Comparative Demonstration of Active and Semi-Passive In Situ Bioremediation Approaches for Perchlorate-Impacted Groundwater (Longhorn Army Ammunition Plant)
Abstract
Perchlorate is an inorganic anion that consists of chlorine bonded to four oxygen atoms. It is a primary ingredient in solid rocket propellant and has been used for decades by Department of Defense (DoD), National Aeronautics and Space Administration (NASA), and the defense industry in the manufacturing, testing, and firing of rockets and missiles. Perchlorate exhibits high solubility and mobility in water and has been identified in groundwater at numerous sites across the U.S. at concentrations above the upper limit of U.S. Environmental Protection Agency's (USEPA's) provisional cleanup guidance for perchlorate of 18 parts per billion (ppb). Enhanced In Situ bioremediation (EISB) of perchlorate impacted groundwater offers the potential to treat and destroy perchlorate without the need for disposal of residuals containing recovered perchlorate (as with above ground ion exchange) or extensive above ground treatment (as with Ex Situ bioremediation). This Report describes work conducted to demonstrate/validate the use of a semi-passive EISB approach at the Longhorn Army Ammunition Plant (LHAAP) in Texas. The goal of this work was to demonstrate the efficacy of this approach at a scale that is large enough to generate accurate full-scale design and cost information for widespread technology consideration and application at DoD and related sites.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2009
- Accession Number
- ADA512816
Entities
People
- David Bertrand
- Evan Cox
- Thomas Krug
Organizations
- Geosyntec Consultants (United States)