Surfactant-facilitated dechlorination of 2,2′,5,5′-tetrachlorinated biphenyl using zero-valent iron in soil/sediment solution: Integrated effects of plausible factors

Wu Yingxin; Wang Yu; Huang Xiongfei; Simonnot Marie-Odile; Wu Wencheng; Cai Xinde; Chen Siyuan; Wang Shizhong; Qiu Rongliang; Zhang Weihua

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Surfactant-facilitated dechlorination of 2,2′,5,5′-tetrachlorinated biphenyl using zero-valent iron in soil/sediment solution: Integrated effects of plausible factors

机译：表面活性剂促进土壤/泥沙溶液中零价铁对2,2'，5,5'-四氯化联苯的脱氯：可能因素的综合影响

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Surfactants are used to assist the zero-valent iron-mediated reductive dechlorination (ZVI-RD) of hydrophobic organic contaminants (HOCs). Although the effect of surfactants has been investigated in single-factor systems, the relationships between the surfactant and the matrix properties during RD are not well understood. Thus, an orthogonal experiment and post-experiment characterization of ZVI were conducted in the present study to estimate the integrated effects of plausible factors. The results showed that the introduction of surfactants significantly influenced the reduction of 2,2',5,5'-tetrachlorinated biphenyl (PCB-52) by altering the contact between ZVI and PCB-52. An anionic surfactant was able to alleviate the adverse impact of high amounts of non-ionic surfactants and humic acid (used as representative soil organic matter) by changing their sorption behaviors, which were also influenced by the initial pH value. However, the reduction of ZVI by humic acid decreased the electron transfer efficiency of ZVI, and also reduced the contact between ZVI and PCB-52 by generating FeCO3. These results suggest that the rate-limiting process for the ZVI-RD of HOCs in the soil/sediment solution is the contact between ZVI and HOCs, which can be improved by the addition of surfactants at concentrations corresponding to the maximum adsorption capacity of HOCs on the ZVI surface. (C) 2018 Elsevier Ltd. All rights reserved.

机译：表面活性剂用于辅助疏水性有机污染物（HOC）的零价铁介导的还原脱氯（ZVI-RD）。尽管已经在单因素系统中研究了表面活性剂的作用，但对RD过程中表面活性剂与基质性能之间的关系还没有很好的了解。因此，在本研究中进行了ZVI的正交实验和实验后表征，以评估合理因素的综合作用。结果表明，表面活性剂的引入通过改变ZVI与PCB-52之间的接触，显着影响了2,2'，5,5'-四氯联苯（PCB-52）的还原。阴离子表面活性剂能够通过改变吸附性能来减轻大量非离子表面活性剂和腐殖酸（用作代表性的土壤有机物）的不利影响，这也受到初始pH值的影响。但是，腐殖酸还原ZVI会降低ZVI的电子转移效率，并且还会通过生成FeCO3降低ZVI与PCB-52之间的接触。这些结果表明，土壤/沉积物溶液中HOC的ZVI-RD的限速过程是ZVI与HOC之间的接触，这可以通过添加相应于HOC在水中最大吸附能力的浓度的表面活性剂来改善。 ZVI表面。（C）2018 Elsevier Ltd.保留所有权利。

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来源
《Chemosphere》 |2018年第12期|845-852|共8页
作者
Wu Yingxin; Wang Yu; Huang Xiongfei; Simonnot Marie-Odile; Wu Wencheng; Cai Xinde; Chen Siyuan; Wang Shizhong; Qiu Rongliang; Zhang Weihua;
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作者单位

Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangdong Prov Key Lab Environm Pollut Control &, 135 Xingang Xi Rd, Guangzhou 510275, Guangdong, Peoples R China;

Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangdong Prov Key Lab Environm Pollut Control &, 135 Xingang Xi Rd, Guangzhou 510275, Guangdong, Peoples R China;

Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangdong Prov Key Lab Environm Pollut Control &, 135 Xingang Xi Rd, Guangzhou 510275, Guangdong, Peoples R China;

Univ Lorraine, CNRS, Lab React & Genie Proc, 1 Rue Grandville BP20451, F-54001 Nancy, France;

Minist Environm Protect, South China Inst Environm Sci, 7 West St, Guangzhou 510655, Guangdong, Peoples R China;

Minist Environm Protect, South China Inst Environm Sci, 7 West St, Guangzhou 510655, Guangdong, Peoples R China;

Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangdong Prov Key Lab Environm Pollut Control &, 135 Xingang Xi Rd, Guangzhou 510275, Guangdong, Peoples R China;

Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangdong Prov Key Lab Environm Pollut Control &, 135 Xingang Xi Rd, Guangzhou 510275, Guangdong, Peoples R China;

Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangdong Prov Key Lab Environm Pollut Control &, 135 Xingang Xi Rd, Guangzhou 510275, Guangdong, Peoples R China;

Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangdong Prov Key Lab Environm Pollut Control &, 135 Xingang Xi Rd, Guangzhou 510275, Guangdong, Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类
关键词
Zero-valent iron; Polychlorinated biphenyls; Reductive dechlorination; Surfactant;

机译：零价铁;多氯联苯;还原脱氯;表面活性剂;

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1. Synergistical enhancement by Ni2+ and Tween-80 of nanoscale zerovalent iron dechlorination of 2,2 ',5,5 '-tetrachlorinated biphenyl in aqueous solution [J] . Wu Yingxin, Wu Zihao, Huang Xiongfei, Environmental Science and Pollution Research . 2015,第1期

机译：Ni2 +和Tween-80对水溶液中2,2'，5,5'-四氯化联苯的纳米级零价铁脱氯的协同增强作用
2. Enhanced reductive dechlorination of poly chlorinated biphenyl-contaminated soil by in-vessel anaerobic composting with zero-valent iron [J] . Yu-Yang Long, Chi Zhang, Yao Du Environmental Science and Pollution Research . 2014,第6期

机译：零价铁在容器内厌氧堆肥中增强的多氯联苯污染土壤的还原脱氯
3. Effects of the presence of nanoscale zero-valent iron on the degradation of polychlorinated biphenyls and total organic carbon by sediment microbial fuel cell [J] . Wu Mingsong, Xu Xun, Lu Kexiang, The Science of the Total Environment . 2019,第MARa15期

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4. Factors Influencing the Development of a Biostimulant for the In-Situ Anaerobic Dechlorination of Polychlorinated Biphenyls in Fox River, Wisconsin Sediments [C] . Hollifield M.B., Park J.K., Boyle W.C., Symposium on dredging, remediation, and containment of contaminated sediments . 1995

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5. Effects of Ferric Oxyhydroxide on Anaerobic Microbial Dechlorination of Polychlorinated Biphenyls in Hudson and Grasse River Sediment Microcosms: Dechlorination Extent Preferences Ortho Removal and Its Enhancement [O] . Yan Xu, Kelvin B. Gregory, Jeanne M. VanBriesen -1

机译：羟基氧化铁对哈德逊河和格拉斯河沉积物缩影中多氯联苯厌氧微生物脱氯的影响：脱氯程度偏好邻位去除及其增强
6. Zero-Valent Iron Nanoparticles Remediate Nickel-Contaminated Aqueous Solutions and Biosolids-Amended Agricultural Soil [O] . Ahmed M. Mahdy, Tiequan Zhang, Zhi-Qing Lin, 2021

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7. Emerging Technologies for the In Situ Remediation of PCB-Contamined Soils and Sediments: Bioremediation and Nanoscale Zero-Valent Iron [R] . Mikszewski, A. 2004

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Surfactant-facilitated dechlorination of 2,2′,5,5′-tetrachlorinated biphenyl using zero-valent iron in soil/sediment solution: Integrated effects of plausible factors

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