Supercritical fluid extraction for the remediation of soils contaminated with heavy metals and organics

超临界流体萃取修复受重金属和有机物污染的土壤

• 批准号: 217057-2007
• 负责人: Guigard, Selma
• 金额: $ 1.24万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=477881
• 关键词: Supercritical; fluid; extraction; remediation; soils

In recent years, more land has become contaminated with organic compounds such as oil, gasoline, pesticides, PCBs and explosives as well as inorganic compounds such as heavy metals and radioactive compounds. These contaminated lands pose a threat to the environment and to public health. The contaminants can move into the air we breathe. They can also move into the water we drink and use for recreational purposes. Contaminants in soil may also find their way into the food chain through plants or animals that have been exposed to the contaminated soil. These sites also pose an economic burden since contaminated sites remain unused and therefore represent a loss in potential revenue through property taxes, etc.

近年来，越来越多的土地受到石油、汽油、农药、多氯联苯和爆炸物等有机化合物以及重金属和放射性化合物等无机化合物的污染。这些受污染的土地对环境和公众健康构成威胁。污染物会进入我们呼吸的空气。它们还可以进入我们饮用和娱乐的水中。土壤中的污染物也可能通过暴露于受污染土壤的植物或动物进入食物链。这些场址还造成经济负担，因为受污染的场址仍未得到利用，因此损失了财产税等潜在收入。