water radiological contamination Articles

  • 4 Types of Contaminants in Water

    The EPA says that there are 4 type of water contaminants: physical, chemical, radiological, and biological. Its definition includes anything that is not an actual water molecule. That means that naturally occurring things like sediment and water weeds are considered contaminants along with things like oil and uranium. Chances are good that the type of contaminants your company needs to keep out ...

  • Radiological safety and environmental monitoring aspects of mining and processing of uranium ore at Jaduguda, India

    Low–grade uranium ore is mined and processed in India since the early 1970s. To adhere to the regulatory compliance monitoring of external gamma level, radon and long–lived alpha activity of ore dust is carried out in uranium mines. Apart from this, surface contamination is also monitored in radiologically important areas of ore processing plant. Exposure of occupational workers is evaluated ...


    By Inderscience Publishers

  • 1st coating of DeconGel 1101 on concrete, carbon steel, stainless steel, and plexiglas coupons contaminated with AM-241, Pu-239, and Cs-137

    Radionuclide Solutions The radionuclide solutions used to contaminate these coupons are NIST traceable. The Am-241 solution was prepared from AmCl3 dissolved 1 N HCl. The Pu-239 solution was prepared from Pu(NO3)4 dissolved in 4 M HNO3. The Cs-137 solution was prepared from CsCl dissolved in 0.1 M HCl. I have included all Certificates of Calibration for the stock solutions. For all ...


    By KT Chemicals, Inc.

  • GOOD NEWS FOR DRINKING WATER Independent Test Lab Evaluates Instrumentation forDetecting Radiation in Drinking Water

    Since 9/11 and there are still holes in security of the nation’s infrastructure, particularly for drinking water. This security deficit is currently being addressed in some community water systems with water monitoring instruments. In the 90s the EPA developed a wish list for monitoring contaminants in drinking water. Since that time biological and chemical contaminants have been identified ...


    By Technical Associates

  • Radioactive waste buried beneath Runit Dome on Enewetak Atoll, Marshall Islands

    In the early 1970s after extensive characterisation of fallout the US Pacific Proving Grounds located at Enewetak Atoll began rehabilitation in preparation for the return of indigenous people who were relocated during the Cold War. Cleanup entailed removal and collection of ∼545 GBq of contaminated topsoil, vegetation, and debris (concrete and metal) that was subsequently entombed within an ...


    By Inderscience Publishers

  • Demonstration of DeconGel at Oak Ridge National Laboratory building 2026

    Challenge In 2003 an area behind the hot cells in Building 2026 at the Oak Ridge National Laboratory (ORNL) was flooded with highly contaminated liquids when a liquid low level waste pipe became clogged. The main contaminants of concern are uranium and plutonium. Transferrable contamination levels are in the 1,000,000 disintegrations per minute range. The area is posted as an airborne ...


    By KT Chemicals, Inc.

  • Case study - Ice Blast technology for steam generator decontamination

    Background At Point Lepreau NGS the Health Physics Department looked for alternative decontamination methods that could be applied to reduce the dose expenditure as a result of maintenance on the primary side of our steam generators. Due to the characteristics of the CANDU design (i.e., primary circuit being high purity D2O) introduction of foreign contaminants was also a concern. ...


    By Coulson Ice Blast

  • Case study - Savannah river nuclear solutions

    ENCON’S Evaporators used for decommisioning radioactive waste.  The Company:  Savannah River Nuclear Solutions, LLC (SRNS) Location:   Aiken, South Carolina The Solution:   ENCON Thermal Evaporator (20 oil fired systems) Project Timeline: 2009-2012 Savannah River Site (SRS) is located in south-central South Carolina and occupies an area of about ...


    By ENCON Evaporators

  • What is Environmental Restoration?

    The U.S. Department of Energy's (DOE's) Environmental Restoration Program directs the assessment and cleanup of inactive sites and surplus facilities contaminated from previous defense and non-defense-related programs. All cleanup activities must comply with federal, state, Indian Nation, and local laws and regulations. In completing environmental restoration activities, DOE is committed to ...

  • Properties and Behavior of Radionuclides

    For the purposes of this document, radionuclides should be considered to have properties similar to those of other heavy metals.This does not imply that all radionuclides are heavy metals, but that the majority of sites requiring remediation of radioactively contaminated materials are contaminated with radionuclides that have similar properties. Like metals, the contaminants of concern are ...

  • Online Instrumentation to Protect Wastewater Facilities from Toxic Chemicals

    ABSTRACTSecurity concerns are driving current research to develop means of detecting toxic chemicals in wastewater influents as few online instruments are currently available for this purpose. Online respirometers such as the STIPTox are the obvious choice using existing, established technology. One of these units was recently used successfully in the WERF project 03-CTS-7S “Feasibility Testing ...

  • Extensive remediation of superfund site - case study

    The 80 acre site, formerly a minerals processing facility, was operated primarily to recover lithium and other rare-earth minerals from ores. Raw ores were imported to the site for processing. During one phase of its operations, the facility also processed uranium ores for the government. The site was listed as by the U.S. Environmental Protection Agency (EPA) as a Comprehensive Environmental ...

  • Idaho National Laboratory (INL) Advanced Test Reactor (ATR) - Case Study

    TRA-63 (TRA-605 Warm Waste Line) Failure of Underground 4-Inch Radioactive Warm Waste Pipe and Leakage Discovered During Waste Piping Replacement Construction Project Quick Facts: Pipe Material: Duriron Pipe Pipe Diameter: 4 inches Hole Size: ...


    By InduMar Products, Inc.

  • Ionising Radiation

    Introduction The energy level of some types of radiation is high enough so that when they interact with matter they cause the formation of electrically charged particles or ion-pairs and break molecular bonds. These so-called ionising radiations are by their nature potentially harmful to life; at high doses they can be lethal and at lower doses can cause genetic damage. Ionising radiation occurs ...

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