Investigating the performance of an anaerobic baffled bioreactor for the biodegradation of alkaline-surfactant-polymer in oilfield water
Investigating the performance of an anaerobic baffled bioreactor for the biodegradation of alkaline-surfactant-polymer in oilfield water
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研究厌氧折流板生物反应器生物降解油田水中碱性表面活性剂聚合物的性能
DOI：
10.1080/09593330.2017.1364304
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发表时间：
2017
影响因子：
2.8
通讯作者：
Qijiang Xu
中科院分区：
文献类型：
--
作者：
Changli Liu;Rongshu Zhang;Hongyi Yang;Jie Zhang;Hongwei Wang;Le Chang;Yuanlong Zhan;Qijiang Xu
大庆油田采用厌氧折流板反应器（ABR）处理碱性表面活性剂聚合物（ASP）驱废水。通过ABR，水力停留时间（HRT）从72 减少到24 h，生物反应器的净化能力逐渐提高。 ABR运行100天后，原料油、悬浮物和表面活性剂的去除率分别达到99.8%、94.4%和50%；碱、聚合物和粘度的去除率分别为约16%、7%和20%。 GCMS在原始水样中检测出39种有机物，而ABR排污口中仅残留12种有机物。上述结果表明，ABR的厌氧、兼性厌氧和好氧室具有较强的生物降解石油污染物质的能力。 16S rRNA焦磷酸测序分析表明ABR反应器中存在的优势菌属为不动杆菌属、弓形杆菌属、假单胞菌属和副球菌属，其中不动杆菌属为细菌群落的优势种。
The anaerobic baffled reactor (ABR) was used to treat alkaline-surfactant-polymer (ASP) flooding wastewater in the Daqing oilfield. With the ABR, hydraulic retention time (HRT)was reduced from 72 to 24 h, the bioreactor purification capability gradually improved. After the ABR running for 100 days, the removal rate of raw oil, suspended solid and surfactant reached 99.8%, 94.4% and 50%, respectively; alkali, polymer and viscosity were removed at a rate of about 16%, 7% and 20%, respectively. There were 39 kinds of organic materials detected by GCMS in the original water sample, while only 12 kinds of organics were left in the ABR outfall. The above results showed that the anaerobic, facultative anaerobic and aerobic compartment of ABR have strong capability of biodegrading petroleum pollution matter. Pyrosequencing analysis of the 16S rRNA indicated thatAcinetobacter, Arcobacter, PseudomonasandParacoccuswere the dominant bacteria genera present in the ABR reactor, among themAcinetobacterwas the dominant species in the bacterial community.