复合硝化菌群处理氨氮废水  

Digesting NH_4^+-N in wastewater with complex nitrobacteria community

作　　者：苏俊峰[1,2] 马放[2] 侯宁[2] 王弘宇[3] 李维国[2] 高珊珊[2] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [3]武汉大学市政工程系,湖北武汉430072

出　　处：《南京工业大学学报（自然科学版）》2009年第2期39-42,共4页Journal of Nanjing Tech University(Natural Science Edition)

基　　金：国家重点基础研究发展计划(973计划)资助项目(2004CB185050);黑龙江省重大科技攻关项目(CC05S30);陕西省自然科学基础研究基金(SJ08-ZT07)

摘　　要：从生物陶粒反应器中筛选出6株自养硝化细菌和2株异养硝化细菌,6株自养菌的硝化速率为1.03~1.25 mg/(L.d).异氧菌SHY4和SHY5在氨氧化培养基中经过12 d的好氧培养,氨氮最终去除率分别为69.73%和80.78%.亚硝酸盐质量浓度最终分别增加到0.124和0.206 mg/L,SHY5在亚硝化培养基中,经过12 d的好氧培养,亚硝酸盐质量浓度最终降低8.87 mg/L,硝酸盐出现积累质量浓度最终增加0.48 mg/L.采用从生物陶粒反应器中分离出的自养硝化细菌和异养硝化细菌建立序批式活性污泥反应器(SBR)进行了氨氮去除的试验研究,经过15~21 d的硝化处理,氨氮的平均去除率为64.38%.To analyze the differences between microbial communities of nitrifiers, 6 autotrophicnitrobacteria and 2 heterotrophic nitrobacteria were screened from bio-ceramic reactor, with the nitrifying rate of 6 autotrophicnitrobacteria of 1.03 -1.25 mg/（L.d）. 12 days after aerobic culture in ammonia oxidizing medium, the removal of NH4^＋ -N with SHY4 and SHY5 was 69.73% and 80. 78%, respectively. The final number of NO2^--N of SHY4 and SHY5 was 0. 26 mg/L and 0.45mg/L, respectively. 12 days after aerobic incubation, the concentration of NO2^- -N decreased to 8.87 mg/L in SHY5 nitrous acid medium, and accumulated nitrate led to 0. 48 mg/L. With the process of removing ammonia nitrogen by the heterotrophic nitrification bacteria and autotrophicnitrobacteria on the sequencing batch reactor （SBR）, the average ammonia nitrogen removal rate was 64.38% for 15 -21 days.

关 键 词：SBR反应器 硝化细菌 硝化特性 

分 类 号：X703[环境科学与工程—环境工程]