bioremediation test Articles

  • Enhanced Bioremediation

    Introduction Enhanced bioremediation is a process in which indigenous or inoculated micro-organisms (e.g., fungi, bacteria, and other microbes) degrade (metabolize) organic contaminants found in soil and/or ground water, converting them to innocuous end products. Nutrients, oxygen, or other amendments may be used to enhance bioremediation and contaminant desorption from subsurface materials. ...

  • 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

  • Bioremediation of pollutant-contaminated water

    Raw water resources in Kafr El-Sheikh Governorate are affected by many contaminants particularly during the winter season and low demand period of the Nile River, in which water level decreases and organic matter increases resulting in decreased dissolved oxygen, and increased ammonia, nitrite and bacterial load in the water. In this study, physicochemical and microbiological characteristics ...


    By IWA Publishing

  • Peroxygen Mediated Bioremediation of MTBE.

    ABSTRACT: Evidence is mounting, from laboratory and field studies, that oxygen plays a role in the bioremediation of methyl tertiary butyl ether (MTBE). Our experience with a number of commercial applications of peroxygen, in the form of Oxygen Release Compound (ORCâ), correlates the provision of enhanced aerobic conditions with enhanced MTBE biodegradation. Subsequent laboratory and field ...


    By Regenesis

  • A Citizen`s Guide to Bioremediation

    What is bioremediation? Bioremediation is a treatment process that uses naturally occurring microorganisms (yeast, fungi, or bacteria) to break down, or degrade, hazardous substances into less toxic or nontoxic substances. Microorganisms, just like humans, eat and digest organic substances for nutrients and energy. In chemical terms, 'organic' compounds are those that contain carbon and hydrogen ...

  • Types of bioremediation and their modes of action

    An Urgent Call for Change in U.S. Oil Spill Response With Bioremediation Agent Type EA* bearing out as a workable first response alternative to the use of chemical dispersants, contrasting evidence has become even clearer that dispersant use has been a huge failure. Dispersants have proven to be an inadequate response method with more and more studies showing an ...

  • CL-Out In Situ Bioremediation of Perchlorate

    CL-Out is a consortium of facultative aerobic organisms that are well know for their ability to utilize nitrates.  CL-Out is generally used for the aerobic cometabolism of PCE and other chlorinated solvents.  As the half-reaction for perchlorate is close to that of nitrate, CL-Out cometabolism of perchlorate was successfully tested in the laboratory.  In addition to laboratory ...


    By CL Solutions, LLC

  • Semifield testing of a bioremediation tool for atrazine‐contaminated soils: Evaluating the efficacy on soil and aquatic compartments

    The present study evaluated the bioremediation efficacy of a cleanup tool for atrazine‐contaminated soils (Pseudomonas sp. ADP plus citrate [P. ADP + CIT]) at a semifield scale, combining chemical and ecotoxicological information. Three experiments representing worst‐case scenarios of atrazine contamination for soil, surface water (due to runoff), and groundwater (due to leaching) were performed ...


    By John Wiley & Sons, Ltd.

  • Enhanced Bioremediation in Clay Soils (PDF)

    This case study evaluates the full-scale in-situ application of an electron donor to enhance biodegradation of chlorinated solvents in clay soils and groundwater beneath an active light industrial property in a congested urban setting.A pilot test was successful by varying degrees in three test areas as shown by the production of biodegradation daughter products and microbial end products. The ...


    By Regenesis

  • Enhanced Bioremediation of Chlorinated Solvents (PDF)

    Enhanced in situ bioremediation of chlorinated solvents in groundwater has been successfully demonstrated at many sites by supplying lactic acid as an electron donor. The source of lactate for these successful pilot tests is Hydrogen Release Compound (HRC), a polylactate ester specially formulated for slow release of lactic acid upon hydration. HRC has been delivered to chlorinated ...


    By Regenesis

  • Anaerobic Bioremediation of Trichloroethene at Duluth International Airport

    Untitled Document ABSTRACT: A pilot-study for treatment of trichloroethene (TCE) and dechlorination products, dichloroethene (DCE) and vinyl chloride (VC), is ...


    By Regenesis

  • 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.

  • Outstanding bioremediation in winter months case study

    Alga Power 101 was again able to prove its efficacy when it was utilized on a former industrial site in West Thurrock, Essex, under some extremely challenging conditions. Formerly a scrapyard, the contaminated site was heavily laden with diesel and other fuels. Prior to treatment the TPH of the soil ranged between 8,000mg/kg and 10,000mg/kg. Bioremediation took place between November and December ...


    By A Alga Companhia Limited

  • Sulfate-Enhanced bioremediation of BTEX - Case Study

    Problem A former gas station in North Carolina contaminated groundwater with BTEX from a UST basin. The site is now in the median of a busy four-lane highway. Residents within 250 feet of the site use an irrigation well, prompting the need to conduct proactive remedial action. Site conditions of sand and clay above partially weathered bedrock and depleted sulfate concentrations within the ...


    By EOS Remediation, LLC

  • Enhanced In Situ Bioremediation of Chlorinated Solvents (PDF)

    Anaerobic enhancement of a shallow confined silty sand aquifer has resulted in a substantial biodegradation of a dissolved Tetrachloroethene (PCE) plume at a former metal finishing facility in Secaucus, New Jersey. The injection of a time-release hydrogen compound (HRC™) rapidly converted ambient aquifer aerobic conditions to anaerobic, and maintained such conditions throughout the 6-month ...


    By Regenesis

  • Nanobite bioremediates a Contaminated harbour - Case study

    When a hydrocarbon is spilled on water, it is very visible – floating on the surface, a blue green sheen clearly visible. When applied to an oil spill on water, Nanobite Liquid will not mix with the water and become diluted. Within a minute it attaches to the hydrocarbon, bonding with it and creating a matrix – an agglomerated gel- that remains on the surface and cannot sink, no ...


    By Slick Solutions

  • Bioremediation of hydrocarbon impacted soils - Marchbanks, Dundee

    Client: Dundee City Council Objective: Bioremediation of hydrocarbon contaminated soils to achieve compliance with the Waste Acceptance Criteria (WAC) for Mineral Oil (C10 – C40); with the intention of re-using the soils to Riverside Recycling Centre to be used as a capping layer. Challenge: Approximately 2,800 m3 of hydrocarbon ...


    By Soilutions Ltd

  • 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

  • Accelerated Bioremediation as an Alternative to Conventional Remedial Technologies.

    ABSTRACT: Application of bioremediation as an alternative technology to expedite soil and ground-water remediation has been effective in reducing the concentration of hydrocarbons at an affordable cost. Bioremediation processes can be achieved by the addition of biological organisms into the soil and ground water which are contaminated and are microorganism deficient. The microorganism's ...


    By Regenesis

  • 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

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