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首页> 外文期刊>Environmental Science & Technology >Persistence and Potential Effects of Complex Organic Contaminant Mixtures in Wastewater-Impacted Streams
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Persistence and Potential Effects of Complex Organic Contaminant Mixtures in Wastewater-Impacted Streams

机译：污水接触流中复杂有机污染物混合物的持久性和潜在影响

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摘要

Natural and synthetic organic contaminants in municipal wastewater treatment plant (WWTP) effluents can cause ecosystem impacts, raising concerns about their persistence in receiving streams. In this study, Lagrangian sampling, in which the same approximate parcel of water is tracked as it moves downstream, was conducted at Boulder Creek, Colorado and Fourmile Creek, Iowa to determine in- stream transport and attenuation of organic contaminants discharged from two secondary WWTPs. Similar stream reaches were evaluated, and samples were collected at multiple sites during summer and spring hydrologic conditions. Travel times to the most downstream (7.4 km) site in Boulder Creek were 6.2 h during the summer and 9.3 h during the spring, and to the Fourmile Creek 8.4 km downstream site times were 18 and 8.8 h, respectively. Discharge was measured at each site, and integrated composite samples were collected and analyzed for >200 organic contaminants including metal complexing agents, nonionic surfactant degradates, personal care products, Pharmaceuticals, steroidal hormones, and pesticides. The highest concentration (>100 μg L~(-1)) compounds detected in both WWTP effluents were ethylenediaminetetraacetic acid and 4- nonylphenolethoxycarboxylate oligomers, both of which persisted for at least 7 km downstream from the WWTPs. Concentrations of pharmaceuticals were lower (<1 μg L~(-1)), and several compounds, including carbamazepine and sulfamethoxazole, were detected throughout the study reaches. After accounting for in-stream dilution, a complex mixture of contaminants showed little attenuation and was persistent in the receiving streams at concentrations with potential ecosystem implications.
机译：市政废水处理厂（WWTP）废水中的天然和合成有机污染物会造成生态系统影响，令人担忧其在接收流中的持久性。在这项研究中，在科罗拉多州的博尔德克里克和爱荷华州的四英里克里克进行了拉格朗日采样，其中追踪了大约相同的水流，以确定两个二级污水处理厂的入流运移和有机污染物的衰减。 。在夏季和春季的水文条件下，对相似的河段进行了评估，并在多个地点采集了样本。到博尔德河最下游（7.4公里）的旅行时间在夏季为6.2小时，在春季为9.3小时，到四英里河的8.4公里下游旅行时间分别为18和8.8小时。在每个位置测量排放量，并收集集成的复合样品并分析> 200种有机污染物，包括金属络合剂，非离子表面活性剂降解物，个人护理产品，药品，甾体激素和农药。在两种污水处理厂废水中检测到的最高浓度化合物（> 100μgL〜（-1））是乙二胺四乙酸和4-壬基酚乙氧基羧酸酯低聚物，两者均在污水处理厂下游至少持续了7 km。药物浓度较低（<1μgL〜（-1）），并且在整个研究过程中都检测到了几种化合物，包括卡马西平和磺胺甲恶唑。在考虑了河流中的稀释之后，复杂的污染物混合物几乎没有衰减，并且在接收流中持续存在，浓度可能会对生态系统产生影响。

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  • 来源
    《Environmental Science & Technology》 |2013年第5期|2177-2188|共12页
  • 作者

    Larry B. Barber; Steffanie H. Keefe; Greg K. Brown; Edward T. Furlong; James L. Gray; Dana W. Kolpin; Michael T. Meyer; Mark W. Sandstrom; Steven D. Zaugg;

  • 作者单位

    U.S. Geological Survey, 3215 Marine Street, Boulder, Colorado 80303, United States;

    U.S. Geological Survey, 3215 Marine Street, Boulder, Colorado 80303, United States;

    U.S. Geological Survey, 3215 Marine Street, Boulder, Colorado 80303, United States;

    U.S. Geological Survey, Denver Federal Center, P.O. Box 25585, Denver, Colorado 80225, United States;

    U.S. Geological Survey, Denver Federal Center, P.O. Box 25585, Denver, Colorado 80225, United States;

    U.S. Geological Survey, 400 S. Clinton Street, Iowa City, Iowa 52244, United States;

    U.S. Geological Survey, 4821 Quail Crest Place, Lawrence, Kansas 66049, United States;

    U.S. Geological Survey, Denver Federal Center, P.O. Box 25585, Denver, Colorado 80225, United States;

    U.S. Geological Survey, Denver Federal Center, P.O. Box 25585, Denver, Colorado 80225, United States;

  • 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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