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首页> 外文期刊>Frontiers of environmental science & eng >Removal of trimethoprim and sulfamethoxazole in artificial composite soil treatment systems and diversity of microbial communities
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Removal of trimethoprim and sulfamethoxazole in artificial composite soil treatment systems and diversity of microbial communities

机译：人工复合土壤处理系统中甲氧苄啶和磺胺甲恶唑的去除及微生物群落的多样性

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摘要

Four artificial composite soil treatment systems (ACSTs) fed with reclaimed water containing trimethoprim (TMP) and sulfamethoxazole (SMX) were constructed to investigate SMX and TMP biodegradation efficiency, ammonia and nitrite removal conditions and the microbial community within ACST layers. Results showed SMX and TMP removal rates could reach 80% and 95%, respectively, and removal rates of ammonia and nitrite could reach 80% and 90%, respectively, in ACSTs. The MiSeq sequencing results showed that microbial community structures of the ACSTs were similar. The dominant microbial community in the adsorption and biodegradation layers of the ACSTs contained Proteobacteria, Chloroflexi, Acidobacteria, Firmicutes, Actinobacteria and Nitrospirae. Firmicutes and Proteobacteria were considerably dominant in the ACST biodegradation layers. The entire experimental results indicated that Nitrosomonadaceae_uncultured, Nitrospira and Bacillus were associated with nitrification processes, while Bacillus and Lactococcus were associated with SMX and TMP removal processes. The findings suggest that ACSTs are appropriate for engineering applications.
机译：构造了四个人工复合土壤处理系统（ACST），其中分别注入了甲氧苄啶（TMP）和磺胺甲恶唑（SMX）的再生水，以研究SMX和TMP的生物降解效率，除氨和亚硝酸盐的条件以及ACST层内的微生物群落。结果表明，在ACST中，SMX和TMP的去除率分别达到80％和95％，氨和亚硝酸盐的去除率分别达到80％和90％。 MiSeq测序结果表明，ACST的微生物群落结构相似。 ACSTs吸附和生物降解层中的主要微生物群落包括变形杆菌，绿弯曲菌，酸性细菌，硬毛，放线菌和硝化螺旋菌。在ACST生物降解层中，硬菌和变形杆菌明显占优势。整个实验结果表明，未培养的亚硝基甲烷菌，硝化螺菌和芽孢杆菌与硝化过程有关，而芽孢杆菌和乳球菌与SMX和TMP去除过程有关。研究结果表明ACST适用于工程应用。

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  • 来源
    《Frontiers of environmental science & eng》 |2019年第2期|28.1-28.10|共10页
  • 作者

    Liu Qinqin; Li Miao; Liu Rui; Zhang Quan; Wu Di; Zhu Danni; Shen Xuhui; Feng Chuanping; Zhang Fawang; Liu Xiang;

  • 作者单位

    China Earthquake Adm, Inst Crustal Dynam, Beijing 100085, Peoples R China|Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China;

    Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China;

    Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China;

    Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China;

    Minist Environm Protect, Satellite Environm Ctr, Beijing 100092, Peoples R China;

    MLR, Inst Karst Geol, CAGS Key Lab Karst Dynam, Guilin 541004, Peoples R China|GZAR, Guilin 541004, Peoples R China;

    China Earthquake Adm, Inst Crustal Dynam, Beijing 100085, Peoples R China;

    China Univ Geosci Beijing, Beijing 100083, Peoples R China;

    MLR, Inst Karst Geol, CAGS Key Lab Karst Dynam, Guilin 541004, Peoples R China|GZAR, Guilin 541004, Peoples R China;

    Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Trimethoprim; Sulfamethoxazole; Reclaimed water; Biodegradation; Aerobic nitrification; Microbial community;

    机译：甲氧苄啶;磺胺甲恶唑;再生水;生物降解;好氧硝化;微生物群落;

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