Remediation of Fractured Bedrock Focussed on Contaminant Mass Sequestered in the Rock Matrix

破碎基岩的修复重点关注岩石基质中截存的污染物

• 批准号: 105373-2012
• 负责人: Kueper, Bernard
• 金额: $ 2.33万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=545123
• 关键词: Remediation; Fractured; Bedrock; Focussed; Contaminant

The research proposed here will allow Canada to make informed decisions regarding remediation technology selection and expectations at fractured bedrock sites impacted by organic compounds such as chlorinated solvents, polychlorinated biphenyls (PCBs), fuels (e.g., gasoline and diesel), creosote, and coal tar. These organic compounds constitute the most frequently encountered type of groundwater contaminants at sites throughout Canada, the United States and other industrialized countries around the world. Given the relatively thin cover of unconsolidated deposits (overburden) throughout much of Canada, fractured bedrock is often impacted as a result of contaminant releases at ground surface. Example Canadian sites include the occurrence of organic compounds in bedrock at Ville Mercier south of Montreal, Quebec; the occurrence of PCBs and chlorinated solvents in bedrock at Smithville, Ontario; and the occurrence of chlorinated solvents, fuels, creosote, and coal tar at numerous sites in all provinces and territories throughout Canada. Fractured bedrock is a valued resource in Canada given its ability to provide drinking water and its intimate connection with the hydrologic cycle. At present, very few options exist to remediate fractured bedrock sites, particularly for older sites where significant amounts of contaminant mass have diffused into the rock matrix over time. There is currently a very limited base of experience in Canada regarding the use of thermal and other in-situ remediation technologies in either unconsolidated or consolidated deposits. This research will equip stakeholders (site owners, regulators, politicians, vendors, consultants, community groups) with both realistic expectations and the knowledge required to properly implement in-situ groundwater remediation technologies at fractured bedrock sites throughout Canada. This research is not only aimed at developing and evaluating remediation technologies; it is aimed at training highly qualified personell that will have a beneficial influence on decision making throughout Canada.

这里提出的研究将使加拿大能够就受氯化溶剂、多氯联苯（PCB）、燃料（例如汽油和柴油）、杂酚油和煤焦油等有机化合物影响的裂隙基岩场地的修复技术选择和预期做出明智的决定。 这些有机化合物是加拿大、美国和世界其他工业化国家最常见的地下水污染物类型。 鉴于加拿大大部分地区松散沉积物（覆盖层）覆盖层相对较薄，破裂的基岩经常因地表污染物释放而受到影响。 加拿大遗址的例子包括魁北克省蒙特利尔以南的 Ville Mercier 的基岩中发现的有机化合物；安大略省史密斯维尔基岩中多氯联苯和氯化溶剂的存在；加拿大所有省份和地区的许多地点都出现了氯化溶剂、燃料、杂酚油和煤焦油。 裂隙基岩是加拿大的宝贵资源，因为它能够提供饮用水并与水文循环密切相关。 目前，修复断裂基岩场地的选择很少，特别是对于随着时间的推移大量污染物扩散到岩石基质中的较旧场地。 目前，加拿大在未固结或固结矿床中使用热力和其他原位修复技术的经验基础非常有限。 这项研究将为利益相关者（场地所有者、监管者、政治家、供应商、顾问、社区团体）提供现实的期望和在加拿大各地裂隙基岩场地正确实施地下水原位修复技术所需的知识。 这项研究不仅旨在开发和评估修复技术；它旨在培训高素质人才，对整个加拿大的决策产生有益的影响。