Studies of Sedimentary Porewater Colloids and Their Impact on the Transport of Organic Chemicals

沉积孔隙水胶体及其对有机化学物质输运影响的研究

• 批准号: 8714110
• 负责人: Philip Gschwend
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-11-01 至 1991-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8714110&HistoricalAwards=false
• 关键词: Studies; Sedimentary; Porewater; Colloids; Their

This project is aimed at obtaining a better understanding than now exists of the role played by natural colloids that are present in interstitial water of sediments in the transport of organic chemical pollutants of natural waters. This knowledge is expected to permit the construction of improved chemical transport models that can be used to predict the fate of organic chemicals that tend to become associated with sediments in lakes and streams. The specific chemical compounds being addressed in this research are the polychlorinated biphenyls and the polyaromatic hydrocarbons. The expected improvements in chemical transport models will assist in clarifying assumptions made regarding the accessibility of the target chemicals to biological uptake and biodegradation.

该项目旨在更好地了解 现在存在的天然胶体所发挥的作用， 存在于沉积物的间隙水中， 天然沃茨的有机化学污染物。 这种知识是 预计将允许建设改进的化学品 运输模型，可用于预测的命运，有机 这些化学物质往往与湖泊中的沉积物有关， 和溪流。 具体的化合物在 本研究是多氯联苯和 多环芳烃 化学品的预期改进 运输模型将有助于澄清假设， 关于目标化学品对生物的可及性 吸收和生物降解。