perchlorate groundwater Articles
-
Dynamics of nitrate & perchlorate in groundwater.
The Apache Powder Superfund Site is located in Cochise County, Arizona, approximately 50 miles southeast of Tucson. The site was listed on the National Priorities List pursuant to CERCLA in 1990. Principal groundwater chemicals of concern (COCs) include nitrate-nitrogen (nitrate-N) and perchlorate. Concentrations of nitrate-N exceeding 500 mg/l and 2,300 mg/l have been detected in the “shallow ...
-
Edible Oil Barriers for Treatment of Perchlorate Contaminated Groundwater
An EOS® biobarrier was designed and implemented to remediate perchlorate contaminated groundwater. The report describes the site characterization, design steps, implementation, monitoring results and lessons learned from this effective remedial approach. EXECUTIVE SUMMARYThis final technical report documents the demonstration of emulsified edible oils for remediation of perchlorate in ...
By Redox Tech
-
Novel perchlorate treatment at Edwards sparks national interest
Untitled Document People from across the nation came to Edwards on May 14 to see a new perchlorate treatment system being tested here. Associated with the use of rocket fuels at Edwards, perchlorate can cause thyroid problems and is a contaminant of concern nationwide. Approximately 80 people representing the Department of Defense, federal, state and regional regulatory ...
-
Protocol for Enhanced In Situ Bioremediation Using Emulsified Edible Oil
An in-depth discussion of the EOS® patented technology and its usefulness for site remediation is presented. Details of how the technology works, design considerations as well as strengths and limitations of the technology are presented. 1.1 INTRODUCTION Management of groundwater contaminated with chlorinated solvents, perchlorate, and explosives is one of the Department of Defense’s ...
By Redox Tech
-
In Situ Remediation of Perchlorate in Soil and Groundwater, M.S. Thesis, California State University San Bernardino
This research project documents a technology assessment for in-situ bioremediation of perchlorate (ClO4-). The main goals are to compare methodologies, perform site characterization of soil and groundwater, and perform microcosm and bench scale tests. In this approach, perchlorate is reduced to chloride, requiring an electron donor. The suitability of electron donor amendments will be assessed ...
By Redox Tech
-
In-Situ Anaerobic Remediation of Perchlorate-Impacted Soils
AbstractARCADIS is currently leading the development, evaluation, and selection of a final groundwater remedy for a 94-acre manufacturing facility in the western U.S. This facility has produced small explosives and vehicular safety products since 1957. As a result of historic operations, soil and groundwater at the site have been impacted by perchlorate. To date, remediation efforts have been ...
By Arcadis
-
DOD Compares Benefits of Active and Semi-Passive Biobarriers
Current ESTCP demonstrations are examining design, construction, and performance elements of a semi-passive barrier at the Longhorn Army Ammunition Plant (AAP) in Karnack, TX, and those of an active barrier at the Navy Industrial Reserve Ordnance Plant (NIROP) in West Valley City, UT. DOD’s upcoming guidance manual for characterizing and remediating perchlorate-contaminated ground water will ...
By Redox Tech
-
Nitrate and Perchlorate Bioremediation in Ground Water
In Situ Bioremediation Eliminated Pump and Treat and Ion-Exhange Treatment Cost Site closure reached in less than half the time and at less than half the cost CL-Out bioremediation was implemented at a confidential manufacturing site to remediate nitrate and perchlorate concentrations in soil and ground water. A pump and treatment system was installed and operated for years in immediate response ...
-
Treatment of Perchlorate and 1,1,1-Trichloroethane in Groundwater using Edible Oil Substrate (EOS®)
ABSTRACT: Laboratory studies and a pilot-scale field test are being conducted to evaluate the use of edible oil emulsions for biodegradation of perchlorate and 1,1,1-trichloroethane (1,1,1-TCA) in groundwater at a site in Maryland. The patented Edible Oil Substrate (EOS®) process is a cost-effective approach for stimulating in situ anaerobic biodegradation with little or no operation and ...
By Redox Tech
-
Concurrent bioremediation of perchlorate and 1,1,1-trichloroethane in an emulsified oil barrier
Abstract A detailed field pilot test was conducted to evaluate the use of edible oil emulsions for enhanced in situ biodegradation of perchlorate and chlorinated solvents in groundwater. Edible oil substrate (EOS®) was injected into a line of ten direct push injection wells over a 2-day period to form a 15-m-long biologically active permeable reactive barrier (bio-barrier). Field monitoring ...
By Redox Tech
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you