Characterizing Groundwater Contamination Before and During Remediation

修复之前和期间的地下水污染特征

• 批准号: 9222116
• 负责人: Dennis McLaughlin
• 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: 1993
• 资助国家: 美国
• 起止时间: 1993-03-15 至 1997-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9222116&HistoricalAwards=false
• 关键词: Characterizing; Groundwater; Contamination; Before; During

This is an award to support research on predicting the motion of groundwater contaminant plumes taking systematically into account the variability and uncertainties about the source of the contamination. The site characterization procedure may be used to assess the extent and severity of contamination before remediation begins and to evaluate progress during remediation. The procedure to be developed is based on Bayesian estimation techniques that combine field measurements with predictions from a stochastic groundwater model that provides estimates of the mean and variance of solute concentration throughout a contaminated site that are revised whenever new measurements of hydraulic conductivity, pressure head and/or contaminant concentration become available. This research is related to a project previously supported under NSF Grant No. 85-14987. It complements research the investigator is conducting with support from the National Institute of Environmental Health Sciences on field studies to characterize the role of sorption on removing contaminants from groundwater. Results of this project are expected to be used to improve the engineering design and operation of systems to decontaminate groundwater aquifers.

这一奖项旨在支持系统地考虑到污染源的可变性和不确定性的情况下，预测地下水污染物羽流运动的研究。现场表征程序可用于在修复开始之前评估污染的程度和严重性，并在修复过程中评估进展。将要开发的程序是基于贝叶斯估计技术，该技术将现场测量与随机地下水模型的预测相结合，该模型提供对平均值的估计以及整个污染场地的溶质浓度变化，每当有新的水力传导性测量时，这些变化都会被修正，压力水头和/或污染物浓度可用。这项研究是与以前由国家科学基金资助的一个项目有关的。85-14987。它补充了研究人员在国家环境健康科学研究所的支持下进行的实地研究，以确定吸附在从地下水中去除污染物方面的作用。该项目的成果可望用于改善地下水含水层净化系统的工程设计和运行。