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硝化细菌在不同温度下对氮素的去除效能研究
引用本文:张巍,赵军,郎咸明,李晓东,匡德舜. 硝化细菌在不同温度下对氮素的去除效能研究[J]. 环境科学与管理, 2010, 35(6): 83-86
作者姓名:张巍  赵军  郎咸明  李晓东  匡德舜
作者单位:1. 辽宁北方环境保护有限公司,辽宁,沈阳,110031;辽宁省环境科学研究院辽宁省流域污染控制重点实验室,辽宁,沈阳,1100313
2. 沈阳农业大学土地与环境学院,辽宁,沈阳,110161
基金项目:国家水体污染控制与治理科技重大专项资助项目 
摘    要:在15℃进行硝化细菌的富集,菌种的分离纯化,初筛,硝化效果的测定。对其中4株硝化效果较好的亚硝酸菌BY5、SY6和硝酸菌BX4、SX5进行生理生化指标鉴定,将其鉴定到属:前两者属于亚硝酸单胞菌属,后两者属于硝酸杆菌属。研究了不同温度对这4株菌株硝化效果的影响。结果表明,4株菌的最适合温度为25℃-30℃,亚硝酸菌的氨氮去除率可以达到74%,硝酸菌的亚硝酸盐去除率可以达到70%,在15℃时,亚硝酸菌和硝酸菌的氨氮去除率争亚脯酸盐去除率均可达到60%以上。

关 键 词:亚硝酸菌  硝酸菌  氨氮  亚硝酸盐氮

Study on the Removal of Nitrogen from Wastewater Using Nitrobacteria at Different Temperature
Zhang Wei,Zhao Jun,Lang Xianming,Li Xiaodong,Kuang Deshun. Study on the Removal of Nitrogen from Wastewater Using Nitrobacteria at Different Temperature[J]. Environmental Science and Management, 2010, 35(6): 83-86
Authors:Zhang Wei  Zhao Jun  Lang Xianming  Li Xiaodong  Kuang Deshun
Affiliation:1. Liaoning Beifang Environmental Protection Co. , Ltd, Shenyang 110031, China; 2. Liaoning Key Laboratory. of Basin Pollution Control, Liaoning Academy of Environmental Science, Shenyang 110031, China; 3. College of Land and Environment, Shenyang Agricultural University, Shenyang 110161, China)
Abstract:A process was developed which include bacteria enrichment, separation and purification of species, preliminary screening,analysis of digest result to measure of nitrite- bacteria's ability to remove nitrogen and ammonium, and the nitrate - bacteria's ability to remove nitrite at 15℃. The physiological and biochemical measurement were carried out on nitrite bacteria BY5, SY6 and nitrate BX4, SX5 who had good digest result of 4 strains. They were identified into two groups:the first two belong to Nitrosomonas, and the last two belong to Nitrobacter. The ecological factors were discussed which affect the digest capability of the 4 strains. The result shows that the best temperature for the 4 stains is 25℃ -30℃ ; and the efficiency of ammoniac nitrogen removal using ammonia -oxidizing bacterium can reach up to 74% when the reactor works smoothly; and the efficiency of nitrite nitrogen removal using nitrite - oxidizing bacterium can reach up to 70% when the reactor works smoothly. Efficiency of nitrogen removal using Nitrobacterium can reaeh up to 60% at 15℃.
Keywords:ammonia - oxidizing bacterium  nitrite - oxidizing bacterium  ammonia nitrogen  nitrite nitrogen
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