the efficiency of NO(x) removal. Mainly happening at the middle and under part of the biofiltration system, the removal of NO(x) get a high efficiency of 93.6% at the EBRT of 59s and the inlet NO(x) concentration of 286.4 mg/m3 with 10% O2. A special biomembrane system was formulated by nitrobacteria, facultative denitrifying bacteria and aerobic denitrifying bacteria in the biofiltration system.
将一株优化后的好氧反硝化细菌应用于生物滤池以去除氮氧化物。研究了氮氧化物的去除过程，并讨论了环境因素与氮氧化物去除效率之间的关系以及好氧条件下氮氧化物的转移机制。结果表明，生物滤池在26天后完成启动，氧气的存在对氮氧化物的去除效率没有明显的负面影响。氮氧化物的去除主要发生在生物过滤系统的中部和下部，在气液停留时间为59秒、进口氮氧化物浓度为286.4毫克/立方米、氧气含量为10%的条件下，去除效率高达93.6%。生物过滤系统中由硝化细菌、兼性反硝化细菌和好氧反硝化细菌构成了一个特殊的生物膜系统。
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