chlorinated soil contamination Articles

  • Bien Hoa, Vietnam - Case Study

    In a project commissioned by the Global Environmental Facility and the United Nations Development Programme, EDL carried out a full-scale soil decontamination demonstration at a former US airbase in Vietnam. The trial successfully treated 150 tonnes of soil contaminated with Poly-Chlorinated Dibenzo-p-Dioxins and Dioxin-like ...

  • Soil & Groundwater treatment of Chlorinated Solvents

    Project: Treated 675 Cubic Yards of Chlorinated Contaminated Soil and Groundwater Client: Operating Dry Cleaners Location: Lexington, Kentucky Scope of work: In-Situ Bioremediation Project cost: $7,575 (Included earthmoving, labor, and all bioremediation materials) Source of ...


    By Catalina Biosolutions

  • 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 ...

  • Short- and Medium-Chain Chlorinated Paraffins in fish, water and soils from the Iqaluit, Nunavut (Canada), area

    Concentrations and sources of short- and medium-chain chlorinated paraffins (CP) were examined in the city of Iqaluit, Nunavut. Tissues from the Arctic char and the ninespine stickleback were analysed, as were terrestrial sediments near landfills. Water and sediments from local streams were tested along with water draining from the sewage lagoon and sediments near the lagoon's outlet. Significant ...


    By Inderscience Publishers

  • Grade `A` remediation - selective phase transfer technology cleans up college in Moncton, New Brunswick

    Remedialing sensitive areas or population dense areas can be tricky at the best of times. So it's important to utilize a remediation technology with a proven record of reducing environmental and health and safely risks in order to avoid associated legal liability for project stakeholders, among other reasons. Ivey International Inc. is a Canadian company with offices in Campbell River, B.C., ...


    By Ivey International Inc.

  • 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 ...

  • Removing CVOCs under a building equals increased property value tucker, Georgia

    TRS Group, Inc. (TRS) worked as a subcontractor to Brown and Caldwell to remediate five chlorinated volatile organic contaminant (CVOC) source areas in the soil under a manufacturing building. To accomplish this, Electrical Resistance Heating (ERH) remediation, it was necessary to place over 70 electrodes and vapor recovery wells through the main floor of the facility and to use angled electrodes ...


    By TRS Group, Inc.

  • Springfield, MO - TCE remediation in bedrock - Case Study

    Remediation of TCE at Former Industrial Manufacturing Facility Confidential Client — Springfield, Missouri Project Summary TRS, as a subcontractor to Stantec, designed, installed and operated an electrical resistance heating (ERH) system at a former industrial manufacturing facility in Springfield, Missouri. TCE in soil was ...


    By TRS Group, Inc.

  • A Citizen`s Guide to Chemical Dehalogenation

    What is chemical dehalogenation? Chemical dehalogenation is a chemical process to remove halogens (usually chlorine) from a chemical contaminant, rendering it less hazardous. Halogens are a class of chemical elements that include chlorine, bromine, iodine, and fluorine. Polychlorinated biphenyls are halogenated compounds that once were used in high voltage electrical transformers because they ...

  • 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 ...


    By TRS Group, Inc.

  • Differential Stimulation of Haloreduction by Carbon Addition to Subsurface Soils (PDF)

    Highly substituted ethenes such as PCE and TCE are susceptible to microbial reductive dehalogenation and halorespiration under anaerobic conditions. The objective of this study was to evaluate whether soil from a bulk aerobic aquifer, historically contaminated with chlorinated ethenes (CEs), could be made anaerobic by carbon source addition to enhance haloreduction, and to evaluate how the ...


    By Regenesis

  • AutoTracker Reduces Remediation Cost per Gallon by 59% - Case Study

    AutoTracker™ (U.S. Patent Number 6,520,259) Floating Extraction Inlets were added to a DPE system at a remediation site in mid-Michigan following several years of operational problems caused by fluctuating water table levels. Installation was straightforward and system performance improved immediately, reducing on-site maintenance, labor and O&M costs and greatly improving groundwater ...

  • Dehalogenation

    Introduction: Contaminated soil is screened, processed with a crusher and pug mill, and mixed with reagents. The mixture is heated in a reactor. The dehalogenation process is achieved by either the replacement of the halogen molecules or the decomposition and partial volatilization of the contaminants. Base-catalyzed Decomposition (BCD) Base-catalyzed ...

  • Combined Remedies Treat Large Industrial Site - Case Study

    ABSTRACT BOS 100 was successfully implemented as part of a combined remedies strategy to treat elevated levels of Trichloroethylene in a shallow fine grained aquifer at a former large industrial facility. CHALLENGES A large industrial facility used vapor degreasing in the 1970s and 1980s that resulted in chlorinated volatile organic compound (CVOC) ...

  • 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

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