Performance and microbial community analysis of combined bioreactors in treating high-salinity hydraulic fracturing flowback and produced water

被引：14
作者：
Yan, Bozhi [1 ]
Jiang, Lijia [2 ]
Zhou, Hanghai [4 ]
Atakpa, Edidiong Okokon [2 ]
Bo, Kuiyong [3 ]
Li, Pingyuan [3 ]
Xie, Qinglin [1 ]
Li, Yanhong [1 ]
Zhang, Chunfang [2 ]
机构：
[1] Guilin Univ Technol, Coll Environm Sci & Engn, Guilin 541006, Peoples R China
[2] Zhejiang Univ, Inst Marine Biol, Ocean Coll, Zhoushan 316021, Zhejiang, Peoples R China
[3] Xinjiang Keli New Technol Dev Co Ltd, Karamay 834000, Xinjiang, Peoples R China
[4] Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, Hangzhou, Zhejiang, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2023年 / 386卷
基金：
中国国家自然科学基金;
关键词：
Fixed -bed baffle bioreactor; Hydraulic fracturing flowback produced water; Co -occurrence network; Microbial community; Functional genera; ACCUMULATING ORGANISMS; OIL; REACTOR;
D O I：
10.1016/j.biortech.2023.129469
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The anoxic/oxic systems are a widely used biological strategy for wastewater treatment. However, little is known about the performance and microbial community correlation of different combined bioreactors in the treatment of high-COD and high-salinity hydraulic fracturing flowback and produced water (HF-FPW). In this study, the performance of Up-flow anaerobic sludge bed-bio-contact oxidation reactor (UASB-BCOR) and Fixed-bed baffled reactor (FBR-BCOR) in treating HF-FPW was investigated and compared. The results suggested the FBR-BCOR could efficiently remove COD, SS, NH4+-N, and oil pollutants, and it exhibited better resistance to the negative interference of hydraulic shock load on it. Besides, the correlation analysis first disclosed the key functional genera during the degradation process, including Ignavibacterium, Ellin6067, and Zixibacteria. Moreover, network analysis revealed that the difference of microbial co-occurrence network structure is the main driving factor for the difference of bioreactor processing capacity. This work demonstrates the feasibility and potential of FBRBCOR in treating HF-FPW.
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页数：9
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