Abstract:To investigate the influence of DO concentration on the characteristics of catching bed reactor, the removal efficiency of COD, NH4+-N and TN were analyzed under the DO concentrations at 1.0~2.0mg/L, 2.0~3.0mg/L and 3.0~4.0mg/L, respectively. Meanwhile, ammonia-oxidizing bacteria (AOB) community and diversity in each reactor were examined using restricted fragment length polymorphism (RFLP), and sequencing of amoA genes. The results showed that higher COD and NH4+-N removal efficiency were received under different DO concentrations, NH4+-N removal efficiency increased with the DO concentration increase. The diversity of AOB was abundant in different DO concentrations, but the communities and species of AOB were effect greatly by DO concentration.
张岩, 朱敏, 刘焕光, 孙凤侠, 甘志明, 陈敬, 史杨, 谢杭冀. 利用RFLP分析DO对附积床系统中AOB群落结构的影响[J]. 中国环境科学, 2014, 34(9): 2387-2393.
ZHANG Yan, ZHU Min, LIU Huan-Guang, SUN Feng-Xia, GAN Zhi-Ming, CHEN Jing, SHI Yang, XIE Hang-Ji. Analysis of ammonia-oxidizing bacteria in catching bed reactor at different DO concentrations by RFLP.. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(9): 2387-2393.