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首页> 外文期刊>Environmental Science & Technology >Radium and Barium Removal through Blending Hydraulic Fracturing Fluids with Acid Mine Drainage
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Radium and Barium Removal through Blending Hydraulic Fracturing Fluids with Acid Mine Drainage

机译：通过将压裂液与酸性矿井排水混合来去除镭和钡

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摘要

Wastewaters generated during hydraulic fracturing of the Marcellus Shale typically contain high concentrations of salts, naturally occurring radioactive material (NORM), and metals, such as barium, that pose environmental and public health risks upon inadequate treatment and disposal. In addition, fresh water scarcity in dry regions or during periods of drought could limit shale gas development. This paper explores the possibility of using alternative water sources and their impact on NORM levels through blending acid mine drainage (AMD) effluent with recycled hydraulic fracturing flowback fluids (HFFFs). We conducted a series of laboratory experiments in which the chemistry and NORM of different mix proportions of AMD and HFFF were examined after reacting for 48 h. The experimental data combined with geochemical modeling and X-ray diffraction analysis suggest that several ions, including sulfate, iron, barium, strontium, and a large portion of radium (60- 100%), precipitated into newly formed solids composed mainly of Sr barite within the first ～10 h of mixing. The results imply that blending AMD and HFFF could be an effective management practice for both remediation of the high NORM in the Marcellus HFFF wastewater and beneficial utilization of AMD that is currently contaminating waterways in northeastern U.S A.
机译：在Marcellus页岩的水力压裂过程中产生的废水通常含有高浓度的盐，天然存在的放射性物质（NORM）和金属（如钡），如果处理和处置不当，就会对环境和公共健康构成威胁。此外，干旱地区或干旱期间的淡水短缺可能会限制页岩气的开发。本文探讨了通过将酸性矿山排水（AMD）废水与循环水力压裂返排液（HFFFs）混合来使用替代水的可能性及其对NORM水平的影响。我们进行了一系列实验室实验，在反应48小时后检查了AMD和HFFF不同混合比例的化学性质和NORM。与地球化学模型和X射线衍射分析相结合的实验数据表明，包括硫酸根，铁，钡，锶和大部分镭（60-100％）在内的数种离子沉淀到了新形成的主要由Sr重晶石组成的固体中在混合的最初〜10小时内。结果表明，将AMD和HFFF掺混可能是一种有效的管理实践，既可以补救Marcellus HFFF废水中的高NORM，又可以有效利用目前正在污染美国东北水道的AMD。

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  • 来源
    《Environmental Science & Technology》 |2014年第2期|1334-1342|共9页
  • 作者

    Andrew J. Kondash; Nathaniel R. Warner; Ori Lahav; Avner Vengosh;

  • 作者单位

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

    Civil and Environmental Engineering, Technion, Haifa 32000, Israel;

    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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