chlorinated solvents spill Articles

  • How to: Bioremediate chlorinated solvents without accumulating metabolites

    Chlorinated volatile organic compounds (CVOCs)such as tetrachloroethylene (PCE) and trichloroethylene(TCE), commonly used as dry cleaningsolvents and degreasers, pose an ongoing threatto human health and wildlife when spilled intogroundwater. Through the injection of bioremediation productsinto the impacted groundwater, the chlorine atoms can be removedfrom these compounds in situ. However, ...


  • How To: Bioremediate chlorinated solvents without accumulating metabolites

    Chlorinated volatile organic compounds (CVOCs) such as tetrachloroethylene (PCE) and trichloroethylene (TCE), commonly used as dry cleaning solvents and degreasers, pose an ongoing threat to human health and wildlife when spilled into groundwater. Through the injection of bioremediation products into the impacted groundwater, the chlorine atoms can be removed from these compounds in situ. ...


  • Standard Chlorine of Delaware Remediation

    By designing a 70-foot deep barrier wall, Black & Veatch was able to cut off contaminant source areas from a creek near New Castle, Delaware. The groundwater treatment system that Black & Veatch designed prevents site contamination from reaching the underlying drinking water aquifer. The Standard Chlorine of Delaware Site is a 65 acre area including an abandoned chlorobenzene ...


    By Black & Veatch Corporation

  • Air Monitoring for the Gulf Oil Spill

    Ambient air monitoring is a priority in the ongoing efforts to contain and manage the oil spill from the Deepwater Horizon in the Gulf of Mexico. The following provides information about the kinds of airborne contaminants that are currently being monitored in the Gulf, how they are collected and how they are analyzed. For a given project, a suitable sampling plan – developed by ...


  • Bioremediation of DNAPL

    Dense non-aqueous phase liquid (DNAPL) are mixtures of organic compounds that when combined have a specific density greater than water, which has a specific density of 1.00. They sink through water and form a separate liquid phase below the water. DNAPL mixtures can include compounds such as chlorinated solvents, PCB oils, coal tars, and creosotes (complex mixtures consisting of polycyclic ...

  • Soil and groundwater remediation

    At a site in northern Indiana on behalf of a multinational client, Troy Risk operated a groundwater remediation system to cleanup the source of chlorinated solvent impact to a groundwater aquifer system. Prior to 1988, the site was occupied by a manufacturing facility. In March 1995, chlorinated volatile compounds (CVOCs) were detected pursuant to due diligence for real estate refinancing. From ...


    By Troy Risk, Inc.

  • Effective treatment of MtBE and breakdown products using C-Sparge and Perozone®

    Ozone oxidation systems like C-SpargeTM (microbubble ozone) and Perozone® (peroxide-coated ozone) are used for treatment of a variety of contaminants. From non-volatile to volatile compounds, from saturated to unsaturated compounds. The most common contaminants treated are chlorinated solvents, petroleum products and PAHs. Engineered microbubble systems with ozone (C-SpargeTM) or a combination of ...


    By Verhoeve Milieu & Water

  • Printing Industry - Pollution Prevention Guidelines

    Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum ...


    By The World Bank

  • Remediation of silty-clay hydrocarbon contaminated site using Ivey-sol selective phase transfer technology

    Earlier this year, Ivey International Inc. secured its first remediation project in Alberta using its Ivey-sol Selective Phase Transfer Technology (SPTT). This patented technology is being used to treat extensive soil and groundwater contamination at an active service station in Red Deer, Alberta. With a residential area nearby, the environmental sensitivity is relatively high. Unfortunately, ...


    By Ivey International Inc.

  • The Bioremediation Process

    Bioremediation allows natural processes to clean up harmful chemicals in the environment. Microscopic 'bugs' or microbes that live in soil and groundwater like to eat certain harmful chemicals, such as those found in gasoline and oil spills. When microbes completely digest these chemicals, they change them into water and harmless gases such as carbon dioxide. In order for microbes to clean up ...


  • Firm pioneers PCB clean-up solution

    Untitled Document A Vancouver firm's bid to test a revolutionary technology that could provide a solution to the world's PCB problems was given initial support from Richmond's community ...


  • Organic Strategies for Today`s Business Environment

    In Today’s Business Environment, Successful Businesses Use Organic Strategies To Add Value Organic Strategies Assure Businesses Minimize Risk, Maximize Value And Optimize Performance while achieving hit ratios in excess of 90% Today’s globally transparent business environment, feeding off the information highway, has brought an end to some traditional business/sales theories. In a global ...


  • Compost Markets Grow With Environmental Applications

    The use of compost in various environmental applications is one of the most intensive areas of compost research being pursued today. The high organic matter content and biological activity of compost makes it effective for use in a variety of applications. Five of these will be reviewed in this article: erosion control, revegetation, biofiltration, bioremediation, and wetlands construction. ...


    By BioCycle Magazine

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