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

这里提议的研究将使加拿大能够就受有机化合物（如氯化溶剂、多氯联苯（PCB）、燃料（例如，汽油和柴油）、杂酚油和煤焦油。 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。 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，地表污染物释放往往会影响断裂基岩。 加拿大的实例包括魁北克蒙特利尔南部的Ville Mercier的基岩中出现有机化合物;安大略的Smithville的基岩中出现多氯联苯和氯化溶剂;以及加拿大所有省份和地区的许多地点出现氯化溶剂、燃料、杂酚油和煤焦油。 断裂基岩是加拿大的一种宝贵资源，因为它能够提供饮用水，而且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已扩散到岩石基质中的较老场地。 目前，加拿大在松散或固结矿床中使用热能和其他原地补救技术方面的经验基础非常有限。 这项研究将使利益相关者（场地所有者，监管机构，政治家，供应商，顾问，社区团体）既有现实的期望，又有在加拿大各地的断裂基岩场地适当实施原位地下水修复技术所需的知识。 这项研究不仅旨在开发和评估补救技术;它的目的是培训高素质的人才，这将对整个加拿大的决策产生有益的影响。

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.**********