erh technology Articles

  • Five Additional Technologies Evaluated After ERH Application at Camp Lejeune

    Groundwater at Site 89 of Marine Corps Base Camp Lejeune in North Carolina is contaminated with two dense non-aqueous phase liquid (DNAPL) plumes and a large dissolved plume. The Navy took a phased approach over the past six years to address each of these components. In 2003, electrical resistive heating (ERH) was evaluated in a pilot study to treat one DNAPL plume. In 2006, field-scale ...

  • Cape Canaveral, Florida - ERH Remediation of TCE DNAPL - Case Study

    Early technology demonstration of ERH used to remediate TCE DNAPL The Interagency DNAPL Consortium (IDC) representing the U.S. EPA, NASA, DoE, DoD, and U.S. Air Force conceived a demonstration to test three technologies for DNAPL remediation. The Technical Advisory Group (TAG), consisting of nationally known experts in the field of DNAPL remediation, conducted the technology ...


    By TRS Group, Inc.

  • First State-funded cleanup using electrical resistivity heating technology

    The Remediation and Redevelopment Division (RRD) completed remediation at a former dry cleaning facility in the city of Owosso using electrical resistivity heating (ERH) technology. Electrical resistivity heating is an in­situ electrical heating technology that uses electricity and applies it into the ground through electrodes. The resistance of the electricity traveling through the ground ...


    By TRS Group, Inc.

  • Georgia city uses geospatial technology to identify assets and improve safety

    One of Georgia’s newest cities decided to go digital with CH2M - digitizing assets to manage operations and improve public safety for the city. If you’re a brand new city, you’re probably thinking what can we do to quickly make our community a better place to live? Peachtree Corners, one of Georgia’s newest cities, decided to go digital with CH2M - digitizing ...


    By CH2M Hill Companies, Ltd.

  • Maywood, Ca - Pemaco superfund site

    Thermal Remediation Services, Inc. (TRS) subcontracted to TN & Associates to provide an Electrical Resistance Heating (ERH) remediation of trichloroethene (TCE) in soil and groundwater at the Pemaco Superfund Site located in Maywood, California. This is the first EPA Record of Decision (ROD) in California that includes ERH as the selected technology for the treatment of a deep TCE source ...


    By TRS Group, Inc.

  • Remediation of TCE in soil and groundwater to 95 feet below grade pemaco superfund site, Maywood, CA

    TRS Group, Inc. (TRS) subcontracted to TN & Associates to provide an Electrical Resistance Heating (ERH) remediation of trichloroethene (TCE) in soil and groundwater at the Pemaco Superfund Site located in Maywood, California. This is the first EPA Record of Decision (ROD) in California that includes ERH as the selected technology for the treatment of a deep TCE source area. The remedial goal ...


    By TRS Group, Inc.

  • In Situ Thermal Remediation of DNAPL and LNAPL Using Resistance Heating

    Electrical resistance heating (ERH) is an in situ thermal treatment for soil and groundwater remediation that can reduce the time to clean up volatile organic compounds (VOCs) from years to months. The technology is now mature enough to provide site owners with both performance and financial certainty in their site-closure process. The ability of the technology to remediate soil and groundwater ...


    By TRS Group, Inc.

  • Electrical Resistance Heating: a Hot New Approach to Soil and Groundwater Remediation

    Electrical Resistance Heating (ERH) is an aggressive remediation technology that can quickly reduce the mass of volatile organic compounds (VOCs) in soil and groundwater by over 99%. The process is often used to clean sites where other technologies have had limited success. Larger ERH sites are cleaned within 6 to 12 months and smaller sites can be cleaned in half that time or ...


    By TRS Group, Inc.

  • TCE remediation in low permeability soil olney, Illinois

    Thermal Remediation Services, Inc. (TRS) successfully completed the remediation of subsurface trichloroethene contamination in a mixed-phase environment on a time-based, fast-track, guaranteed basis. By utilizing TRS’ signature Electrical Resistive Heating (ERH) technology complimented by vapor recovery, TRS was able to overcome significant challenges that included: A low permeability ...


    By TRS Group, Inc.

  • Three-Phase Heating? Six-Phase Heating? Which is Better?

    First off, both “three-phase heating” and “six-phase heating” are varieties of Electrical Resistance Heating (ERH) – there really isn’t that much difference between them. The skill of the electrode designers and the experience of the operators are far more important to the success of your project than is the number of electrical phases. Thermal Remediation Services uses the best phasing technique ...


