mets soil remediation Articles

  • Remediation of Metals-Contaminated Soils and Groundwater

    A range of technologies is available for remediation of metals-contaminated soil and groundwater at Superfund sites. General approaches to remediation of metal contamination include isolation, immobilization, toxicity reduction, physical separation and extraction. These general approaches can be used for many types of contaminants but the specific technology selected for treatment of a ...


    By Richflood International Ltd

  • Case study - Petroleum remediation systems

    Overview A major oil company was looking for a way to stay ahead of EPA regulations for soil vapor extraction of BTEX and the subsequent treatment of these gases. They were looking for one company that could offer competitive pricing, local support service, and the application expertise to provide 50 remediation units throughout the ...

  • Soil Vapor Extraction (In Situ)

    Introduction Soil vapor extraction (SVE) is an in situ unsaturated (vadose) zone soil remediation technology in which a vacuum is applied to the soil to induce the controlled flow of air and remove volatile and some semivolatile contaminants from the soil. The gas leaving the soil may be treated to recover or destroy the contaminants, depending on local and state air discharge regulations. ...

  • Bioremediating Explosives Contaminated Soil

    From the beginning of World War II until the 1970s, the site that is now the Naval Surface Warfare Center in Crane, Indiana (NSWC-Crane) was the home of a major bomb manufacturing operation. Explosive compounds such as TNT, Royal Demolition Explosives (RDX) and Her Majesty’s Explosive (HMX) were handled loose and drifted through air vents. Often, the material settled on the roofs of buildings, ...


    By BioCycle Magazine

  • TCE Remediation at a Brownfield Site – St. Louis, MO

    Site Summary In June of 1999, the property owner of this former metal container manufacturing facility decided to redevelop theproperty into commercial office space. However, environmental assessment revealed impacted soil andgroundwater with TCE and 1,1,1-TCA, as well as their breakdown products (making it clear that some degree ofbioremediation was already occurring). Redevelopment ...


    By REGENESIS

  • Spoil, rubble and a soil-tar mix

    National Grid and Wales and West Utilities recently completed their first joint remediation project at the Aberaman Gasworks following the sale of the Wales and south west of England gas network in 2005. Here Scott Lewis from National Grid and Ashley Griffiths from Wales and West Utilities explain the challenges and processes. The project was undertaken using a stabilisation and solidification ...


    By Newzeye Ltd

  • Brownfield development - Biotechnology cleans contaminated soil

    The Tooele Army Depot (TEAD) is in Tooele, Tooele County, Utah, 35 miles southwest of Salt Lake City. It consists of two separate areas, the North Area and the South Area. The North Area covers about 25,000 acres in Tooele Valley south and west of Tooele. Since 1943, TEAD has had a fourfold mission: store ammunition, demilitarize ammunition, rebuild military equipment and store military ...


  • Remediation of TCE NAPL in active Alleyway Arlington, Texas - Case Study

    Goals to achieve separate analyte-specific clean-up goals in clay soils and groundwater respectively Project Summary TRS Group, Inc. (TRS) completed a Guaranteed Fixed Price Remediation (GFPR) of tetrachioroethene (PCE), trichioroethene (TCE), cis-l,2-dichloroethene (cis 1,2-DCE), 1,1,1-trichloroethane (1,1,1-TCA), 1,1-dichloroethene (1,1-DCE), ...


    By TRS Group, Inc.

  • Field-scale reduction of TNT and RDX concentrations in soil

    The Tooele Army Depot (TEAD) is in Tooele, Tooele County, Utah, 35 miles southwest of Salt Lake City. It consists of two separate areas, the North Area and the South Area. The North Area covers about 25,000 acres in Tooele Valley south and west of Tooele.Since 1943, TEAD has had a fourfold mission: store ammunition, demilitarize ammunition, rebuild military equipment, and store military ...


  • Newark, CA - Guaranteed PCE and TCE remediation - Case Study

    Guaranteed PCE and TCE Remediation at Hazardous Waste Facility Project Summary TRS Group, Inc. (TRS) completed a Guaranteed Fixed Price Remediation (GFPR) of tetrachloroethene (PCE), trichioroethene (TCE), cis-l,2-dichloroethene (cis 1,2-DCE), 1,1,1-trichloroethane (1,1,1-TCA), 1,1-dichloroethene (1,1-DCE), 1,1-dichloroethane (1,1-DCA), methylene chloride, ...


