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首页> 外文期刊>Environmental Science & Technology >Behavior of Fluoroquinolones and Trimethoprim during Mechanical,Chemical,and Active Sludge Treatment of Sewage Water and Digestion of Sludge
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Behavior of Fluoroquinolones and Trimethoprim during Mechanical,Chemical,and Active Sludge Treatment of Sewage Water and Digestion of Sludge

机译：机械，化学和活性污泥处理污水和消化污泥过程中氟喹诺酮类和甲氧苄啶的行为

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摘要

The behavior and fate of three fluoroquinolones (norfloxacin,ofloxacin,and ciprofloxacin),one sulfonamide (sulfamethox-azole),and trimethoprim were investigated at a sewage treatment plant in Umea,Sweden,in 2004.This plant uses conventional mechanical,chemical,and activated sludge methods to treat the sewage water and digest the sludge;the dewatered digested sludge is pelleted (dry weight > 90% of total weight).Raw sewage water and particles as well as effluents and sludge from specific treatment areas within the plant were sampled.In addition to quantifying the antibiotics within the plant,we characterized the sample matrixes to facilitate evaluation of the results.Of the five substances examined,only norfloxacin,ciprofloxacin,and trimethoprim were present in concentrations higher than their limits of quantification.Norfloxacin and ciprofloxacin sorbed to sludge in a manner that was independent of changes in pH during sewage treatment,and more than 70% of the total amount of these compounds passing through the plant was ultimately found in the digested sludge.The results suggest that fluoroquinolones undergo thermal degradation during pelleting,but more studies are needed to confirm this.Trimethoprim was found in the final effluent at approximately the same concentration and mass flow as in the raw sewage,and could not be quantified in any solid sample.Predicted environmental concentrations,based on consumption data for Umea municipality,correlated well with the results obtained,especially whenthe predicted concentrations were corrected to account for the amount of each active substance excreted in urine.The results obtained were compared to those of previous studies of these three substances' behavior and fate and were found to be similar,although some of the other plants studied employed the various treatment steps in different orders.
机译：2004年，在瑞典于默奥的污水处理厂，对三种氟喹诺酮类药物（诺氟沙星，氧氟沙星和环丙沙星），一种磺酰胺（磺胺甲恶唑）和甲氧苄啶的行为和命运进行了研究。该工厂使用常规的机械，化学方法和活性污泥法处理污水并消化污泥;将脱水的消化污泥制成颗粒（干重>总重量的90％）;对工厂内特定处理区域的原始污水和颗粒以及废水和污泥进行采样除了对植物内的抗生素进行定量分析外，我们还对样品基质进行了表征，以利于评估结果。在所检查的五种物质中，仅诺氟沙星，环丙沙星和甲氧苄啶的浓度均高于其定量限。诺氟沙星和环丙沙星吸附至污泥的方式与污水处理过程中pH的变化无关，且占污泥总量的70％以上最终在消化的污泥中发现了通过工厂的磅。结果表明，氟喹诺酮类在制粒过程中会发生热降解，但需要更多的研究来证实这一点。在最终废水中发现甲氧苄啶与浓度和质量流量大致相同。根据Umea市的消耗数据，预测的环境浓度与所获得的结果密切相关，尤其是在校正预测的浓度以考虑到各排放的活性物质的量的情况下，这种预测的浓度与所得的结果紧密相关。将获得的结果与先前对这三种物质的行为和命运的研究结果进行了比较，发现结果是相似的，尽管研究的其他一些植物采用了不同顺序的各种处理步骤。

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  • 来源
    《Environmental Science & Technology》 |2006年第3期|p.1042-1048|共7页
  • 作者

    RICHARD H. LINDBERG; ULRIKA OLOFSSON; PER RENDAHL; MAGNUS I. JOHANSSON; MATS TYSKLIND; BARBRO A. V. ANDERSSON;

  • 作者单位

    Environmental Chemistry,Umea University, SE-901 87 Umea,Sweden,UMEVA,SE-901 84 Umea,Sweden, and Astra Zeneca R&D,Molndal,SE-431 83,Sweden;

    Environmental Chemistry,Umea University, SE-901 87 Umea,Sweden,UMEVA,SE-901 84 Umea,Sweden, and Astra Zeneca R&D,Molndal,SE-431 83,Sweden;

    Environmental Chemistry,Umea University, SE-901 87 Umea,Sweden,UMEVA,SE-901 84 Umea,Sweden, and Astra Zeneca R&D,Molndal,SE-431 83,Sweden;

    Environmental Chemistry,Umea University, SE-901 87 Umea,Sweden,UMEVA,SE-901 84 Umea,Sweden, and Astra Zeneca R&D,Molndal,SE-431 83,Sweden;

    Environmental Chemistry,Umea University, SE-901 87 Umea,Sweden,UMEVA,SE-901 84 Umea,Sweden, and Astra Zeneca R&D,Molndal,SE-431 83,Sweden;

    Environmental Chemistry,Umea University, SE-901 87 Umea,Sweden,UMEVA,SE-901 84 Umea,Sweden, and Astra Zeneca R&D,Molndal,SE-431 83,Sweden;

  • 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 环境化学;
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