ANALYSIS ON CHANGE OF MICROBIAL COMMUNITY IN AAO BIOCHEMICAL SYSTEM OF A SEWAGE TREATMENT PLANT UNDER HIGH SALINITY ENVIRONMENT

YIN Hao-shuai; HUANG Kai; WANG Qing-qing; LI Shi-feng

doi:10.13205/j.hjgc.202103010

Volume 39 Issue 3

Jul. 2021

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YIN Hao-shuai, HUANG Kai, WANG Qing-qing, LI Shi-feng. ANALYSIS ON CHANGE OF MICROBIAL COMMUNITY IN AAO BIOCHEMICAL SYSTEM OF A SEWAGE TREATMENT PLANT UNDER HIGH SALINITY ENVIRONMENT[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(3): 68-74. doi: 10.13205/j.hjgc.202103010

Citation:

YIN Hao-shuai, HUANG Kai, WANG Qing-qing, LI Shi-feng. ANALYSIS ON CHANGE OF MICROBIAL COMMUNITY IN AAO BIOCHEMICAL SYSTEM OF A SEWAGE TREATMENT PLANT UNDER HIGH SALINITY ENVIRONMENT[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(3): 68-74. doi: 10.13205/j.hjgc.202103010

Citation:

YIN Hao-shuai, HUANG Kai, WANG Qing-qing, LI Shi-feng. ANALYSIS ON CHANGE OF MICROBIAL COMMUNITY IN AAO BIOCHEMICAL SYSTEM OF A SEWAGE TREATMENT PLANT UNDER HIGH SALINITY ENVIRONMENT[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(3): 68-74. doi: 10.13205/j.hjgc.202103010

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ANALYSIS ON CHANGE OF MICROBIAL COMMUNITY IN AAO BIOCHEMICAL SYSTEM OF A SEWAGE TREATMENT PLANT UNDER HIGH SALINITY ENVIRONMENT

doi: 10.13205/j.hjgc.202103010

1. School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China;
2. Shanghai Municipal Engineering Design Institute (Group) Co., Ltd, Shanghai 200092, China

Received Date: 2020-03-16
Available Online: 2021-07-19

Abstract

Abstract

In order to study the dominant microorganisms of activated sludge in AAO biochemical system at high Cl^- concentration, high-throughput sequencing technology was used to analyze the microbial structure of sludge in different periods. The results showed that the microbial community structure changed obviously when the Cl^- concentration increased from 1000 mg/L to 5000 mg/L. Persistent OTUs accounted for 90.59% of the total sequence. The relative abundance of Proteobacteria in the bacterial community was stable at 40% above. The relative abundance of Chiorobi increased from 6.11% to 16.13%. Generic level analysis of microorganisms showed that Methyloceanibacter (16.94%~27.44%) was the main organic matter removal bacteria under the condition of high salinity. Ignavibacterium (18.43%~26.78%) played an important role in the removal of sulfides. Dechloromonas (1.52%~3.05%), Nitrospirae (1.9%~8.84%) and Nitrosomonas (about 1%) was the main bacteria to remove nitrogen pollutants.
- high salinity,
- high throughput sequencing,
- microbial community change,
- activated sludge

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References(33)

References

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