Enhanced Chlorinated Solvent Degradation by Nanoparticles of Zero Valent Iron Emplaced in Granular Activated Carbon

颗粒活性炭中的零价铁纳米粒子增强氯化溶剂的降解

• 批准号: 479046-2015
• 负责人: Ghoshal, Subhasis
• 金额: $ 1.82万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=579909
• 关键词: Enhanced; Chlorinated; Solvent; Degradation; Nanoparticles

Chlorinated solvent compounds such as tetrachloroethylene and trichloroethylene are toxic and potentially carcinogenic and are encountered in sites contaminated by industrial activity. The industrial partner, Sanexen, is actively engaged in remediation and management of chlorinated solvent-contaminated groundwater of several sites in Canada and is seeking improved cost-effectiveness of their operations at those sites which involve removal of chlorinated solvents using activated carbon. Chlorinated compounds can be effectively removed by sorption into activated carbon during groundwater remediation. However, activated carbon has a fixed sorption capacity and requires replacement and regeneration of the spent activated carbon. If chlorinated compounds sorbed into the activated carbon can be simultaneously and rapidly degraded, the need for regeneration of activated carbon would be significantly reduced leading to substantial cost savings and efficiency in the remediation process for Sanexen. The research will investigate if embedding zero valent iron nanoparticles into the activated carbon can achieve this. The nano iron-activated carbon composites will be tested for its efficiency of degradation of chlorinated solvent compounds in soil and groundwater samples from Sanexen's sites. The research will directly enrich Sanexen's knowledge and expertise in remediation of contaminated sites, and if the research results are promising will to the development of cost effective methods for improvement of soil and water quality in Canadian sites where industrial activity in the past has led to environmental degradation.

氯化溶剂化合物如四氯乙烯和三氯乙烯是有毒的， 致癌，并在工业活动污染的场所遇到。工业合作伙伴Sanexen， 积极从事受氯化溶剂污染的地下水的修复和管理 加拿大的几个站点，并正在寻求提高这些站点运营的成本效益， 涉及使用活性炭去除氯化溶剂。氯化物可以有效地 在地下水修复过程中通过吸附到活性炭中去除。活性炭有一个 固定的吸附能力，需要更换和再生用过的活性炭。如果氯化 吸附到活性炭中的化合物可以同时快速降解，因此需要 将显著减少活性炭的再生，从而显著节省成本， Sanexen的补救过程效率。这项研究将调查是否嵌入零价铁 将纳米颗粒引入活性炭中可以实现这一点。纳米铁-活性炭复合材料 测试了其降解土壤和地下水样品中氯化溶剂化合物的效率， Sanexen的网站该研究将直接丰富Sanexen在修复方面的知识和专业知识， 污染场地，如果研究结果是有希望的，将开发成本效益的方法 改善加拿大过去工业活动导致的土壤和水质， 环境退化