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首页> 外文期刊>Journal of Hazardous Materials >Enhanced bisphenol S anaerobic degradation using an NZVI-HA-modified anode in bioelectrochemical systems
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Enhanced bisphenol S anaerobic degradation using an NZVI-HA-modified anode in bioelectrochemical systems

机译：使用NZVI-HA改性阳极在生物电化学系统中增强双酚的厌氧降解

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摘要

As a substitute for bisphenol A (BPA), bisphenol S (BPS) has a longer half-life, higher chemical inertness and better skin permeability than BPA, and it also has a strong endocrine disruption effect. Relatively few studies have focused on the main processing technology for BPS biodegradation, and the findings indicate that the biodegradation efficiency of BPS was relatively low. Therefore, this paper used an NZVI-HA composite-modified bio-anode to enhance the anaerobic degradation of BPS in a Bioelectrochemical Systems (BES). The results showed that the degradation efficiency of BPS was improved from 31.1% to 92.2% with the NZVI-HA modification compared with the control group (CC-BES). FTIR and XPS analyzes demonstrated that HA can accelerate the reduction rate of Fe3+ and increase the ratio of Fe2+/Fe3+. In addition, HA can form Fe-O-HA complexes with NZVI to promote electron transfer. An analysis of the NZVI-HA-BES intermediate metabolites revealed that complex modification properties altered the BPS degradation pathway. An analysis of microbial diversity indicated that the bacteria related to the degradation of BPS may be Terrimonas, Lysobacter, and Acidovorax.
机译：作为双酚A（BPA）的替代品，双苯酚S（BPS）具有较长的半衰期，比BPA更高的化学惰性，更好的皮肤渗透性，并且它也具有强烈的内分泌破坏效果。相对较少的研究专注于BPS生物降解的主要加工技术，结果表明，BPS的生物降解效率相对较低。因此，本文使用了NZVI-HA复合改性的生物阳极，以增强生物电化学系统（BES）中BPS的厌氧降解。结果表明，与对照组（CC-BE）相比，NZVI-HA改性，将BPS的降解效率从31.1％提高到92.2％。 FTIR和XPS分析证明，HA可以加速Fe3 +的减少率并增加Fe2 + / Fe3 +的比率。此外，HA可以用NZVI形成Fe-O-HA复合物，以促进电子转移。 NZVI-HA-BES中间代谢物的分析表明，复杂的修饰性能改变了BPS降解途径。微生物多样性分析表明，与BPS降解有关的细菌可以是Terrimonas，粘膜和酸胃。

著录项

  • 来源
    《Journal of Hazardous Materials》 |2021年第3期|124053.1-124053.10|共10页
  • 作者

    Shi Chenyi; Xu Yuan; Liu Mingqing; Chen Xiujuan; Fan Mengjie; Liu Jining; Chen Yingwen;

  • 作者单位

    Nanjing Tech Univ Coll Biotechnol & Pharmaceut Engn 30 Puzhu South Rd Nanjing 211816 Peoples R China;

    Nanjing Tech Univ Coll Biotechnol & Pharmaceut Engn 30 Puzhu South Rd Nanjing 211816 Peoples R China;

    Minist Ecol & Environm Nanjing Inst Environm Sci Nanjing 210042 Peoples R China;

    Nanjing Tech Univ Coll Biotechnol & Pharmaceut Engn 30 Puzhu South Rd Nanjing 211816 Peoples R China;

    Nanjing Tech Univ Jiangsu Collaborat Innovat Ctr Adv Inorgan Funct Coll Mat Sci & Engn Nanjing 211816 Peoples R China;

    Minist Ecol & Environm Nanjing Inst Environm Sci Nanjing 210042 Peoples R China;

    Nanjing Tech Univ Coll Biotechnol & Pharmaceut Engn 30 Puzhu South Rd Nanjing 211816 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Nano-zerovalent iron (NZVI); Humic acid (HA); Modification; Bisphenol S (BPS); Bioelectrochemical systems (BES);

    机译：纳米零铁（NZVI）;腐殖酸（HA）;改性;双酚S（BPS）;生物电化学系统（BES）;

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