EFFECT OF FREE AMMONIA ON PHOSPHORUS REMOVAL EFFICIENCY AND MICROBIAL COMMUNITY STRUCTURE IN AN EBPR SYSTEM

NIU Yongjian; DONG Kun; NIU Hongliang; XIN Mingxing; LI Weiwei; SUN Hongwei

doi:10.13205/j.hjgc.202210004

Volume 40 Issue 10

Oct. 2022

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NIU Yongjian, DONG Kun, NIU Hongliang, XIN Mingxing, LI Weiwei, SUN Hongwei. EFFECT OF FREE AMMONIA ON PHOSPHORUS REMOVAL EFFICIENCY AND MICROBIAL COMMUNITY STRUCTURE IN AN EBPR SYSTEM[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(10): 24-31. doi: 10.13205/j.hjgc.202210004

Citation:

NIU Yongjian, DONG Kun, NIU Hongliang, XIN Mingxing, LI Weiwei, SUN Hongwei. EFFECT OF FREE AMMONIA ON PHOSPHORUS REMOVAL EFFICIENCY AND MICROBIAL COMMUNITY STRUCTURE IN AN EBPR SYSTEM[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(10): 24-31. doi: 10.13205/j.hjgc.202210004

Citation:

NIU Yongjian, DONG Kun, NIU Hongliang, XIN Mingxing, LI Weiwei, SUN Hongwei. EFFECT OF FREE AMMONIA ON PHOSPHORUS REMOVAL EFFICIENCY AND MICROBIAL COMMUNITY STRUCTURE IN AN EBPR SYSTEM[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(10): 24-31. doi: 10.13205/j.hjgc.202210004

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EFFECT OF FREE AMMONIA ON PHOSPHORUS REMOVAL EFFICIENCY AND MICROBIAL COMMUNITY STRUCTURE IN AN EBPR SYSTEM

doi: 10.13205/j.hjgc.202210004

1. Gansu Research Institute of Light Industry Co., Ltd, Lanzhou 730000, China;
2. Lanzhou Jiaotong University, Lanzhou 730000, China;
3. Yantai University, Yantai 264000, China

Received Date: 2022-01-11

Abstract

Abstract

Based on 16S rRNA genes-Illumina MiSeq high-throughput sequencing, this study aimed to investigate the effects of FA concentrations of 0, 0.2, 1, 4, 10, 15, 25, 50 mg/L on phosphorus removal efficiency and bacterial community structure of an EBPR system. Results indicated that when the concentration of FA was 0.2 mg/L, it promoted the phosphorus removal of the EBPR system; and when the concentration of FA was 1~50 mg/L, it inhibited the phosphorus removal of the EBPR system. The relative abundance of Proteobacteria increased with the increase of FA concentration. The relative abundance of Gammaproteobacteria was positively correlated with the FA concentration at the class level. At the genus level, the relative abundance of Tetrasphaera was more consistent with the effect of FA on phosphorus removal performance than Ca. Accumulibacter. LEfSe analysis showed that the biomarkers of Low, Mid and High were Chloroflexi, Bacteroidetes and Betaproteobacteriales, respectively. This study clarified the process of the effect of FA on the EBPR system, deepened the understanding of the bacterial community structure during the phosphorus removal process of the EBPR system, and provided a reference for the in-depth study of the inhibition mechanism of biological phosphorus removal.
- free ammonia,
- enhanced biological phosphorus removal system,
- phosphorus removal efficiency,
- microbial diversity,
- high-throughput sequencing

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References(39)

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