bioremediation site Articles

  • SEB Surfactant Enhanced Bioremediation Process Improves F3 & F4 Bioremediation to CCME Guidelines - Case Study

    SEB Surfactant Enhanced Bioremediation process successfully cleans >4,000 Tons of F3 and F4 hydrocarbon contaminated soils at a remote site in Alberta. The SEB process was employed when the subject soils would not respond well to a conventional ex-situ bioremediation treatment. So after a 20 month period of unsuccessful bioremediation; the client and environmental contractor contacted Ivey ...


    By Ivey International Inc.

  • A Pilot Study Using HRCTM to Enhance Bioremediation of CAHs.

    ABSTRACT: The effect of Hydrogen Release Compound (HRCTM) in enhancing the anaerobic bioremediation of chlorinated aliphatic hydrocarbons (CAHs) was observed in a single well pilot study. HRC is a proprietary, environmentally safe, food quality, polylactate ester formulated for the slow release of lactic acid upon hydration. Microbes metabolize the lactic acid releases by HRC and produce ...


    By Regenesis

  • Gulo Env reports site closure at Site remediated by Delta's BioLogix

    Delta had been contracted during the 2014 remediation at the well site to apply their bioremediation process to excavated and stockpiled soil contaminated with Fraction 2 petroleum hydrocarbons (F2 PHC). Soil sample results from a 2014 Phase II ESA showed F2 PHC concentrations ranging from 170 mg/kg to 1210 mg/kg, with an average of 586 mg/kg in the four samples from the disposal area. Delta was ...


    By DELTA REMEDIATION INC

  • Feasibility study of in-situ bioremediation for nitrobenzene-contaminated groundwater

    Although many studies have simulated in-situ bioremediation of contaminated groundwater, most of them have not considered hydrochemical conditions and indigenous microorganisms, thus potentially rendering results inapplicable to actual in-situ groundwater bioremediation projects. This study focused on a nitrobenzene-contaminated groundwater site located in Jilin City, China. The actual ...


    By IWA Publishing

  • Bioremediation of Kerosene and Diesel Fuel in soil case study

    The United States has a large hazardous waste problem that is threatening both human health and the environment. Current analysis of the nearly 1,200 National Priority List (NPL) sites reveals that about 80% of the sites are contaminated with organic compounds. Clean-up of hazardous waste sites, as a national priority has accelerated the development of bioremediation technologies. Environmental ...

  • Aerobic and Anaerobic Bioremediation of 1,2-Dichloroethene and Vinyl Chloride

    ABSTRACT: This paper presents a comparative study of aerobic and anaerobic bioremediation of 1,2-dichloroethene (DCE) and vinyl chloride (VC), and includes laboratory bench scale testing of anaerobic biodegradation and a side by side field pilot test comparing the effectiveness of aerobic and anaerobic biodegradation processes. Manufacturing activities at an industrial facility in Ohio resulted ...


    By Regenesis

  • Field Application of a Lactic Acid Ester for PCE Bioremediation.

    ABSTRACT: As part of a strategy to enhance reductive dechlorination with a timed release of hydrogen, an application of glycerol polylactate (GPL) was made to a dry cleaner site contaminated with perchloroethylene (PCE). GPL is one of several proprietary lactic acid esters sold commercially as Hydrogen Release Compound (HRCTM). When HRC contacts the saturated contaminated zone, the lactic acid ...


    By Regenesis

  • Bioremediation/natural attenuation continues after ISCO treatment

    Scientists and engineers from the private sector and EPA are evaluating the potential for in situ bioremediation and/or natural attenuation to successfully treat residual soil and ground-water contamination after source-area in situ chemical oxidation (ISCO) treatment. The studies were prompted by concerns that the two treatment technologies may be incompatible due to detrimental impacts on ...

  • Enhanced Bioremediation of Tetrachloroethene in Central Indiana Glacial Till

    ABSTRACT: The goal of this project is remediation of soil and groundwater impacted by tetrachloroethene (PCE) that infiltrated the vadose and uppermost saturated zone below an active dry cleaning facility in central Indiana. PCE was released and transported to depths less than five meters via the primary porosity of thin sand and silt stringers and via secondary porosity of fractures in lodgment ...

