in-situ remediation Articles

  • In situ remediation: enhancement technologies for remedial success

    Vol 24 No. 1  Winter 2012 HAZMAT MANAGEMENT Magazine  REMEDIATION: IN SITU  pp 42-44 Fracture - emplacement of 140 tons of Zero Valent Micro-iron/cellulose substrate  into TCE- impacted sandstone bedrock at a former air force missile base site near Windsor, Colorado. Three dimensional mapping of ZVI fractures using tiltmeter geophysics.  Treatment results after 21 months ...


  • The In Situ Bioremediation/Groundwater Remediation Process

    In-situ groundwater bioremediation is a technology that encourages growth and reproduction of indigenous microorganisms to enhance biodegradation of organic constituents in the saturated zone. In-situ groundwater bioremediation can effectively degrade organic constituents which are dissolved in groundwater and adsorbed onto the aquifer matrix. The Adventus In Situ Bioremediation/Groundwater ...


  • In Situ Remediation Technology Status Report: Surfactants

    ABSTRACT The purpose of this document is to describe recent field demonstrations, commercial applications, and research on surfactant use for either treatment of soil and ground water in situ or to increase the solubility and mobility of contaminants to improve t heir removal by pump-and-treat remediation. It is hoped that this information will allow more regular consideration of new, less ...


  • In situ Chemical Oxidation: An Innovative Groundwater Remediation Technology

    A promising new technology, in situ Chemical Oxidation (ISCO), has the potential to supplant the more widely used pump-and-treat groundwater remediation technology by destroying groundwater contamination in situ (in place). ISCO is the process of oxidizing contaminants in the groundwater and soil by injecting water containing high concentrations of an oxidant to the site of the contamination. ...


    By AECOM

  • 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

  • In Situ Remediation Technology Status Report: Electrokinetics

    The purpose of this document is to describe recent field demonstrations, commercial applications, and research on electrokinetics for either treatment of soil and ground water in situ or to increase the solubility and mobility of contaminants to improve their removal by pump-and-treat remediation. It is hoped that this information will allow more regular consideration of new, less costly, and ...

  • Apparatus for In-Situ Remediation Using Aclosed Delivery System

    ABSTRACT: In the ever-emerging field of in-situ remediation many strides are being taken to improve the efficacy of degradation. Countless hours and unparalleled research is constantly being performed in order to improve or replace current technologies. These technologies include in-situ chemical oxidation, anaerobic processes, bioaugmentation, zero valent iron, stimulation, etc. Due to the ...

  • In Situ electromagnetic heating for hydrocarbon recovery and environmental remediation

    Introduction Thermal recovery methods, as applied in heavy oil and oil sand deposits, and in environmental remediation, have the common objective of accelerating the hydrocarbon recovery process. Raising the temperature of the host formation reduces the oil and bitumen viscosity, and, in environmental remediation, increases vapour pressure. These effects assist in sweeping the substances ...


    By McMillan-McGee Corp.

  • Application of In Situ Remediation Technologies by Subsurface Injection (PDF)

    There are many emerging remedial technologies which require the introduction of various materials to the saturated zone of a contaminated site in an effort to remediate groundwater in-situ. These remedial materials include both chemical compounds as well as proprietary products such as hydrogen release and oxygen release compounds.A common requirement to implement an effective application of many ...


    By Regenesis

  • In-situ Thermal Remediation Under an Apartment Building

    This paper presents the implementation and results of ET-DSP, an in-situ electrical soil heating technology, in combination with high vacuum dual phase extraction, to achieve the removal of vapour pressure sensitive BTEX compounds from under an occupied residential apartment building. Operating within several engineering, environmental, and safety constraints, a design was developed in order to ...


    By McMillan-McGee Corp.

  • In Situ Remediation Technology Status Report: Co-Solvents

    ABSTRACT The purpose of this document is to describe recent field demonstrations, commercial applications, and research on technologies that either treat soil and ground water in place or increase the solubility and mobility of contaminants to improve their removal by pump-and-treat remediation. It is hoped that this information will allow more regular consideration of new, less costly, and more ...

  • In Situ Remediation Technology Status Report: Thermal Enhancements

    The purpose of this document is to describe recent field demonstrations, commercial applications, and research on thermal enhancements for either treatment of soil and ground water in situ or to increase the solubility and mobility of contaminants to imp rove their removal by pump-and-treat remediation. It is hoped that this information will allow more regular consideration of new, less costly, ...

  • In Situ Remediation of PCE at a Site With Clayey Lithology and a Significant Smear Zone

    Groundwater at the former Serry’s Dry Cleaning site in Corvallis, Oregon, was impacted by chlorinated volatile organic compounds (CVOCs). The primary CVOCs impacting the site include tetrachloroethene, trichloroethene, dichloroethene, and vinyl chloride, which were detected at concentrations up to 22,000, 1,700, 3,100, and 7 μg/L, respectively, prior to treatment. Large ...


  • Cuyama Case Study (Ex Situ Gas Thermal Remediation(GTR™))

    Ex Situ Thermal Desorption was used to successfully treat TPH-d and TPH-g from a former AST spill site in the agricultural zone in Central California. Affected soils were excavated and then placed “in a pile”, and Gas Thermal Remediation (GTR©) horizontal wells were placed into the pile during its three day construction. The piled soils represented mixed sands and high TOC soils, ...


    By GEO Inc

  • In-Situ Groundwater Remediation of Heavy Metals at an Active Manufacturing Facility

    Tetra Tech & Adventus deploy In-Situ Groundwater Remediation of Heavy Metals at an Active Manufacturing Facility. Site History: 1966 to the present: Manufacturing of various automotive components 1966 to1984: Operation of chromium plating 1983: Release of metal plating rinse water 1983 to 1989: Excavation of soil and operation of 4 groundwater recovery wells 2006: ...


  • In situ remediation of BTEX, MTBE and TPH using EAS as a terminal electron acceptor

    EAS, A Paradigm Shift in the Remediation of Petroleum Hydrocarbons The conventional wisdom for remediation of aquifers contaminated with petroleum hydrocarbons (PHCs) is to add oxygen. A recent EPA / British Petroleum study, however, concluded that most hydrocarbon plumes are anaerobic and depleted of sulfate and, therefore, adding oxygen is disadvantageous. Other studies have drawn ...


    By True Blue Technologies, Inc.

  • Loveland Case Study (In SItu Gas Thermal Remediation (GTR™))

    The Loveland Sinclair gasoline station was selected for In-Situ Thermal Remediation (ISTR) using Gas Thermal Remediation (GTR) technologies. The GTR remediation system was designed to target a treatment area of approximately 14,000 square feet and includes a treatment volume of approximately 3,100 cubic yards. Vadose and saturated zone impacts, including a thin layer of light non-aqueous phase ...


    By GEO Inc

  • In Situ Remediation Technology Status Report: Research and Application of Permeable Barriers

    This document is an attempt to compile worldwide research efforts and applications in the field of permeable reactive barriers (PRB). The listing will evolve as input is received. Apologies are made for any inadvertent omissions or errors. Typically, many people are responsible for a project; however, for simplicity, a single contact is provided for each project. Research projects are organized ...

  • The Thermodynamic Bubble problem and its relevance for In-Situ thermal remediation

    ABSTRACT This paper presents the thermodynamic bubble problem and its relevance for successful design of an in-situ thermal remedy of DNAPL in the water saturated zone. This investigation is relevant to the mass transfer of chemicals that have been volatilized as a result of an in-situ thermal remediation process. The volatilized chemicals exist as numerous entrained bubbles in the water ...


    By McMillan-McGee Corp.

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