PCB Articles

  • PCB removal

    Project Profile:PCB Removal from Ground Water DATA: End User: Aluminum Producer Location: Pacific Northwest, USA Commisioned: Summer, 2002 Units: (3) model FDB-340P (340 ft2/filter) Flow Rate: 12,000 gpm (17.3 Million gallons of water per day) ...


    By Filtra Systems

  • Dioxin and PCB determination in foodstuffs

    SpeedExtractor E-914: Pressurized solvent extraction for the determination of dioxins and PCBs in dairy, egg, pork and fish The determination of dioxins and PCBs in foodstuffs is performed to monitor the potential exposure to humans. A reliable and fast  method is introduced. Proficiency test samples were extracted with the SpeedExtractor E-914, followed by an automated clean-up ...


    By BÜCHI Labortechnik AG

  • The 1998 PCB Disposal Amendments: Guide to the 1998 PCB "Mega Rule"

    INTRODUCTION On June 29, 1998, the U.S. Environmental Protection Agency (EPA) promulgated a sweeping series of changes in the PCB regulations under the Toxic Substances Control Act (TSCA). Commonly known as the Mega-Rule or PCB Disposal Amendments (due to its focus largely on waste management issues), this long-awaited rule encompasses more than 80 changes in the regulations and spans more ...


    By Weston Solutions, Inc

  • Surface Decontamination of PCBs (PCB-laden oil) by DeconGel 1101 and 1102

    Abstract Field testing aboard the USS Missouri maritime museum vessel showed that excellent surface decontamination was achieved by applying DeconGel™ 1102 onto contaminated surfaces, resulting in encapsulation of PCB contaminant by DeconGel's active components. For all contaminated surfaces tested, EPA PCB limit standards (Regulations 761.79, 761.123) of < 10 ug/100 cm2 were ...


    By KT Chemicals, Inc.

  • How To Keep Your Tablet Press Clean

    10 Easy Steps for Cleaning Your Tablet Press Nothing can slow production down like equipment that malfunctions or stops working altogether. Performing regular, preventative maintenance of equipment is essential and helps keep pharmaceutical tablet presses functioning efficiently and smoothly. ...

  • Converting the dreaded PCBs into useful commodities

    For decades polychlorinated biphenyls (PCBs) have been high on the list of toxins the public fears. A new vitrification technology is claimed to be able to completely destroy PCBs and other toxins in contaminated sediment by meltingit into a glass aggregate product that can be used in the construction industry. This process, developed by Minergy Corp., costs about as much as landfilling, without ...


    By Minergy Corporation Limited

  • Moderate size PCB contractor and aerospace contractor

    "If you're buying a cleaner from us, why not buy a closed-loop wastewater recycling system from us at the same time?" discussion: One cleaner vendor supplied a complete cleaner and separate closed-loop WASTEWATER recycling system to each of two different customers in California. After the systems were installed, neither customers could get the systems to function as a closed-loop ...

  • Bioavailability and bioaccumulation of sediment‐bound PCBs to carp

    The relative bioavailability of sediment‐bound polychlorinated biphenyls (PCB 138, 153 and 180) from a local contaminated site was examined using an in vivo carp model. Surface sediment from the PCB contaminated site and spiked canola oil containing equivalent masses of PCBs were respectively incorporated in the “sediment‐dosed diets” and “oil‐dosed diets” at 3 dose levels resulting in 6 ...


    By John Wiley & Sons, Ltd.

  • Case study - PCB Containment - ICA of Jacksonville

    Location: Jacksonville, FL System Applied: JBT 303 Substrate / Area: PCB Containment, 38,000 sq.ft. Date Completed: November 2005 Quality Control: Dudley Primeaux II, Primeaux Associates, LLC Project Description The building was scheduled for demolition, but the existing slab was impacted with PCB. It was ...

  • Activated Carbon Applications Excel at PCB Removal

    TIGG’s GAC adsorption equipment is used to remove PCBs from groundwater. For more than 50 years, polychlorinated biphenyls (PCBs) were commonly used in industrial materials including, caulking, cutting oils, inks, paints and as dielectric fluids in electrical equipment such as transformers and capacitors. Concerns over health effects led to a North American ban of ...


