Chlorinated Solvents Articles

  • Remediation of Chlorinated Solvents - Case Study

    Project Location: SW Florida Client: DoE Contamination: TCE, PCE, Vinyl Chloride, Toluene Site Size: 4+ Acres Project Description: Over the ...


    By Integrity Engineering, Inc.

  • Case study - Dual-reagent ISCO “Fast-Tracks” cleanup of Orlando Brownfield

    Description: A Brownfield property impacted with chlorinated solvents was the planned location for the home of the Orlando Magic basketball team. Contaminants: Chlorinated solvent contamination was present in soil and groundwater with PCE concentrations greater than 14,000 ug/L and potential presence of DNAPL. Remedial challenge: The ...

  • E-Z Trays selected for Large scale project - Case Study

    A former industrial plant and top Superfund site in Sydney, Australia, had been in operation since the 1930s and contained chlorinated solvent contamination. Because of the size and scope of this project packed towers traditionally would have been the air stripping method of choice, but the client was concerned about the ability of workers having easy access to maintain and clean the units. They ...

  • 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 EOS Remediation, LLC

  • Performance of DNAPL source depletion technologies 2 at 59 Chlorinated solvent-impacted sites

    Abstract Performance and rebound of intensive source depletion technologies were evaluated at 59 chlorinated solvent sites where remediation targeted dense non-aqueous phase liquid (DNAPL) source zones. The four technologies included in the study are chemical oxidation, enhanced bioremediation, thermal treatment, and surfactant/cosolvent flushing. Performance was evaluated by examining ...


    By TRS Group, Inc.

  • North LA Case Study (C3 Technology)

    The project site is an industrial facility located in the foothills of northern Los Angeles, California. The facility utilized chlorinated solvents in operations. Based on soil borings, site geology consisted of unconsolidated gravely sands, sand, silty sand, sandy silt, and silt from ground surface to more than 200 feet below ground surface (bgs). Groundwater was encountered at the site at ...

  • Co‐occurrence of 1,4‐dioxane with trichloroethylene in chlorinated solvent groundwater plumes at US Air Force installations: Fact or fiction

    Increasing regulatory attention to 1,4‐dioxane has prompted the United States Air Force (USAF) to evaluate potential environmental liabilities, primarily associated with legacy contamination, at an enterprise scale. Although accurately quantifying environmental liability is operationally difficult given limited historic environmental monitoring data, 1,4‐dioxane is a known constituent (i.e., ...


    By John Wiley & Sons, Ltd.

  • pH control for enhanced reductive bioremediation of chlorinated solvent source zones

    Enhanced reductive dehalogenation is an attractive treatment technology for in situ remediation of chlorinated solvent DNAPL source areas. Reductive dehalogenation is an acid-forming process with hydrochloric acid and also organic acids from fermentation of the electron donors typically building up in the source zone during remediation. This can lead to groundwater acidification thereby ...


    By True Blue Technologies, Inc.

  • Petroleum hydrocarbon and chlorinated solvent case study

    Project Description The site is an active fueling terminal located in Van Nuys, California USA. The site has 1underground storage tanks of petroleum fuel as well as numerous above ground storage tanks for containment of various hydrocarbon and chlorinated solvent compounds. Site Geology Soils at the location consist primarily of interbedded layers of silt, ...

  • Industrial facility with chlorinated solvents

    Project Description The project site is an Industrial facility located in the foothills of northern Los Angeles, California. The facility utilized chlorinated solvents in operations. Site Geology Based on soil borings site geology consisted of unconsolidated gravely sands, sand, silty sand, sandy silt, and silt from ground surface to more than 200 feet below ...

  • Chlorinated solvents: methylene chloride and TCE

    Introduction This paper presents the results of a scaled and phased approach to source remediation of high concentrations of recalcitrant chlorinated solvent compounds via soil vapor extraction (SVE) and vapor treatment at a Site in Southern California. Phase I began with refrigerated condensation (C3) in order to achieve high mass removal rates to reduce lifecycle costs and time ...

  • Dr. Leo Lehmicke, a nationally recognized microbiologist in the area of bioremediation, has joined Hargis + Associates, Inc.

    Dr. Leo Lehmicke, a nationally recognized microbiologist in the area of bioremediation, has joined Hargis + Associates, Inc. His specific area of expertise is natural attenuation and enhanced bioremediation of chlorinated solvents. He helped develop and was an instructor for a course on Natural Attenuation of Chlorinated Solvents that was given to EPA and State regulators around the country. Dr. ...


    By Hargis + Associates Inc

  • The advantages and benefits of aerobic cometabolism

    Aerobic metabolism yields the energy-transferring molecule TPA at a much higher rate than anaerobic metabolism. The higher energy yield produces a greater viable population. The oxygenase enzymes involved in the cometabolism of chlorinated solvents are not induced by the presence of contaminants, so a high microbial population has a proportionately high yield of oxygenase enzymes. Aerobic ...


    By CL Solutions, LLC

  • Geochemical Effects of Perozone®: Important for Bio?

    Perozone® (peroxide-coated ozone) is used as a stand alone ISCO remediation technique at several sites where chlorinated solvents and their breakdown products are present. In both source and plume area low ppb levels appeared to be achievable. However, in some cases a combined ISCO-BIO approach may lead to lower cost. ISCO is then used for source removal and BIO is used for polishing before site ...


    By Verhoeve Milieu & Water

  • Groundwater contaminated with chlorinated solvents - Air force center for environmental excellence

    LOCATION:  Dover, DelawarePROJECT DATE:  October 1999 to presentCLIENT:  Air Force Center for Environmental Excellence (AFCEE) BACKGROUND: Groundwater contaminated with chlorinated solvents is a common problem to many US Air Force Bases. TSI in conjunction with Solutions Industrial & Environmental Services (Solutions-IES) of Raleigh, NC approached AFCEE with an innovative method utilizing ...


    By Terra Systems, Inc. (TSI)

  • 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 EOS Remediation, LLC

  • 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 ...


    By EOS Remediation, LLC

  • DNAPL in Clay Formation

    PROJECT BACKGROUND At a manufacturing site located in Cookeville, TN, on and offsite soil (tight clays) and groundwater contaminated with chlorinated solvents, were discovered as the result of a Phase I and a Phase II investigation. The client entered the State of Tennessee Voluntary Clean-up Oversight and Assistance Program (VCOAP), which resulted in an informal focused feasibility study to ...


    By Regenesis

  • Grid and Barrier Treatment Reduces Chlorinated Solvent Contamination

    CASE SUMMARY Manufacturing Facility, Dallas, TX Subsurface investigations at this manufacturing facility revealed chlorinated solvent contamination in the groundwater. The contaminant plume contained significant levels of dichloroethene (cis-DCE) and vinyl chloride (VC) from the natural attenuation of tetrachloroethene (PCE) and trichloroethene (TCE). Well MW-9 contained ...


    By Regenesis

  • Technical Bulletin: c-DCE stall out

    Trichloroethene (TCE) and Perchloroethene (PCE) chlorinated solvents have been responsible for the serious contamination of soils and groundwater. The occurrence of cis-DCE “stall”, the condition of where it appears biodegradation beyond cis-DCE to vinyl chloride does not occur resulting in cis-DCE accumulation, is often misinterpreted. How do you know if your site has c-DCE “Stall”?1) Evaluate ...

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you