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Chemcial Industry and Engineering 2023, Vol. 40 Issue (2) :94-103    DOI: 10.13353/j.issn.1004.9533.20210354
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Study on treatment of fracturing flowback wastewater and microbial community based on MABR
ZHAO Dong1,2,3, YANG Pingping4, DING Ye5, XIE Liang4, LI Baoan6
1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China;
2. Collaborative Innovation Center of Chemical Science and Technology, Tianjin 300072, China;
3. State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300350, China;
4. Xinjiang Petroleum Engineering Co., Ltd., Design Branch, Xinjiang Karamay 834000, China;
5. Engineering Technology Research Institute of Xinjiang Oilfield Company, Xinjiang Karamay 834000, China;
6. College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China

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Abstract Fracturing flowback wastewater (FFW) contains a variety of complex organic substances with high toxicity, high salinity and poor biodegradability. In this study, a three-stage membrane-aerated biofilm reactor (MABR) system was designed for the treatment of FFW. The system showed excellent carbon and nitrogen removal performance under the optimal operating parameters. The effluent from MABR system treated by Fenton reagent met the secondary standard of integrated wastewater discharge. The removal rates of COD, NH+4-N and TN by MABR system were 79.30%, 96.06% and 75.61%, respectively. Microbiological analysis showed that MABR biofilm was enriched with abundant functional flora, in which Proteobacteria and Bacteroidetes were the dominant flora. This study demonstrated the technical feasibility of MABR treatment of FFW, and laid a foundation for the application of MABR in the treatment of related wastewater.
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ZHAO Dong
YANG Pingping
DING Ye
XIE Liang
LI Baoan
Keywordsmembrane-aerated biofilm reactor (MABR)   fracturing flowback wastewater (FFW)   parameter optimization   carbon and nitrogen removal   microbial community     
Received 2021-04-23;
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ZHAO Dong, YANG Pingping, DING Ye, XIE Liang, LI Baoan.Study on treatment of fracturing flowback wastewater and microbial community based on MABR[J]  Chemcial Industry and Engineering, 2023,V40(2): 94-103
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