chlorinated compounds Articles
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Chlorinated Compound - TCE Alabama - Case Study
Accelerated Remediation Technologies, Inc. (ART) in-situ treatment system was selected by a major industrial firm to treat soils and groundwater impacted with chlorinated compounds, mainly TCE, at a site in Anniston, Alabama. The ART technology was installed in nine, six inch wells within the source area. An extensive monitoring program was implemented to evaluate the performance of the ART ...
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Fractured Bedrock Formation PCE, Pennsylvania - Case Study
The Accelerated Remediation Technologies, LLC, (ART) Integrated Remediation Technology was installed at an operating, industrial laundry facility to remedy groundwater in a fractured bedrock geologic formation. Contaminant(s) of concern: PCE Site Description: The site is located in eastern Pennsylvania and the subsurface consists of silty clay to depths ranging from 10 to 60 feet underlain by ...
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Andover Case Study (C3 Technology)
In this case study in Andover, Vapor Extraction and Refrigerated Condensation was used as a primary source removal technology to remediate high concentrations of recalcitrant chlorinated solvent compounds at the WDE Site in Minnesota. The use of Refrigerated Condensation has achieved high mass removal rates and will reduce the lifecycle costs and time of remediation. Over 6500 drums of hazardous ...
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Remediation of PCE belowgrade in an active alley southside Chicago, IL
Under contract to Malcolm Pirnie, TRS Group, Inc. (TRS) designed, installed and operated the ERH remediation system at this dry cleaner facility in an active alley behind a shopping mall. The goal of the remediation project was to reduce tetrachloroethene (PCE) concentrations in soil to less than 11 milligrams per kilogram (mg/kg). While site soil also contained other chlorinated volatile organic ...
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TerraStryke Erdenhanced In-Situ Passive Pilot Study Chlorinated DNAPL Source Zone Former Dry Cleaner Operations, Stoney Creek, Ontario, Canada - Case Study
TerraStryke Products LLC (TerraStryke) develop-distribute biostimulation additives proven to cost-effectively enhance chlorinated volatile organic compound (cVOC) biotransformation safely and completely. Our patented biostimulation additive ERDENHANCED leverages existing biogeochemical conditions to facilitate chlorinated alkane/alkene destruction. ERDENHANCED is proven to expedite residual mass ...
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In Situ Chemical Oxidation Remediation Pilot Study Of A Karst Bedrock Aquifer Contaminated With Chlorinated Solvents
ABSTRACT A pilot study to evaluate an innovative in situ treatment technology was implemented at Letterkenny Army Depot, Chambersburg, Pennsylvania, for a limestone bedrock aquifer contaminated with chlorinated solvents. This technology destroys VOCs in groundwater, utilizing a network of injection points to deliver a solution of hydrogen peroxide (50%), catalysts, and surfactants. The ...
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Thermally activated persulfate oxidation of NAPL chlorinated organic compounds: effect of soil composition on oxidant demand in different soil-persulfate systems
This study investigates the interaction of persulfate with soil components and chlorinated volatile organic compounds (CVOCs), using thermally activated persulfate oxidation in three soil types: high sand content; high clay content; and paddy field soil. The effect of soil composition on the available oxidant demand and CVOC removal rate was evaluated. Results suggest that the treatment ...
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Mechanisms and strategies of microbial cometabolism in the degradation of organic compounds – chlorinated ethylenes as the model
The universal microbial cometabolism provides us with an effective approach to remove man-made xenobiotics. However, the cometabolic bioremediation of toxic organic compounds has not been widely initiated due to the obscure underlying fundamentals in the studies or applications of microbial cometabolism. This review summarizes the current research trends in mechanistic understanding of ...
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Case study - Mobile remediation system
OVERVIEW A large consulting and contracting firm owns and operates several ex-situ Thermal Desorption Units (TDUs). Each single-load Thermal Desorption Unit has the capacity of desorbing 15 tons of soil per hour at a temperature of 400°F - 900°F. These Thermal Desorber Units have been designed to operate on both chlorinated and non-chlorinated RCRA, CERCLA, and private industry sites. ...
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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
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Soil and groundwater remediation
At a site in northern Indiana on behalf of a multinational client, Troy Risk operated a groundwater remediation system to cleanup the source of chlorinated solvent impact to a groundwater aquifer system. Prior to 1988, the site was occupied by a manufacturing facility. In March 1995, chlorinated volatile compounds (CVOCs) were detected pursuant to due diligence for real estate refinancing. From ...
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Seattle, WA - Active chemical distribution facility - Case Study
Guaranteed Remediation of TCE and PCE under Active Facility Project Summary TRS Group, Inc. (TRS) working with FLOYD|SNIDER a local Seattle consulting firm, completed a guaranteed fixed price remediation (GFPR) of tetrachloroethene (PCE) and trichloroethene (TCE) in soil at an active bulk chemical warehouse and distribution facility in Seattle, Washington. This contaminant source area ...
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San Diego - Hydrolysis remediation of TCA/TCE in soil and groundwater - Case Study
Hydrolysis remediation using ERH Project Summary TRS Group, Inc. designed and implemented an electrical resistance heating (ERH) system to reduce concentrations of chlorinated volatile organic compounds (CVOCs) in soil and groundwater at a site in San Diego, California, Chlorinated solvents including 1,1,1-trichloroethane (TCA) and trichloroethene (TCE) had impacted the soil and groundwater ...
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Bioaugmentation to Treat Chlorinated Solvents in Fractured Bedrock
ABSTRACT: An in situ bioremediation pilot study was performed at a former industrial site in New Jersey where groundwater has been impacted by historical releases of chlorinated solvents. The target area for treatment is a fractured, intermediate bedrock zone. The remedial objective at the Site is to treat the groundwater while minimizing the impact of the remedial system on the re-development of ...
By Redox Tech
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Case study - Ozone sparging closure of an industrial VOC spill site adjacent to a water supply well site
Description An undocumented surface spill at an active manufacturing facility located adjacent to a public water supply well field released chlorinated volatile organic compounds (PCE, and its breakdown products: TCE, c-DCE, and VC) into soils and groundwater. The driver for site cleanup was three water supply wells located 200 feet downgradient of the site bounds. The chosen endpoint ...
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Enhanced Anaerobic Bioremediation of a TCE Source at the Tarheel Army Missile Plant Using EOS
EOS, or emulsified oil substrate, was used to stimulate anaerobic biodegradation of trichloroethene (TCE) and tetrachloroethene (PCE) at a former Army-owned manufacturing facility located in the Piedmont area of North Carolina. Previous use of chlorinated solvents at the facility resulted in soil and groundwater impacts. Ten years of active remediation utilizing soil vacuum extraction and air ...
By Redox Tech
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Site Closure Strategies: Reducing Remediation Liabilities & Costs
Industrial companies face the daunting task of managing investigations and clean-ups at thousands of contaminated properties. In staying abreast of new technology and ever-evolving regulatory programs, companies must address many challenges involving regulations, technologies, and expenses. To successfully manage the costs and risks for each project, it is important to: 1) Focus on the ultimate ...
By AECOM
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