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首页> 外文期刊>Environmental Science & Technology >Impacts of Shale Gas Wastewater Disposal on Water Quality in Western Pennsylvania
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Impacts of Shale Gas Wastewater Disposal on Water Quality in Western Pennsylvania

机译：页岩气废水处理对宾夕法尼亚州西部水质的影响

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摘要

The safe disposal of liquid wastes associated with oil and gas production in the United States is a major challenge given their large volumes and typically high levels of contaminants. In Pennsylvania, oil and gas wastewater is sometimes treated at brine treatment facilities and discharged to local streams. This study examined the water quality and isotopic compositions of discharged effluents, surface waters, and stream sediments associated with a treatment facility site in western Pennsylvania. The elevated levels of chloride and bromide, combined with the strontium, radium, oxygen, and hydrogen isotopic compositions of the effluents reflect the composition of Marcellus Shale produced waters. The discharge of the effluent from the treatment facility increased downstream concentrations of chloride and bromide above background levels. Barium and radium were substantially (＞90%) reduced in the treated effluents compared to concentrations in Marcellus Shale produced waters. Nonetheless, ~(226)Ra levels in stream sediments (544-8759 Bq/kg) at the point of discharge were ～200 times greater than upstream and background sediments (22-44 Bq/kg) and above radioactive waste disposal threshold regulations, posing potential environmental risks of radium bioaccumulation in localized areas of shale gas wastewater disposal.
机译：在美国，与石油和天然气生产相关的液体废物的安全处置是一项重大挑战，因为它们的体积大且污染物含量高。在宾夕法尼亚州，石油和天然气废水有时会在盐水处理设施中进行处理，然后排放到当地溪流中。这项研究检查了宾夕法尼亚州西部与处理设施相关的排出水，地表水和河流沉积物的水质和同位素组成。废水中氯化物和溴化物的含量升高，加上锶，镭，氧和氢的同位素组成，反映了马塞勒斯页岩产水的组成。从处理设施排出的废水使下游的氯化物和溴化物浓度增加到高于本底水平。与Marcellus页岩采出水中的浓度相比，处理过的废水中的钡和镭含量显着降低（> 90％）。然而，在排放点，流沉积物中的〜（226）Ra水平（544-8759 Bq / kg）是上游和背景沉积物（22-44 Bq / kg）的〜200倍，并且高于放射性废物处置阈值规定，在页岩气废水处理局部地区造成镭生物富集的潜在环境风险。

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  • 来源
    《Environmental Science & Technology》 |2013年第20期|11849-11857|共9页
  • 作者

    Nathaniel R. Warner; Cidney A. Christie; Robert B. Jackson; Avner Vengosh;

  • 作者单位

    Department of Earth Sciences, Dartmouth College, Hanover,NH 03755, United States;

    Division of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University, Durham, North Carolina 27708, United States;

    Division of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University, Durham, North Carolina 27708, United States;

    Division of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University, Durham, North Carolina 27708, 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);
  • 原文格式 PDF
  • 正文语种 eng
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