Remediation of Per- and Polyfluoroalkyl Substances using Colloidal Activated Carbon

使用胶体活性炭修复全氟烷基和多氟烷基物质

• 批准号: 548973-2019
• 负责人: Pham, Anh
• 金额: $ 7.07万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=722525
• 关键词: Remediation; Per; Polyfluoroalkyl; Substances; using

This project will develop an innovative in situ technology for the remediation of sites contaminatedwith per- and polyfluoroalkyl substances (PFAS) across Canada. PFAS are used in a variety of industrial and commercial products, including adhesives, cosmetics, cleaning products, aqueous film-forming foams, as well as water-, stain-, and oil-resistant coatings for fabrics, paper, and furniture. The two most common PFAS, perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), are emerging groundwater contaminants and pose widespread risks to drinking water resources in Canada and many countries worldwide. Although there are other PFAS typically detected in groundwater, current remediation efforts focus mostly on PFOS and PFOA. Due to their toxicity, cleanup criteria at the low part per trillion levels have been established in some regions, or are expected to be established in the near future.In this project, we will investigate the remediation of PFAS in situ based on Colloidal Activated Carbon (CAC). CAC consists of micron-sized particles of activated carbon that can be injected into the subsurface to create a stationary barrier zone that can adsorb PFAS compounds and remove them from the groundwater in situ. The outcome of this research will be an effective and robust in situ technology for the remediation of PFAS-contaminated sites in Canada and around the world. This will provide the collaborating industry partners with a substantial advantage in the emerging market for PFAS remediation. The project will also train fourteen highly qualified personnel in skills in environmental engineering and groundwater remediation.

该项目将开发一种创新的原位技术，用于修复加拿大各地受全氟烷基物质和多氟烷基物质 (PFAS) 污染的场地。 PFAS 用于各种工业和商业产品，包括粘合剂、化妆品、清洁产品、水性成膜泡沫，以及织物、纸张和家具的防水、防污、防油涂层。全氟辛烷磺酸 (PFOS) 和全氟辛酸 (PFOA) 是两种最常见的 PFAS，是新兴的地下水污染物，对加拿大和全球许多国家的饮用水资源构成广泛的风险。尽管地下水中通常会检测到其他 PFAS，但目前的修复工作主要集中在 PFOS 和 PFOA 上。由于其毒性，一些地区已制定或预计将在不久的将来制定万亿分之一低水平的净化标准。在本项目中，我们将研究基于胶体活性炭的PFAS原位修复（CAC）。 CAC 由微米级的活性炭颗粒组成，可以注入地下，形成一个固定的屏障区域，可以吸附 PFAS 化合物并就地从地下水中去除它们。这项研究的成果将是一种有效且稳健的原位技术，用于修复加拿大和世界各地的 PFAS 污染场地。这将为行业合作伙伴在新兴的 PFAS 修复市场中提供巨大的优势。该项目还将培训14名环境工程和地下水修复领域的高素质人才。