PENGZhao?xu,LIYing,LITing-mei,et al.Study on the Community Distribution of Periphytic Microorganisms at Sewage Outlet of a WWTP[J].China Water & Wastewater,2022,38(8):60-64.
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Study on the Community Distribution of Periphytic Microorganisms at Sewage Outlet of a WWTP

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第38卷 Number: 第8期 Page: 60-64 Column: Date of publication: 2022-04-17
Author(s):
PENG　Zhao?xu1;  LI　Ying1;  LI　Ting-mei2;  NIU　Yong-qing1;  LIU　Ming-hui1;  QIN　Jing1;  LIU　Ao1;  YU　Lu-ji3
（1. School of Water Conservancy and Engineering， Zhengzhou University， Zhengzhou 450001， China； 2. Zhengzhou University Multi-functional Design and Research Academy Co. Ltd.， Zhengzhou 450002， China； 3. School of Ecology and Environment， Zhengzhou University， Zhengzhou 450001， China）
Keywords:
sewage outlet;  runoff supply;  microbial community;  ecological restoration
Abstract:
In order to investigate the impact of municipal tail water recharged to runoff on aquatic ecology, high-throughput sequencing was tested on the periphytic microorganisms at sewage outlet, and the relationship between microbial community and effluent quality was analyzed. The results showed when the average effluent COD, NH4+-N and TP reached level Ⅳ standard for surface water, the outlet was enriched with pathogenic bacteria such as Flavobacterium, Acinetobacter, Burkholderia and common bacteria in activated sludge such as ammonia oxidizing bacteria Nitrosomonas, denitrifying bacteria Lysobacter, phosphorus accumulating bacteria Enterobacte. The average effluent COD and TN were negative correlated with Enterobacter abundance (r were -0.931 and -0.909 respectively), and the average effluent TN was positively correlated with the abundance of Xanthomonadaceae (r was 0.964). The vicinity of outlet is not conducive to accumulate denitrifying bacteria such as Dechloromonas, thus it is difficult to reduce the NO3--N in the receiving water by microorganisms in the tail water.
Last Update: 2022-04-17