Cost And Performance Report Evaluating the Longevity and Hydraulic Performance of Permeable Reactive Barriers at Department of Defense Sites

摘要

The goal of this project was to evaluate short-and long-term performance issues associated with permeable reactive barriers (PRBs) installed at several United States Department of Defense (DoD) sites. A PRB is a passive, in situ technology, in which natural groundwater flow brings contaminants into contact with a reactive or adsorptive material that removes the dissolved contaminants and protects downgradient receptors. Therefore, PRBs have potentially lower life cycle costs compared to a equivalent pump-and treat system. The key regulatory driver for the technology is the proven ability of common barrier materials, such as elemental iron, to interest in this project was driven by the two challenges involved in implementing PRBs, namely, their longevity and hydraulic performance.