Effect of dissolved oxygen concentration on pipeline biofilm microbial community structure and effluent water quality

被引：0
|
作者：
Luo J. [1 ]
Jia R. [2 ]
Yu R. [3 ]
Yan L. [4 ]
Li G. [1 ]
Liang H. [1 ]
机构：
[1] State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin
[2] Jinan Water Supply and Drainage Monitoring Center, Jinan
[3] Heilongjiang Vocational College of Biology Science and Technology, Harbin
[4] Institute of Cell and Molecular Biology, Harbin University of Commerce, Harbin
来源：
Liang, Heng (hitliangheng@163.com) | 2016年 / Harbin Institute of Technology卷 / 48期
关键词：
454-pyrosequencing; Biofilm; Dissolved oxygen; Microbial community structure; Raw water;
D O I：
10.11918/j.issn.0367-6234.2016.08.004
中图分类号：
学科分类号：
摘要：
To improve the safety of distributing raw water, a BAR(Biofilm Annular Reactor)was constructed to simulate the distribution system and the effect of dissolved oxygen (DO) concentration on the effluent water quality and biofilm was studied. The 454-pyrosequencing technology was employed to analyze the diversity of biofilm in the reactor. Experimental results showed that the turbidity and the concentration of total iron, ammonia nitrogen decreased obviously with DO concentration increasing, while the concentrations of total nitrogen and CODMn changed slightly. The numbers of iron bacteria and sulfate-reducing bacteria reduced significantly, while the richness and diversity of the biofilm related bacteria (such as nitrifying bacteria) improved. So, increasing DO concentration can alleviate the pipeline corrosion and develop biofilm purifying water role. © 2016, Editorial Board of Journal of Harbin Institute of Technology. All right reserved.
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页码：24 / 30
页数：6
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