Because of the limitations of conventional pump-and-treat systems in treating groundwater contaminants, permeable barriers are potentially more cost-effective than pump-and-treat systems for treating dissolved chlorinated solvent plumes, which may persist in the saturated zone for several decades. Other contaminants, such as chromium or other soluble heavy metals, can also be treated with this technology. Permeable Barriers for Groundwater Remediation discusses the types of permeable barriers, their design and construction, and how they can be monitored to evaluate compliance. It provides practical guidance on reactive media selection, treatability testing, hydrogeologic and geochemical modeling, and innovative installation techniques for the evaluation and application of this promising new technology. The types of permeable barriers discussed include trench-type and caisson-based reactive cells; innovative emplacements, such as horizontal trenching and jetting; and continuous reactive barriers versus funnel-and-gate systems. The material is organized in an easy-to-read format, with topics and illustrations that will be useful to readers already familiar with barriers, and to those just being introduced to the technology.
Acknowledgments
Figures
Tables
Abbreviations, Acronyms, and Symbols
Chapter 1 : Technology Background and Status Chapter 2 : Site Characterization Data Chapter 3 : Reactive Media Selection Chapter 4 : Treatability Testing Chapter 5 : Modeling to Support the Permeable Barrier Design Chapter 6 : Emplacement Techniques for Permeable Barrier Installation Chapter 7 : Monitoring the Performance of a Permeable Barrier Chapter 8 : Permeable Barrier Economics Chapter 9 : Summary of the Design and Implementation Methodology Chapter 10 : References
Appendices
A : Additional Site Characterization and Monitoring Issues
B : Supporting Information for Hydrogeologic Modeling
C : Supporting Information for Geochemical Modeling
D : Construction Quality Control
Index