Title: Field Application of a Permeable Reactive Barrier for Treatment of Arsenic in Ground Water 
Resource Type: document --> case study 
Country: USA 
Year: 2008 
Availability: EPA 600-R-08-093 
Author 1/Producer: US Environmental protection Agency (US EPA) 
Author / Producer Type: Agency, regulator or other governmental or inter-governmental body 
Report / download web link (=direct link): http://www.epa.gov/nrmrl/pubs/600r08093/600r08093.pdf  
Format (e.g. PDF): PDF 
Size: (e.g. 20mb) 4.3 
EUGRIS Keyword(s): Contaminated land-->Remediation options-->Permeable reactive barriers
 
Short description: In June 2005, a pilot-scale PRB containing granular iron was installed at a former metal smelting facility near Helena, MT, to treat ground water contaminated with concentrations (>25 mg/L) of arsenite and arsenate. The barrier is 9.1 m long, 14 m deep, and 1.8 to 2.4 m wide (in the direction of ground-water flow). Within the PRB, As concentrations are 2 to <0.01 mg/L. After 2 years of operation, significant decreases in As concentrations are evident. This report covers site characterization, remedial design and implementation, and monitoring results for this pilot-scale 
Link to Organisation(s): EPA Environmental Protection Agency
 
Submitted By: Professor Paul Bardos WhoDoesWhat?      Last update: 08/04/2009

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