Pollutant Exchange Processes at Active Water-Sediment Interfaces

活性水-沉积物界面的污染物交换过程

• 批准号: 9421491
• 负责人: Norman Brooks
• 金额: $ 39.18万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-03-15 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9421491&HistoricalAwards=false
• 关键词: Pollutant; Exchange; Processes; Active; Water

9421491 Brooks This is an award to support research, the objective of which is to obtain an understanding of the fundamental physical and chemical processes that control the interchange of substances in alluvial sediments of flowing water streams with the water as affected by the sediment bed forms such as ripples and dunes. The basic approach being taken in this research is the conduct of experiments in recirculating laboratory flumes under very carefully controlled conditions of flow, water quality, the bed media and the nature of the substances dissolved or in particulate form being exchanged at the bed-fluid interface. This is a renewal of research previously conducted under NSF Grant No. 91-05965. Results of this research may be applied to answering important questions relating to the pollutional effects that substances in bottom sediments of water bodies have on the overlying water quality. This knowledge is likely to be applied in environmental engineering practice to determine approaches to removal of potential water pollutants and contaminants from sediments and in determining locations for wastewater treatment plants that would minimize the undesirable effects on environmental quality of their effluent discharges and management practices for residual sludges. ***

9421491布鲁克斯这是一个支持研究的奖项，其目的是了解控制流动水流冲积沉积物中物质与受沉积物床形式（如波纹和沙丘）影响的水交换的基本物理和化学过程。 本研究采取的基本方法是 在对水流、水质、床层介质和溶解物质的性质或在床层-流体界面处交换的颗粒形式的物质的性质进行非常仔细控制的条件下，在再循环实验室水槽中进行实验。 这是先前在NSF资助号91-05965下进行的研究的更新。 这项研究的结果可以应用于 回答了与水体底部沉积物中的物质对上覆水质的污染影响有关的重要问题。 这方面的知识很可能被应用在环境工程实践中，以确定从沉积物中去除潜在的水污染物和污染物的方法，并确定废水处理厂的位置，以最大限度地减少其废水排放对环境质量的不良影响，以及剩余污泥的管理方法。 ***