A Review on Current Situation of Groundwater Pollution from Shale Oil and Gas Extraction
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1.College of Civil Engineering, Tongji University, Shanghai 200092, China;2.Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai 200444, China;3.College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;4.Department of Civil, Architectural and Environmental Engineering, University of Texas at Austin, Austin, TX 78712, United States

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X523;X592;TD83

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    Abstract:

    The extraction of shale oil and gas produces a large number of waste materials that are generally discharged into the groundwater environment, causing contamination of groundwater which threatens human health. First, the distribution and storage mechanism of shale oil and gas, as well as the extraction technologies, which include oil shale retorting, horizontal drilling, and hydraulic fracturing, are introduced. Then, various events that may cause groundwater pollution and the main sources of contamination in the extraction processes, which consist of preparations, drilling and fracturing, and capture of shale oil and gas, are summarized. Afterwards, three types of groundwater pollutants caused by shale oil and gas exploitation, which are organic contaminants, heavy metals, and radioactive material, are discussed, and the characteristics of groundwater contamination are expounded. Finally, the prospect of groundwater pollution research in the exploitation of shale oil and gas is proposed from the perspectives of technological improvement and waste treatment.

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ZOU Jiajie, DAI Chaomeng, HAN Yueming, HU Jiajun, ZHANG Yalei, LIU Shuguang, ZHOU Lang. A Review on Current Situation of Groundwater Pollution from Shale Oil and Gas Extraction[J].同济大学学报(自然科学版),2024,52(5):796~804

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History
  • Received:July 23,2022
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  • Online: May 24,2024
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