advanced bioremediation Articles

  • 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 ...

  • Innovative Uses of Compost Bioremediation and Pollution Prevention

    Each year agricultural effluents, industrial residues, and industrial accidents contaminate surface waters, soils, air, streams, and reservoirs. A new compost technology, known as compost bioremediation, is currently being used to restore contaminated soils, manage stormwater, control odors, and degrade volatile organic compounds (VOCs). Compost bioremediation refers to the use of a biological ...

  • Sono-biodegradation: a promising alternative to existing bioremediation methodologies

    Pollution of fresh water has become a serious concern today for developing countries. There are umpteen treatment methodologies and protocols, but still there exists a demand for new technologies for wastewater treatment. Extensive research on pollutants and increased toxicological studies have paved the way for new technologies, such as ultrasound treatment of pollutants and wastewater ...


    By Inderscience Publishers

  • 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

  • High Benzene Concentrations Reduced Using ORC Advanced

    Site Summary Elevated levels of petroleum hydrocarbons were discovered near the former dispenser island at a former servicestation in Sheboygan, WI. In hopes of reducing concentrations, soil excavation activities took place in June 2003. Atotal of 500 tons of hydrocarbon-impacted soils were removed and transported to a landfill for disposal. However,residual contamination continued ...


    By Regenesis

  • Pilot Scale Application of ORC Advanced Reduces TPH and MTBE

    Site Summary ORC Advanced releases a maximum of 17% by weight of oxygen into a saturated area. Such a high release of oxygen can effectively reduce high concentrations of contaminants, allowing for successful bioremediation of source areas. A petroleum contaminated site in Virginia had TPH and MTBE contamination at levels much higher than MCLs. The source area contained concentrations of TPH and ...


    By Regenesis

  • Replacement of P&T with ORC Advanced Reduces Cost to Closure

    Site Summary Two leaking USTs resulted in soil and groundwater contamination at a service station in Michigan. Naphthalene, trimethylbenzene (TMB) and BTEX contamination were discovered in the subsurface prompting the need for remedial cleanup. Michigan DEQ began remediation via UST removal and soil excavation. A total of 4,000 cubic yards of contaminated soil was removed. A pump and treat ...


    By Regenesis

  • Enhanced Bio-Remediation of Wastewater

    Bioremediation has been used to treat hydrocarbon contamination in municipal wastewater for centuries. Most microbes used in bioremediation today are naturally occurringyetspecifically chosen and cultured versus being genetically modified. Bioremediation rivals techniques such as pump and treat extraction systems, as it provide cost savings for municipalities, as well as environmental savings by ...


    By DELTA REMEDIATION INC

  • Applied science drives commercial decision-making

    Site remediation has evolved from energy intensive, mechanically driven remediation processes to more effective and less expensive in-situ processes. The most common in-situ remediation technology is bioremediation although knowledge of in-situ chemical treatments has advanced significantly and it is now frequently implemented on contaminated sites. Microorganisms in the ground have the ability ...


    By WSP | Parsons Brinckerhoff

  • Aquifers and hyporheic zones: Towards an ecological understanding of groundwater

    Ecological constraints in subsurface environments relate directly to groundwater flow, hydraulic conductivity, interstitial biogeochemistry, pore size, and hydrological linkages to adjacent aquifers and surface ecosystems. Groundwater ecology has evolved from a science describing the unique subterranean biota to its current form emphasising multidisciplinary studies that integrate hydrogeology ...


    By Springer

  • 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 ...

  • 3-D Microemulsion (3DMe)™ Superior Distribution: Cost-Effective Treatment of Large Plumes

    3-D Microemulsion (3DMe)™, a form of HRC Advanced®, is the current state-of-the-art in slow-release electron donor products for the in-situ treatment of chlorinated solvents in groundwater. By employing a sequential, staged release of hydrogen, 3DMe provides an immediate and long-term release of hydrogen for enhanced longevity. Equally as important is the compound’s unique self-distribution ...


    By Regenesis

  • In situ Remediation of 1,4-Dioxane using Electrical Resistance Heating

    An increasing number of states are establishing enforceable 1,4-dioxane cleanup goals due to recent improvements in analytical detection methods and existing carcinogenic risk information for 1,4-dioxane. Historically, 1,4-dioxane was used as a stabilizer for chlorinated solvents, primarily 1,1,1-trichloroethane. In addition, 1,4-dioxane has been used in a broad range of products including but ...


    By TRS Group, Inc.

  • The “Straight Skinny” on bentonite-based drilling muds & their standard practice use in the horizontal remediation well industry

    Let’s make our point up front: 1) bentonite-based drilling fluid is NOT bad for horizontal remediation well (HRW) projects; 2) it does not damage the formation; 3) it is a naturally occurring clay material that is mined; and 4) it does flush easily/adequately during well development. Most remediation professionals have designed and/or installed vertical wells at one time or another ...

  • EPA Technology News & Trends - Tacoma “Well 12A” Superfund Site

    The U.S. EPA Region 10 office uses an adaptive site management approach that relies on high-resolution site characterization (HRSC) techniques for strategic sampling at the Well 12A project area. This approximate one-square-mile project area is one of three at the 2.5-square-mile Commencement Bay-South Tacoma Channel Superfund site in Tacoma, Washington. The vicinity of Well 12A, one of 13 wells ...


    By TRS Group, Inc.

  • Vinyl Chloride Attenuation By Direct Injection of Time-Release Magnesium Peroxide.

    ABSTRACT: This case study shows that there is potential to remediate dissolved vinyl chloride by oxygenation in the field. Residual vinyl chloride concentrations have been remediated in the field at a mid-western site with a phosphate-intercalated peroxygen (ORC®, a proprietary formulation of magnesium peroxide that releases oxygen slowly). The site was formerly operated as an aluminum coating ...


    By Regenesis

  • The Alternative to Pump and Treat

    Sometimes, an important technological advance begins with a small step – back! Such is the case with remediation of hydrocarbons from groundwater utilizing existing recovery and monitoring wells. For the past few years, state government has based decisions on the amount of clean up that they require by the risk posed to the environment. Risk Based Corrective Action, commonly called 'Rebecca' ...


    By Abanaki Corporation

  • Stevens Enhances Groundwater Remediation Effectiveness

    The Stevens HydraProbe is now being used to monitor the progress of a new groundwater pollution clean up method called phytoremediation. Phytoremediation is the method by which trees are used to pull contamination out of groundwater. Remediation of contaminated aquifers can take many years to complete. The ...

  • Operator Strategies : Sorting Out the Plastic

    BETTER BUGS Ideas and products in the Better Bugs category attempt to affect the biological components and biochemistry of processes by altering the mix of microorganisms or enzymes present. After all, biology is the foundation of many, if not most, organics recycling systems. Pyrophiles: The first example of Better Bugs involves pyrophilic organisms, bugs that can take the heat. This example is ...


    By BioCycle Magazine

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