  • Bioremediation of Nitrochlorobenzene, Nitroaniline, Chloroaniline, and Other Organics in Groundwater.

    ABSTRACT: The uppermost aquifer beneath a chemical plant contains residual concentrations of o-nitrochlorobenzene from a tank car spill, as well as other plant-related organic compounds of concern (COC), including 2-nitroaniline and o-chloroaniline. The aquifer consists of low permeability clays and silts, and produces only a few gallons of groundwater per day from a shallow ...


    By Regenesis

  • The Use of Hydrogen Release Compound (HRC) for CAH Bioremediation.

    Hydrogen Release Compound (HRC™) is a simple, passive, low-cost and long-term option for the anaerobic bioremediation of chlorinated aliphatic hydrocarbons (CAHs) via a reductive dehalogenation pathway. Applications to other classes of chlorinated compounds that are anaerobically degradable by this mechanism are under investigation. HRC should be viewed as a tool for the enhancement of natural ...


    By Regenesis

  • Sea Power 101: Award Winning Bioremediation Solution

    Case Study: Gasworks, Chertsey At the 2008 Brownfield Briefing Remediation Innovation Awards, Tamdown won ‘Best Use of a Single Remediation Technique’ for their treatment of a former gasworks in Surrey using Sea Power 101. Applied to vented biopiles housed in large poly tunnels, Tamdown were able to treat and re-use 3,250 tonnes of contaminated soil. ...


    By Sea-Chem Limited

  • Drycleaner site: Houston, Texas

    Site Summary: Historical dry cleaning solvent spills from an active dry cleaners contaminated soil and ground water under a shopping center. The migration of contaminants in shallow ground water spread contamination from under the building into a residential subdivision. The resulting plume of contaminated ground water was more than 1,000 feet long. Geology and ...


    By CL Solutions, LLC

  • Bioremediation applied to high pH contaminated soil washing slurry

    BioFuture Ltd. in conjunction with General Smontaggi SpA have used applied environmental engineering and bioaugmentation to remediate hydrocarbon contaminated soil washing slurry. The soil washing slurry had been treated using lime to dry and stabilise it for transport to special landfill for disposal. The starting pH was 12.55 and it was successfully bioremediated so that it could be used as a ...


    By Biofuture Ltd

  • Remediation of Free Product with Horizontal Bioremediation Systems - Case Study

    Project Location: Northern New York Client: Private Corporation – Petroleum Distribution Center Contamination: Gasoline Site Size: 10+ Acres Project ...


    By Integrity Engineering, Inc.

  • 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

  • Acidity production and buffer requirements for in situ bioremediation of chlorinated solvents

    Acidity production and buffer model Developed batch abiotic model in PHREEQC-2 using overall stoichiometry for reductive dechlorination Reaction is divided in steps, buffer is added as required to maintain minimum design pH Model considers: Expected extent of dechlorination Site water chemistry H2 ...


    By True Blue Technologies, Inc.

  • Enhanced Bioremediation of High Contaminant Concentrations in Source Residual Area (PDF)

    Although enhanced bioremediation has proven to be effective at many sites, typically it has been applied to relatively low contaminant concentrations and in relatively permeable media. The project site described herein is an application that potentially extends the practical limits of in situ bioremediation applications. An active eyewear manufacturing facility located in Western NY was found to ...


    By Regenesis

  • Protocol for Enhanced In Situ Bioremediation Using Emulsified Edible Oil

    An in-depth discussion of the EOS® patented technology and its usefulness for site remediation is presented. Details of how the technology works, design considerations as well as strengths and limitations of the technology are presented. 1.1 INTRODUCTION Management of groundwater contaminated with chlorinated solvents, perchlorate, and explosives is one of the Department of Defense’s (DoD’s) ...


    By EOS Remediation, LLC

  • HRC Treats TNT at a DoD Site

    Site Summary West Virginia Ordnance Works (WVOW) was a trinitrotoluene (TNT) manufacturing facility from 1942-1945 and used 12 TNT production lines. The production of TNT resulted in soil and groundwater contamination adjacent to the manufacturing building. The majority of the contamination was found within the shallow aquifer which consists of tight clays. Alternative options included insitu ...


    By Regenesis

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