Search Result
Technology Innovation News Survey Feed (RSS)
ON-SITE TREATMENT OF A DISSOLVED CHROMIUM PLUME: FROM BENCH TRIAL TO REMEDIATION TO RESULTS
Rakewich, B. | SustainTech, 22 March, Saskatoon, Saskatchewan, 32 slides, 2018
A dissolved Cr plume originating from a nearby chrome plating facility was identified at an industrial property in Edmonton, Alberta. Soil impacts were isolated to two small source areas, but groundwater contamination was more widespread (~2,000 m2). Dissolved Cr(VI) concentrations were ≤300 mg/L and total Cr concentrations were ≤308 mg/L at the source areas, with target numerical guidelines of 0.001 mg/L and 0.0089 mg/L. Three 60-cm wells were installed with submersible pumps that used 1,550 kg ferrous sulfate (FeSO4) to treat a total of 334,700 L of groundwater. About 20,900 L injection solution was used to remediate the low-concentration plume. In situ chemical reduction using 15% FeSO4) was tested and used to remediate soil. Testing in 2017 confirmed contamination reduction by ~99% in the source area. Confirmatory soil and groundwater sampling was conducted in 2018 to confirm contamination levels were stable. https://www.seima.sk.ca/resources/Documents/SustainTech%202018%20Presentations/SustainTech%20Barry%20Rakewich%20Presentation%202018.pdf
A dissolved Cr plume originating from a nearby chrome plating facility was identified at an industrial property in Edmonton, Alberta. Soil impacts were isolated to two small source areas, but groundwater contamination was more widespread (~2,000 m2). Dissolved Cr(VI) concentrations were ≤300 mg/L and total Cr concentrations were ≤308 mg/L at the source areas, with target numerical guidelines of 0.001 mg/L and 0.0089 mg/L. Three 60-cm wells were installed with submersible pumps that used 1,550 kg ferrous sulfate (FeSO4) to treat a total of 334,700 L of groundwater. About 20,900 L injection solution was used to remediate the low-concentration plume. In situ chemical reduction using 15% FeSO4) was tested and used to remediate soil. Testing in 2017 confirmed contamination reduction by ~99% in the source area. Confirmatory soil and groundwater sampling was conducted in 2018 to confirm contamination levels were stable. https://www.seima.sk.ca/resources/Documents/SustainTech%202018%20Present
The Technology Innovation News Survey welcomes your comments and
suggestions, as well as information about errors for correction. Please
contact Michael Adam of the U.S. EPA Office of Superfund Remediation
and Technology Innovation at adam.michael@epa.gov or (703) 603-9915
with any comments, suggestions, or corrections.
Mention of non-EPA documents, presentations, or papers does not constitute a U.S. EPA endorsement of their contents, only an acknowledgment that they exist and may be relevant to the Technology Innovation News Survey audience.