    By TRS Group, Inc.

  • Heat-enhanced bioremediation and destruction - Case Study

    Introduction In situ thermal treatment through Electrical Resistance Heating (ERH) is a proven robust technology for the treatment of volatile organic compound (VOC) source zones. ERH effectively treats the subsurface by volatilizing dense non-aqueous phase liquid (DNAPL) and VOCs, recovering the vapor, and treating the vapor by conventional technologies such as granular activated carbon ...


    By TRS Group, Inc.

  • New Advancements for In Situ Treatment Using Electrical Resistance Heating

    Electrical resistance heating (ERH) is proving to be an effective technology to rapidly heat the subsurface and, in doing so, removing volatile organic compounds. Practitioners of this technology have observed that other processes (biodegradation, abiotic degradation, hydrolysis, and possibly others) occur to break down the chemicals of concern, and remediation is not solely accomplished through ...


    By TRS Group, Inc.

  • World’s deepest DNAPL remediation confidential site, Los Angeles, California

    TRS Group, Inc (TRS) provided Electrical Resistance Heating (ERH) for the remediation of DNAPL at 130-feet belowground surface (ft bgs) at a confidential site located in Los Angeles, CA. This is the world’s deepest remediation of DNAPL using an in situ thermal technology. Total volatile organic compounds (VOCs) of concern include etrachloroethene (PCE), 1,1,1-trichloroethane (TCA), ...


    By TRS Group, Inc.

  • Case Study - Source Area Remediation of PCE in Soil - Fair Lawn, New Jersey

    TRS Group, Inc. (TRS) was retained by Anderson Mulholland and Associates, Inc. (AMAI) to perform an Electrical Resistance Heating (ERH) remediation of DNAPL in soil at the former Topps Dry Cleaners property in Fair Lawn, NJ. The remedial goal of this project was a reduction of tetrachloroethene (PCE) in soil to less than 1 milligram per kilogram (mg/kg) in every soil sample. Final confirmatory ...


    By TRS Group, Inc.

  • Tacoma, WA - ESTCP Fort Lewis heat enhanced bio - Case Study

    Heat Enhanced Bioremediation and Destruction Introduction In situ thermal treatment through Electrical Resistance Heating (ERH) is a proven robust technology for the treatment of volatile organic compound (VOC) source zones. ERH effectively treats the subsurface by volatilizing dense non-aqueous phase liquid (DNAPL) and VOCs, recovering the vapor, and ...


    By TRS Group, Inc.

  • Owosso MI - Guaranteed PCE remediation under active restaurant - Case Study

    First Michigan state-funded cleanup using electrical resistivity heating technology and a guaranteed project. Background The site is a former dry cleaner that had operated for more than 20 years. The dry cleaning operations left residual perchloroethylene (PCE) contamination in the soil and groundwater and a building was constructed on the site without ...


    By TRS Group, Inc.

  • In situ Remediation of 1,4-Dioxane using Electrical Resistance Heating

    An increasing number of states are establishing enforceable 1,4-dioxane cleanup goals due to recent improvements in analytical detection methods and existing carcinogenic risk information for 1,4-dioxane. Historically, 1,4-dioxane was used as a stabilizer for chlorinated solvents, primarily 1,1,1-trichloroethane. In addition, 1,4-dioxane has been used in a broad range of products including but ...


    By TRS Group, Inc.

  • 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. ...


    By TRS Group, Inc.

  • ISCR-Enhanced Bioremediation Accelerates Groundwater Cleanup at Active Manufacturing Facility

    In the winter of 2008, full-scale in situ chemical reduction (ISCR) was implemented as a removal action at the Siltronic Corporation site in Portland, OR, to treat a source area contaminated by releases of TCE. The source area was considered to be the portion of the site with concentrations of TCE in groundwater greater than 11,000 µg/L, suggesting the ...


  • Case study - Pemaco superfund site remediation

    OVERVIEW Pemaco was formerly a chemical facility located in a light industrial and residential area of Maywood, CA, adjacent to the Los Angeles River. No one knows how long hazardous substances had been leaking into the ground but the operations date back to the 1940's.  Up until closure of the facility in 1991, chlorinated solvents, aromatic solvents, and flammable liquids had ...

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