Reinjection oilfield wastewater treatment using bioelectrochemical system and consequent corrosive community evolution on pipe material

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Reinjection oilfield wastewater treatment using bioelectrochemical system and consequent corrosive community evolution on pipe material
	Wang, Bo; Liu, Wenzong; Cai, Weiwei; Li, Jiaqi; Yang, Lihui; Li, Xiqi; Wang, Hui; Zhu, Tingting; Wang, Aijie
刊名	JOURNAL OF BIOSCIENCE AND BIOENGINEERING
	2020-02
卷号	129 期号:2 页码:199-205
关键词	Oilfield wastewater Dissolved oxygen Bioelectrochemical system Corrosive community Sulfate-reducing bacteria
ISSN号	1389-1723
英文摘要	The corrosive issues are comprehensively caused in oilfield rejection system, in which sulfide is one of (bio-)chemical factors leading to high corrosive rate and blocking problem. Generally, aerobic treatment is a well-established and cost-effective unit for sulfide removal before oilfield wastewater reinjection. However, the residual dissolved oxygen (DO), which causes chemical, biological and electrochemical corrosion to water injection pipeline equipment, is still high after multi-stage filtration of DO removal. Here, a novel system to achieve quick and efficient DO removal through a three-electrode (cathode-anode-cathode)-upflow bioelectrochemical reactor (R-CAC) was constructed before wastewater reinjection. Bioelectrodes were well established by utilizing organic matters of oilfield wastewater and conducted extracellular electron transport to achieve a steady DO removal from similar to 5 mg/L to 0.01 mg/L (HRT 6 h), the DO removal efficiency reached approximately 100%, and the downside biocathode made the largest contribution for DO removal. In the treated wastewater, the corrosion rate of stainless steel N80 ultimately declined over 30 days testing. As a result of DO removal and ammonia conversion to nitrate by bioelectrodes, the corrosive microorganisms were substantially changed. Especially, sulfate-reducing bacteria (SRB) on the surface of N80 immersed in treated wastewater were decreased in abundance; while nitrate-reducing bacteria (NRB) enriched more, which can compete with SRB to prevent biological corrosion. (C) 2019, The Society for Biotechnology, Japan. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45204]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
推荐引用方式 GB/T 7714	Wang, Bo,Liu, Wenzong,Cai, Weiwei,et al. Reinjection oilfield wastewater treatment using bioelectrochemical system and consequent corrosive community evolution on pipe material[J]. JOURNAL OF BIOSCIENCE AND BIOENGINEERING,2020,129(2):199-205.
APA	Wang, Bo.,Liu, Wenzong.,Cai, Weiwei.,Li, Jiaqi.,Yang, Lihui.,...&Wang, Aijie.(2020).Reinjection oilfield wastewater treatment using bioelectrochemical system and consequent corrosive community evolution on pipe material.JOURNAL OF BIOSCIENCE AND BIOENGINEERING,129(2),199-205.
MLA	Wang, Bo,et al."Reinjection oilfield wastewater treatment using bioelectrochemical system and consequent corrosive community evolution on pipe material".JOURNAL OF BIOSCIENCE AND BIOENGINEERING 129.2(2020):199-205.