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首页> 外文期刊>Frontiers of environmental science & eng >Removal of tetrachlorobisphenol A and the effects on bacterial communities in a hybrid sequencing biofilm batch reactor-constructed wetland system
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Removal of tetrachlorobisphenol A and the effects on bacterial communities in a hybrid sequencing biofilm batch reactor-constructed wetland system

机译：混合测序生物膜分批反应器构建的湿地系统中四氯双酚A的去除及其对细菌群落的影响

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摘要

Tetrachlorobisphenol A (TCBPA) released into the sewage may cause environmental pollution and health risk to human beings. The objective of this study was to investigate the removal of TCBPA and bacterial community structures in a laboratory-scale hybrid sequencing biofilm batch reactor (SBBR)- constructed wetland (CW) system. The results showed that the removal efficiency of chemical oxidation demand (COD), ammonia, total nitrogen and total phosphorus in the SBBR-CW system was 96.7%, 97.3%, 94.4%, and 88.6%, respectively. At the stable operation stage, the system obtained a 71.7%+/- 1.8% of TCBPA removal efficiency with the influent concentration at 200 mg/L. Illumina MiSeq sequencing of 16S rRNA gene revealed that the presence of TCBPA not only reduced the bacterial diversity in the SBBR-CW system, but also altered the composition and structure of bacterial community. After the addition of TCBPA, Proteobacteria increased from 31.3% to 38.7%, while Acidobacteria and Parcubacteria decreased greatly in the SBBR. In contrast, Acidobacteria replaced Proteobacteria as the dominant phylum in the upper soils of CW. The results indicated that TCBPA stimulated the growth of GAOs in the SBBR without deteriorating the phosphorus removal due to the presence of sufficient carbon sources. The ammonia oxidizing bacteria, Nitrosomonas, and denitrification bacteria, Hyphomicrobium and Pseudomonas, were inhibited by TCBPA, resulting in a decreasing the removal efficiency of TN and ammonia. (c) Higher Education Press and Springer- Verlag GmbH Germany, part of Springer Nature 2019
机译：释放到污水中的四氯双酚A（TCBPA）可能对人类造成环境污染和健康风险。这项研究的目的是研究在实验室规模的混合测序生物膜间歇反应器（SBBR）建造的湿地（CW）系统中去除TCBPA和细菌群落结构。结果表明，SBBR-CW系统中化学需氧量（COD），氨，总氮和总磷的去除效率分别为96.7％，97.3％，94.4％和88.6％。在稳定运行阶段，进水浓度为200 mg / L时，系统获得TCBPA去除效率的71.7％+ /-1.8％。 Illumina MiSeq对16S rRNA基因的测序表明TCBPA的存在不仅降低了SBBR-CW系统中的细菌多样性，而且改变了细菌群落的组成和结构。加入TCBPA后，SBBR中的变形杆菌从31.3％增加到38.7％，而酸性细菌和Parcubacteria则大大降低。相比之下，酸性细菌取代了变形杆菌成为CW上部土壤中的优势门。结果表明，由于存在足够的碳源，TCBPA刺激了SBBR中GAO的生长，而不会降低磷的去除率。 TCBPA抑制氨氧化细菌亚硝化单胞菌和反硝化细菌Hyphomicrobium和假单胞菌，导致TN和氨的去除效率降低。 （c）高等教育出版社和Springer- Verlag GmbH德国，Springer Nature 2019的一部分

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  • 来源
    《Frontiers of environmental science & eng》 |2019年第1期|14.1-14.11|共11页
  • 作者

    Wang Xiaohui; Du Shuai; Ya Tao; Shen Zhiqiang; Dong Jing; Zhu Xiaobiao;

  • 作者单位

    Beijing Univ Chem Technol, Coll Chem Engn, Dept Environm Sci & Engn, Beijing 100029, Peoples R China;

    Beijing Univ Chem Technol, Coll Chem Engn, Dept Environm Sci & Engn, Beijing 100029, Peoples R China;

    Beijing Univ Chem Technol, Coll Chem Engn, Dept Environm Sci & Engn, Beijing 100029, Peoples R China;

    Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China;

    Beijing Municipal Res Inst Environm Protect, Beijing 100037, Peoples R China;

    Beijing Univ Chem Technol, Coll Chem Engn, Dept Environm Sci & Engn, Beijing 100029, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    SBBR; Constructed wetland; Tetrachlorobisphenol A; Microbial community structure;

    机译：SBBR;人工湿地;四氯双酚A;微生物群落结构;

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