Advances in Permeable Reactive Barrier Technologies
Abstract
Permeable reactive barriers (PRBs) are passive groundwater treatment systems that decontaminate groundwater as it flows through a permeable treatment medium under natural gradients. PRBs currently are being used to treat a wide variety of groundwater contaminants, including chlorinated solvents, other organics, metals, inorganics, and radionuclides. Zero-valent iron currently is the most common reactive material used in a PRB, but a variety of other adsorptive, reactive, and biodegradation-enhancing materials also are being used. Advantages of PRB treatment systems include: (1) In situ remediation; (2) Passive operation; (3) No required aboveground structures; (4) Potentially less expensive than pump-and- treat systems in the long term PRB technologies are advancing rapidly, as the treatment method gains popularity as an alternative to pump-and-treat systems. In tact, permeable barriers have evolved into a whole new class of technologies, as new PRB configurations and new barrier media are being developed to treat a variety of contaminants, including solvents, metals, and radio-nuclides.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 2002
- Accession Number
- ADA410697
Entities
Organizations
- Naval Facilities Engineering Service Center