Correlating Microbial Community Characteristics with Environmental Factors along a Two-Stage Biological Aerated Filter
The purification effect of a biological aerated filter (BAF) mainly comes from the microorganisms in the reactor. Understanding the correlation between microbial community characteristics and environmental factors along the filter has great significance for maintaining good operation and improving t...
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| Format: | Article |
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MDPI AG
2020-11-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/12/12/3317 |
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| author | Yuchen An Songmin Li Xiaoling Wang Yuyang Liu Ruonan Wang |
| author_facet | Yuchen An Songmin Li Xiaoling Wang Yuyang Liu Ruonan Wang |
| author_sort | Yuchen An |
| collection | DOAJ |
| description | The purification effect of a biological aerated filter (BAF) mainly comes from the microorganisms in the reactor. Understanding the correlation between microbial community characteristics and environmental factors along the filter has great significance for maintaining good operation and improving the removal efficiency of the filter. A two-stage BAF was employed to treat domestic sewage under organic loads of 1.02 and 1.55 kg/m<sup>3</sup>·d for 15 days each. 16S rDNA high-throughput sequencing technology and redundancy analysis were applied to explore the correlation between microbial community characteristics and environmental variables. The results showed that: (1) the crucial organic-degrading bacteria in the A-stage filter were of the genus <i>Novosphingobium</i>, which had a significant increase in terms of relative abundance at sampling outlet A3 (135 cm of the filling height) after the increase of organic load; (2) the microbial communities at different positions in the B-stage filter were similarly affected by environmental factors, and the main bacteria associated with nitrogen removal in the B-stage filter were <i>Zoogloea</i> and <i>Rhodocyclus</i>; and (3) to improve the pollutant removal performance of this two-stage biological aerated filter, a strategy of adding an internal circulation in the B-stage filter can be adopted. |
| first_indexed | 2024-03-10T14:34:26Z |
| format | Article |
| id | doaj.art-db3a1ce5579a41eca48b0d66ac58c95d |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T14:34:26Z |
| publishDate | 2020-11-01 |
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| record_format | Article |
| series | Water |
| spelling | doaj.art-db3a1ce5579a41eca48b0d66ac58c95d2023-11-20T22:22:50ZengMDPI AGWater2073-44412020-11-011212331710.3390/w12123317Correlating Microbial Community Characteristics with Environmental Factors along a Two-Stage Biological Aerated FilterYuchen An0Songmin Li1Xiaoling Wang2Yuyang Liu3Ruonan Wang4School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, ChinaDepartment of Water Conservancy Engineering, Tianjin Agriculture University, Tianjin 300384, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, ChinaSchool of Environmental Science and Engineering, Tianjin University, Tianjin 300072, ChinaSchool of Environmental Science and Engineering, Tianjin University, Tianjin 300072, ChinaThe purification effect of a biological aerated filter (BAF) mainly comes from the microorganisms in the reactor. Understanding the correlation between microbial community characteristics and environmental factors along the filter has great significance for maintaining good operation and improving the removal efficiency of the filter. A two-stage BAF was employed to treat domestic sewage under organic loads of 1.02 and 1.55 kg/m<sup>3</sup>·d for 15 days each. 16S rDNA high-throughput sequencing technology and redundancy analysis were applied to explore the correlation between microbial community characteristics and environmental variables. The results showed that: (1) the crucial organic-degrading bacteria in the A-stage filter were of the genus <i>Novosphingobium</i>, which had a significant increase in terms of relative abundance at sampling outlet A3 (135 cm of the filling height) after the increase of organic load; (2) the microbial communities at different positions in the B-stage filter were similarly affected by environmental factors, and the main bacteria associated with nitrogen removal in the B-stage filter were <i>Zoogloea</i> and <i>Rhodocyclus</i>; and (3) to improve the pollutant removal performance of this two-stage biological aerated filter, a strategy of adding an internal circulation in the B-stage filter can be adopted.https://www.mdpi.com/2073-4441/12/12/3317microbial community characteristicsenvironmental factorstwo-stage biological aerated filterredundancy analysis |
| spellingShingle | Yuchen An Songmin Li Xiaoling Wang Yuyang Liu Ruonan Wang Correlating Microbial Community Characteristics with Environmental Factors along a Two-Stage Biological Aerated Filter Water microbial community characteristics environmental factors two-stage biological aerated filter redundancy analysis |
| title | Correlating Microbial Community Characteristics with Environmental Factors along a Two-Stage Biological Aerated Filter |
| title_full | Correlating Microbial Community Characteristics with Environmental Factors along a Two-Stage Biological Aerated Filter |
| title_fullStr | Correlating Microbial Community Characteristics with Environmental Factors along a Two-Stage Biological Aerated Filter |
| title_full_unstemmed | Correlating Microbial Community Characteristics with Environmental Factors along a Two-Stage Biological Aerated Filter |
| title_short | Correlating Microbial Community Characteristics with Environmental Factors along a Two-Stage Biological Aerated Filter |
| title_sort | correlating microbial community characteristics with environmental factors along a two stage biological aerated filter |
| topic | microbial community characteristics environmental factors two-stage biological aerated filter redundancy analysis |
| url | https://www.mdpi.com/2073-4441/12/12/3317 |
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