Efficiency and microbial community characteristics of strong alkali ASP flooding produced water treated by composite biofilm system
Strong alkali alkali-surfactant-polymer (ASP) flooding produced water is a by-product of oil recovery, and it is a stable system composed of petroleum, polyacrylamide, surfactant, and inorganic salts. Efficient, green, and safe ASP produced water treatment technology is essential for oilfield exploi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-05-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2023.1166907/full |
| _version_ | 1827941701692424192 |
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| author | Dong Wei Xinxin Zhang Xinxin Zhang Chunying Li Zhongting Ma Min Zhao Li Wei Li Wei |
| author_facet | Dong Wei Xinxin Zhang Xinxin Zhang Chunying Li Zhongting Ma Min Zhao Li Wei Li Wei |
| author_sort | Dong Wei |
| collection | DOAJ |
| description | Strong alkali alkali-surfactant-polymer (ASP) flooding produced water is a by-product of oil recovery, and it is a stable system composed of petroleum, polyacrylamide, surfactant, and inorganic salts. Efficient, green, and safe ASP produced water treatment technology is essential for oilfield exploitation and environmental protection. In this study, an anaerobic/anoxic/moving bed biofilm reactor with a microfiltration membrane was established and assessed for the real strong alkali ASP flooding produced water (pH 10.1–10.4) treatment. The results show that the average removal rates of COD, petroleum, suspended solids, polymers and surfactants in this process are 57, 99, 66, 40, and 44%, respectively. GC-MS results show that most of the organic compounds such as alkanes and olefins in the strong alkali ASP produced water are degraded. Microfiltration membrane can significantly improve the efficiency and stability of sewage treatment system. Paracoccus (AN), Synergistaceae (ANO) and Trichococcus (MBBR) are the main microorganisms involved in the degradation of pollutants. This study reveals the potential and adaptability of composite biofilm system in treating the produced water of strong alkali ASP produced water. |
| first_indexed | 2024-03-13T09:46:41Z |
| format | Article |
| id | doaj.art-93c3716989fa43329f25f79f2ada1878 |
| institution | Directory Open Access Journal |
| issn | 1664-302X |
| language | English |
| last_indexed | 2024-03-13T09:46:41Z |
| publishDate | 2023-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj.art-93c3716989fa43329f25f79f2ada18782023-05-25T04:11:48ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2023-05-011410.3389/fmicb.2023.11669071166907Efficiency and microbial community characteristics of strong alkali ASP flooding produced water treated by composite biofilm systemDong Wei0Xinxin Zhang1Xinxin Zhang2Chunying Li3Zhongting Ma4Min Zhao5Li Wei6Li Wei7College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, ChinaState Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, Heilongjiang, ChinaGuangzhou HKUST Fok Ying Tung Research Institute, Guangzhou, Guangdong, ChinaSchool of Energy and Civil Engineering, Harbin University of Commerce, Harbin, Heilongjiang, ChinaPetroChina Karamay Petrochemical Co., Ltd., Karamay, ChinaCollege of Life Science, Northeast Forestry University, Harbin, Heilongjiang, ChinaState Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, Heilongjiang, ChinaGuangzhou HKUST Fok Ying Tung Research Institute, Guangzhou, Guangdong, ChinaStrong alkali alkali-surfactant-polymer (ASP) flooding produced water is a by-product of oil recovery, and it is a stable system composed of petroleum, polyacrylamide, surfactant, and inorganic salts. Efficient, green, and safe ASP produced water treatment technology is essential for oilfield exploitation and environmental protection. In this study, an anaerobic/anoxic/moving bed biofilm reactor with a microfiltration membrane was established and assessed for the real strong alkali ASP flooding produced water (pH 10.1–10.4) treatment. The results show that the average removal rates of COD, petroleum, suspended solids, polymers and surfactants in this process are 57, 99, 66, 40, and 44%, respectively. GC-MS results show that most of the organic compounds such as alkanes and olefins in the strong alkali ASP produced water are degraded. Microfiltration membrane can significantly improve the efficiency and stability of sewage treatment system. Paracoccus (AN), Synergistaceae (ANO) and Trichococcus (MBBR) are the main microorganisms involved in the degradation of pollutants. This study reveals the potential and adaptability of composite biofilm system in treating the produced water of strong alkali ASP produced water.https://www.frontiersin.org/articles/10.3389/fmicb.2023.1166907/fullproduced watermoving bed biofilm reactormicrofiltration membranemicrobial communityASP flooding |
| spellingShingle | Dong Wei Xinxin Zhang Xinxin Zhang Chunying Li Zhongting Ma Min Zhao Li Wei Li Wei Efficiency and microbial community characteristics of strong alkali ASP flooding produced water treated by composite biofilm system Frontiers in Microbiology produced water moving bed biofilm reactor microfiltration membrane microbial community ASP flooding |
| title | Efficiency and microbial community characteristics of strong alkali ASP flooding produced water treated by composite biofilm system |
| title_full | Efficiency and microbial community characteristics of strong alkali ASP flooding produced water treated by composite biofilm system |
| title_fullStr | Efficiency and microbial community characteristics of strong alkali ASP flooding produced water treated by composite biofilm system |
| title_full_unstemmed | Efficiency and microbial community characteristics of strong alkali ASP flooding produced water treated by composite biofilm system |
| title_short | Efficiency and microbial community characteristics of strong alkali ASP flooding produced water treated by composite biofilm system |
| title_sort | efficiency and microbial community characteristics of strong alkali asp flooding produced water treated by composite biofilm system |
| topic | produced water moving bed biofilm reactor microfiltration membrane microbial community ASP flooding |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2023.1166907/full |
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