    By TRS Group, Inc.

  • Efficient pit remediation - CETCO Oilfield Services Process for Treating Pit Water

    A consulting firm was involved in remediating a large earthen pit, which previously contained oil and produced waters near Venice, Louisiana. The site contained approximately 17,000 barrels of produced water and accumulated rainwater. While the entire project involved many aspects, excavating the contaminated soil could not commence until the 17,000 barrels of oily surface water was removed. ...


    By CETCO Energy Services

  • Remediation of TCE DNAPL under an operating industrial manufacturing facility - air force plant 4 Fort Worth, TX

    As a subcontractor to URS Corp., TRS designed, installed and operated a full-scale Electrical Resistance Heating(ERH) remediation system covering an area of about 1/2 acre inside Building 181 at Air Force Plant 4 in Fort Worth, TX. This is the most complex application of ERH ever completed inside and underneath an operating, heavy industrial manufacturing facility. The cleanup objectives for the ...


    By TRS Group, Inc.

  • Brownfield remediation - Urban revitalization requires local groups to learn to identify brownfield sites and understand the liability issues and environmental concerns.

    Brownfields are defined by the United States Environmental Protection Agency as 'abandoned, idled, or under-used industrial and commercial facilities where expansion or redevelopment is complicated by real or perceived environmental contamination.' Vacant industrial sites, gas stations, commercial buildings, and offices all fall under the heading of brownfields. Brownfields can be found in almost ...


  • PCP Confidential Client, Northwest USA

    Northwest, USA Summary Adventus’ DARAMEND® technology was selected to remediate approximately 6,000 tons of soil impacted with pentachlorophenol (PCP) at a former chemical manufacturing facility located in the Northwest. Excavated soil was placed in a lined bioremediation cell in a 2 ft layer for treatment. The Challenge To reach a remedial goal of less ...


  • RegenOx™ treats petroleum hydrocarbons surrounding sensitive underground infrastructure at a defence facility

    Former fueling operations at Scott Air Force Base resulted in soil contamination containing high levels of benzene, ethylbenzene, methyl tertiary-butyl ether (MTBE), and naphthalene. Underground storage tank removal and source area excavation were planned to treat the unsaturated soil. However, subsurface investigations revealed piping, fiber-optic communication lines and other utilities present ...


    By REGENESIS

  • Treatment of a mixed CVOC and cr contaminated site using in situ chemical reduction (ISCR) and Stimulated Biotic Mineralization

    The implementation of efficient and cost-effective remedial solutions in the clean-up of impacted properties is paramount in returning brownfields and other impacted properties to viable use in the face of the recent real estate market declines. Historical site use of the Cleveland Flats project area included: a manufactured gas plant (circa. 1850), trucking terminal, & plating operations. As ...


  • A Systems` Approach to In Situ Bioremediation: Full-Scale Application (PDF)

    An 18-month, in-situ biological program, specifically aimed at accelerating the current attenuation process such that the owner can sell the property began May 5, 2000. The remedial approach has focused on population management, nutrient augmentation, terminal electron acceptor enhancement, and an efficient subsurface delivery of the enhancement liquids. Specifically, a novel delivery system, ...


    By REGENESIS

  • Systems approach - Petroleum site

    An 18-month, in-situ biological program, specifically aimed at accelerating the current attenuation process such that the owner can sell the property began May 5, 2000. The remedial approach focused on bacterial population management, nutrient augmentation, terminal electron acceptor enhancement, and an efficient subsurface delivery of the enhancement liquids. Specifically, a novel delivery ...

  • Iowa Army Ammunition Plant

    US Army Corps of Engineers (USACE)Burlington, Iowa, USA Project Full-Scale Bioremediation of Organic Explosive Impacted Soil Summary RDX, an organic explosive (Hexahydro-1,3,5-trinitro-1,3,5-triazine), was the primary contaminant of concern at IAAP, due to its high initial concentration relative to its remedial goal of 53 mg/kg. Initial RDX concentrations ranged from 819 mg/kg to ...


  • CETCO vapor mitigation system chosen as voc protection barrier for school campus case study

    Project: Mott Haven School Location: Bronx, NY Products: Liquid Boot® Gas Vapor Mitigation System Background: The Mott Haven School Campus was to be built on a former manufacturing site with residual contaminants in the soil. Challenge: The site for the school development underwent a series of ...


    By CETCO

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