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首页> 外文期刊>Environmental Science & Technology >Microbiome-Triggered Transformations of Trace Organic Chemicals in the Presence of Effluent Organic Matter in Managed Aquifer Recharge (MAR) Systems
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Microbiome-Triggered Transformations of Trace Organic Chemicals in the Presence of Effluent Organic Matter in Managed Aquifer Recharge (MAR) Systems

机译：有管理的含水层补给（MAR）系统中污水有机物存在下微生物组触发的痕量有机化学物质转化

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摘要

It is widely assumed that biodegradation of trace organic chemicals (TOrCs) in managed aquifer recharge (MAR) systems occurs via a cometabolic transformation with dissolved organic carbon serving as primary substrate. Hence, the composition facilitating bioavailability of the organic matter seems to have a great impact on TOrCs transformation in MAR systems. The aim of this study was to elucidate the character of effluent organic matter present in the feedwater of a simulated sequential MAR system throughout the infiltration by use of FT-ICR-MS analyses as well as spectroscopic methods. Furthermore, compositional changes were correlated with TOrCs targeted throughout the system as well as the abundance of different microbial phyla. On the basis of their behavior throughout the infiltration system in which different redox and substrate conditions prevailed, TOrCs were classified in four groups: easily degradable, redox insensitive, redox sensitive, and persistent. Masses correlating with persistent TOrCs were mainly comprised of CHNO-containing molecules but also of CHO which are known as carboxyl-rich alicyclic molecules, while CHOS and CHNOS can be neglected. Easily degradable TOrCs could be associated with CHNO-, CHO-, and CHOS-containing compounds. However, a shift of molecular compounds to mostly CHOS was observed for redox-insensitive TOrCs. Three hundred thirty eight masses correlated with removal of redox-sensitive TOrCs, but no distinct clustering was identified.
机译：人们普遍认为，在有管理的含水层补给（MAR）系统中，痕量有机化学物（TOrC）的生物降解是通过以溶解的有机碳作为主要底物的新陈代谢进行的。因此，促进有机物生物利用度的成分似乎对MAR系统中TOrC的转化有很大影响。这项研究的目的是通过使用FT-ICR-MS分析和光谱方法来阐明整个渗透过程中模拟序列MAR系统进水中存在的废水有机物的特征。此外，组成变化与整个系统中靶向的TOrC以及不同微生物门的丰度相关。根据它们在渗透系统中的行为，在该氧化系统中存在不同的氧化还原和底物条件，将TOrC分为四类：易降解，对氧化还原不敏感，对氧化还原敏感和持久。与持久性TOrC相关的质量主要由含CHNO的分子组成，但也由称为CHO的富含羧基的脂环族分子组成，而CHOS和CHNOS可忽略不计。易降解的TOrC可能与含CHNO，CHO和CHOS的化合物有关。然而，对于氧化还原不敏感的TOrC，观察到分子化合物向CHOS转移。三百三十八块与氧化还原敏感的TOrC的去除相关，但未发现明显的聚类。

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  • 来源
    《Environmental Science & Technology》 |2018年第24期|14342-14351|共10页
  • 作者

    Hellauer Karin; Uhl Jenny; Lucio Marianna; Schmitt-Kopplin Philippe; Wibberg Daniel; Huebner Uwe; Drewes Joerg E.;

  • 作者单位

    Tech Univ Munich, Chair Urban Water Syst Engn, Coulombwall 3, D-85748 Garching, Germany;

    Helmholtz Zentrum Munchen, Res Unit Analyt BioGeoChem, Ingolstadter Landstr 1, D-85764 Neuherberg, Germany;

    Helmholtz Zentrum Munchen, Res Unit Analyt BioGeoChem, Ingolstadter Landstr 1, D-85764 Neuherberg, Germany;

    Helmholtz Zentrum Munchen, Res Unit Analyt BioGeoChem, Ingolstadter Landstr 1, D-85764 Neuherberg, Germany|Tech Univ Munich, Chair Analyt Food Chem, Maximus von Imhof Forum 2, D-85354 Freising Weihenstephan, Germany;

    Bielefeld Univ, CeBiTec, Univ Str 25, D-33615 Bielefeld, Germany;

    Tech Univ Munich, Chair Urban Water Syst Engn, Coulombwall 3, D-85748 Garching, Germany;

    Tech Univ Munich, Chair Urban Water Syst Engn, Coulombwall 3, D-85748 Garching, Germany;

  • 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);
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