    By TIGG, LLC

  • Procedure for pcb rapid assay installation on the RPA-I

    GENERAL COMMENTS: New RaPID Assay methods can be programmed by the operator into the RPA-I analyzer. This Technical Bulletin is a guide to the mnuaal installation of the PCB method on the RPA-I using the keypad. Please refer to the RPA-I Manual for a detailed discussion. PROTOCOL: 1. Turn on the RPA-I. 2. Press the [OPTION] key on the top right side of the ...


  • Towards Ecosystem Based Sediment Quality Guidelines for PCB

    To investigate whether Sediment Quality Guidelines (SQG) for PCBs in Canada and British Columbia achieve their objective of protecting ecosystems, we measured and compiled concentrations of PCB congeners in sediments, bivalves, crustaceans, fish and marine mammals from three areas off the pacific coast of British Columbia, Canada. The concentration data showed that while PCB concentrations in ...


    By John Wiley & Sons, Ltd.

  • Differentiating Polychlorinated Biphenyls (PCB’s) by GC / FID / ECD

    The analytical chemistry of PCB’s is rigorous, demanding the highest quality in sample preparation and analytical technique. Insufficient sample extraction and inappropriate methods of sample clean-up are the most common sources of error in PCB analysis, which causes significant interference in the chromatography. However, even in relatively clean samples the problem remains to confidently ...


    By Buck Scientific Inc

  • Establishing PCB Cleanup Levels for Historical Spills in Texas

    INTRODUCTIONPolychlorinated biphenyls (PCBs) are a mixture of chlorine atoms and biphenyl molecules that combine to form complex chlorinated organic compounds that were manufactured and widely used in the United States from the 1940s through 1978. The chemical characteristics of PCBs made them desirable for use because of their electrical properties and low flammability. Unfortunately, the PCBs ...


    By Weston Solutions, Inc

  • Method of low temperature pyrolysis as an answer for PCBs utilization.

    When people buy new computers, TV-sets or trendy mobile phones they do not think much about the future of substituted models. In a consumer society where devices are changed due to their obsolescence rather than break down the problem of pollution by e-wastes becomes more relevant. Disposal of printed circuit ...


    By Technokomplex

  • Application of a Tenax model to assess bioavailability of PCBs in field sediments

    Bioavailability has been estimated in the past using equilibrium partitioning‐based biota‐sediment accumulation factors; however, these values are not always reliable using field‐collected sediments likely due to varying amounts of different types of organic carbon, particularly black carbon, in sediments. Therefore, improving approaches to better evaluate contaminant bioavailability in sediment ...


    By John Wiley & Sons, Ltd.

  • Evaluation of PCB bioacumulation by Lumbriculus variegatus in field‐collected sediments

    Review of data from several contaminated sediment sites suggested that biota‐sediment accumulation factors (BSAFs) declined with increasing contaminant concentrations in the sediment. To evaluate the consistency and possible causes of this behavior, polychlorinated biphenyl (PCB) contaminated sediment samples from the Hudson, Grasse, and Fox Rivers Superfund sites were used in sediment ...


    By John Wiley & Sons, Ltd.

  • Modeling the long-term effect of PCBs on Everglades fish communities

    Fish communities are regularly exposed to a large number of natural and synthetic toxic chemicals, whose harmful effects, both short-term and long-term, need to be studied. Mathematical simulation models are known to be useful tools in the assessment of both acute and chronic effects. A time-concentration-effect model has been developed to assess the long-term effect of PCBs on multi generations ...


    By Springer

  • Application of a Tenax model to assess bioavailability of PCBs in field sediments

    Recent literature has shown that bioavailability‐based techniques, such as Tenax extraction, can estimate sediment exposure to benthos. In our previous study, Tenax extraction was used to create and validate a literature‐based Tenax model (TM) to predict oligochaete bioaccumulation of polychlorinated biphenyls (PCBs) from sediment; however, its ability to assess sediment remediation was ...


    By John Wiley & Sons, Ltd.

  • Proof of concept for the use of macroinvertebrates as indicators of PCB contamination in Lake Hartwell

    The U.S. Environmental Protection Agency (EPA) develops methods and tools for evaluating risk management strategies for sediments contaminated with polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), and other legacy pollutants. Monitored natural recovery (MNR) is a risk management alternative that relies on existing physical, chemical, and biological processes to ...


    By John Wiley & Sons, Ltd.

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