bioremediation well 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. ...

  • Bioremediation in Denmark - a case study

    Back in the 1990s the closure of several fuel stations in Denmark led to extensive land contamination as underground storage tanks gradually began leaking. After six years of attempted clean-up by the companies concerned the regulatory bodies concluded the situation had not been sufficiently addressed. As a result they refused to complete payment schedules which were based on the success of the ...


    By Ive Design

  • JP-4/JP-8 Bioremediation Using ORC® Pumped into Permanent Injection Wells (PDF)

    At Nellis Air Force Base, Nevada, a site investigation revealed that two separate floating product plumes and a larger dissolved plume consisting of JP-4 and JP-8 jet fuel existed. Floating product thicknesses ranged from less than one-half inch to almost three feet. The length of the dissolved plume extended about 700 ...


    By Regenesis

  • Petrox® bioremediation of trimethylbenzene isomers

    Remediation of trimethylbenzene isomers (TMB) is particularly challenging, but effective options including bioremediation are available. TMB is has characteristics similar to the BTEX compounds and some similar to middle range fractions such as naphthalene. These characteristics are summarized in the following table. The solubility of TMB is much lower than BTEX compounds, but much higher than ...


    By CL Solutions, LLC

  • Surfactant enhanced bioremediation (SEB)

    Surfactant Enhanced Bioremediation (SEB®) using Ivey-sol® involve the use of Ivey-sol formulations which are patented non-ionic surfactant mixtures used in the in-situ and ex-situ treatment of petroleum hydrocarbons, heavy metals, and more recently radioactive type contaminated waste. These surfactant formulations have the ability to enhance soil biodegradation. During In-situ and Ex-situ ...


    By Ivey International Inc.

  • 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

  • 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 Accelerates Brownfield Cleanup

    Untitled Document Bioremediation, using CL-out microbes, clears the obstacles to Brownfield redevelopment by reducing wells contaminant concentrations in groundwater and removing the ...


    By CL Solutions, LLC

  • 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 ...

  • In Situ Bioremediation of Chlorinated Solvents

    ABSTRACT: In situ bioremediation is ongoing at a former manufacturing facility in Portland, Oregon.  Shallow groundwater at the site was impacted by chlorinated solvents, primarily trichloroethene and degradation products cis-1,2-dichloroethene and vinyl chloride.  In situ chemical oxidation treatment was completed in 2003 via the injection of sodium permanganate in source ...


    By EOS Remediation, LLC

  • 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 ...

  • Bioremediation of groundwater at a gas station in PA

    The target compounds detected in the source area wells (MW-1, OW-A, and OW-B) decreased during the eight quarterly sampling events performed since the injection of HydroRemed. These compounds included benzene, ethylbenzene, naphthalene, toluene, 1,2,4-TMB, and 1,3,5-TMB. During the last three quarters (November 2011 to May 2012), the only target compounds 1,2,4-TMB and 1,3,5-TMB, were drastically ...


    By Sarva Bio Remed, LLC

  • 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

  • Bioaugmentation for accelerated in-situ anaerobic bioremediation

    A successful anaerobic bioaugmentation was carried out on a trichloroethene (TCE)-contaminated aquifer at Dover Air Force Base, DE, using a microbial enrichment culture capable of dechlorinating TCE to ethene. A hydraulically controlled pilot system 12   18 m was constructed 15 m below ground surface in an alluvial aquifer to introduce nutrients and substrate into the groundwater. ...


    By Terra Systems, Inc. (TSI)

  • 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

  • Horizontal Wells - Technology Overview

    Horizontal well technology has been incorporated into many current environmental remediation applications (and associated contaminants), such as in situ bioremediation, air sparging, vacuum extraction, soil flushing, free product recovery, etc. Ac cording to information reviewed, this technology is most applicable to sites with relatively shallow soil and/or groundwater contamination, and can ...

  • 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

  • In Situ Bioremediation of Soil and Groundwater: A Case Study

    Untitled Document The subject site is located in downtown Denver, Colorado and was formerly operated as a bulk petroleum storage facility. Bulk storage of gasoline, diesel and fuel ...


    By Regenesis

  • 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

  • Surfactant desorption is key to successful PAH bioremediation

    Formulations which are patented non-ionic surfactant mixtures used in the in situ and ex situ treatment of petroleum hydrocarbons, chlorinated solvents, heavy metals, and more recently PAHs, PCBs and MTBE type contaminated waste are involved in Surfactant Enhanced Bioremediation (SEB®) using Iveysol ®. These surfactant formulations have the ability to enhance soil biodegradation. During in ...


    By Ivey International Inc.

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