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Liu S, Yuan W, Yang X, Li C, Ji Y, Feng X, Li M, Xie Y. Microbial degradation of petroleum characteristic pollutants in hypersaline environment, emphasizing n-hexadecane and 2,4 di-tert-butylphenol. Environ Monit Assess 2023; 195:771. [PMID: 37254025 DOI: 10.1007/s10661-023-11362-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 05/08/2023] [Indexed: 06/01/2023]
Abstract
In this paper, nine strains of salt-tolerant petroleum-degrading bacteria were applied to an biological aerated filter. Simulating the degradation of high-salinity petroleum wastewater with n-hexadecane and 2,4-ditert-butylphenol as the primary pollutants and analyzing the structure of the biofilm at various salt concentrations. According to the results, when the salinity was 4%, the COD removal efficiency reached 74.34%. Various halotolerant microorganisms have adapted to various salt concentrations. At a salinity of 3%, n-hexadecane exhibited the best degradation effect, with a rate of 83.21%. Shewanella, Acinetobacter, and Marinobacter were the predominant bacterial groups at the time. At 4% salinity, Acinetobacter and Pseudomonas were the predominant bacteria, and the average 2,4-ditert-butylphenol degradation rate was the highest at 63.02%. This study provided an experimental basis for further studying the biological treatment of high-salinity petroleum wastewater.
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Affiliation(s)
- Shiling Liu
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Wenjiao Yuan
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Xiaolin Yang
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Chengbin Li
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Yishan Ji
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Xin Feng
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Meitong Li
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China.
- Easy Clear (Tianjin) Environmental Protection Science & Technology Co., Ltd., Tianjin, 300384, China.
- Tianjin Key Laboratory of Hazardous Waste Safety Disposal and Recycling Technology, Tianjin, 300384, China.
- Tianjin Engineering Research Center of Green Chemical Industry and Waste Recycling, Tianjin, 300384, China.
| | - Yuhong Xie
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China.
- Easy Clear (Tianjin) Environmental Protection Science & Technology Co., Ltd., Tianjin, 300384, China.
- Tianjin Key Laboratory of Hazardous Waste Safety Disposal and Recycling Technology, Tianjin, 300384, China.
- Tianjin Engineering Research Center of Green Chemical Industry and Waste Recycling, Tianjin, 300384, China.
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