Long term contaminant migration performance evaluation of engineered barrier systems

该计划将通过工程屏障系统研究不同微生物和有机污染物的长期污染物迁移性能。这项工作的主要应用将是在设计前阶段对受污染场址或封闭设施的适当屏障系统进行评估，与其他可能的技术进行数量比较。从研究中获得的知识还将提供信息，可以为泻湖、垃圾填埋场、受污染地点等提供更具成本效益但同样可靠的工程屏障系统。该研究计划分为两个主要主题：1)微生物通过gcl的迁移，以及2)有机污染物通过含有煤粉煤灰的土壤水泥混合物的迁移。对这些主题领域的文献回顾发现，目前存在信息匮乏。

The proposed program will investigate the long term contaminant migration performance of different microbial and organic contaminants through engineered barrier systems. The main application of this work will be in the pre-design stage assessment of appropriate barrier systems for contaminated sites or containment facilities in terms of quantitative comparisons with other potential technologies. The knowledge gained from the research will also provide information which could lead to more cost effective, yet equally reliable engineered barrier systems for lagoons, landfills, contaminated sites, etc. The research program is subdivided into two main themes: 1) microbial transport through GCLs, and, 2) organic contaminant transport through soil cement mixtures containing coal fly ash. A literature review of these theme areas found a paucity of information currently exists.