Decontamination Articles

  • 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

  • How To Handle Chemical Spills & Cleanups

    FAST-ACT is designed for liquid and vapor chemical releases, but the chemicals it attacks does not need to be limited to what we traditionally think of as a chemical spill. Toxic and noxious chemicals can come from a variety of sources such as waste water, decomposition, household chemicals, and animals. Since FAST-ACT can be applied to liquid spill or vapor release enabling Emergency Responders ...


    By Fast-ACT

  • Chemical Spill Response Products & Procedures

    The current political and world climate has forced the Emergency Response Community to take a closer look at the number of potential hazards that they may be called upon to deal with. Of particular concerns are the response to terrorist and/or chemical incidents. Depending on the type of event, responders may be faced with a myriad of challenges and onsite dangers. With a chemical release, the ...


    By Fast-ACT

  • How to Handle Chemical Spills in Laboratories

    Chemical Spill Response Products & Procedures The current political and world climate has forced the Emergency Response Community to take a closer look at the number of potential hazards that they may be called upon to deal with. Of particular concerns are the response to terrorist and/or chemical incidents. Depending on the type of event, responders may be faced with a myriad of ...


    By Fast-ACT

  • Magnetized manganese oxide nanocomposite for effective decontamination of Cd(II) from wastewaters

    In this study, a composite with magnetic properties has been successfully synthesized by a novel and environmentally friendly route and is applied to Cd(II) adsorption for water decontamination. The quantification of the phases obtained by Rietveld refinement has shown the presence of 84% of Mn3O4 and 16% of Fe3O4. Transmission electron microscopy image shows an ...


    By IWA Publishing

  • Application of Fenton oxidation to reduce the toxicity of mixed parabens

    The aims of the present work were to assess the application of a chemical process to degrade a mixture of parabens and determine the influence of a natural river water matrix on toxicity. Model effluents containing either a single compound, namely methylparaben, ethylparaben, propylparaben, butylparaben, benzylparaben or p-hydroxybenzoic acid, or to mimic realistic conditions a mixture of the ...


    By IWA Publishing

  • Preparation and application of magnetite nanoparticles immobilized on cellulose acetate nanofibers for lead removal from polluted water

    Novel magnetic cellulose acetate (CA) nanofibers were fabricated using an electrospinning process. Co-precipitated magnetite iron oxide nanoparticles were immobilized onto CA nanofibers at different weight ratios (0.2–2.5% wt/v) with a CA concentration of 15% (wt %), applied electric voltage of 20 kV, feeding rate of 1.5 ml/h and 7 cm distance between needle tip and collector. The prepared ...


    By IWA Publishing

  • Bio Cabin Case Study

    Site background: As a result of a previously successful planning application on one of their other farms, The Hampton Estate management team agreed that biomass was the preferred fuel for this new project. The project was to build new housing including the conversion of an existing barn on the estate. Description of problem before installation: New heating system to ...


    By Ashwell Biomass Ltd

  • Case study - Dansk Dekommisionering

    Cost effective and environmentally correct handling of radioactive wastewater Client: Dansk Dekommissionering, formerly known as Forskningscenter Risø. The Institution Dansk Dekommissionering was established in September 2003 with the purpose of taking over the responsibility for the nuclear facilities at the Risoe Research Centre. ...


    By Envotherm A/S

  • Global Site Decommissioning - Case Study

    Challenge: A global oil and gas company required final decommissioning at a former terminal and blending facility that had been idle for almost a decade. The 2.5 acre site, located in South Africa, required the removal of all above and below ground structures, underground utilities, process equipment, buildings, concrete slabs and foundations. The objective of ...


    By Antea Group - USA

  • TELUS and Green Standards Partner to Responsibly Decommission Office Spaces Across Canada

    Green Standards and TELUS, Canada’s fastest growing telecommunications provider, have worked together since 2012 to decommission office spaces across the country, including spaces in British Columbia, Alberta, Ontario, Quebec and Nova Scotia. The Objective: As part of an ongoing strategy to reduce the ...


    By GLOBE Foundation

  • Sensitivity of six subantarctic marine invertebrates to common metal contaminants

    A long history of anthropogenic activities in the relatively pristine subantarctic has resulted in areas of accumulated waste and contaminants. Sensitivities to metals of subantarctic and Antarctic species may contrast with related species from temperate and tropical areas, due to the unique characteristics of polar biota. In addition, response to contaminants may be delayed and hence longer ...


    By John Wiley & Sons, Ltd.

  • On the ionization of air for removal of noxious effluvia” (Air ionization of indoor environments for control of volatile and particulate contaminants with nonthermal plasmas generated by dielectric-barrier discharge)

    Abstract Recent developments in the application of controllable air ionization processes that apply dielectric-barrier discharge devices to generate nonthermal plasmas have led to applications for chemical and biological decontamination in indoor air environments. These include significant reductions in airborne microbials, neutralization of odors, and reductions of specific volatile ...

  • Quantification of exposure to fecal contamination in open drains in four neighborhoods in Accra, Ghana

    In low-income countries, rapid urbanization adds pressure to already stressed water and sanitation systems that are critical to the health of communities. Drainage networks, designed for stormwater but commonly used for disposing of waste, are rarely covered completely, allowing residents to easily come into contact with their contents. This study used spatial mapping, documentation of ...


    By IWA Publishing

  • Can towns near Japan`s Fukushima nuclear plant recover?

    A few signs of life are returning to this rural town made desolate by the Fukushima nuclear disaster four-and-a-half years ago: Carpenters bang on houses, an occasional delivery truck drives by and a noodle shop has opened to serve employees who have returned to Naraha's small town hall. But weeds cover the now rusty train tracks, there are no sounds of children and wild boars still roam around ...


    By Associated Press

  • Chemical Cleaning and Decontamination of Refinery and Petrochemical Distillation Equipment

    1. Abstract In refineries and petrochemical plants the equipment needs to be checked during planned shutdown. This can require several weeks of downtime, if columns, vessels, heatexchangers and tanks have to be drained to remove deposits and armful gases such as hydrogen sulfide, benzene and other volatile hydrocarbons. Formation of iron sulfide is very common in oil refineries and ethylene ...


    By Kurita

  • Surface Decontamination of Motor Oil by DeconGel 1101 and 1102

    Abstract Surface decontamination efficacy determination of DeconGel™ 1101 and 1102 on aluminum, stainless steel, and concrete surfaces contaminated with Motor Oil (polyaromatic hydrocarbons fraction) was performed with LC/MS (Liquid Chromatography/Mass Spectrometry) according to Environmental Protection Agency (EPA) SW-846 Methods: 3500C (sampling), 8321B (analysis), and 1654A ...


    By KT Chemicals, Inc.

  • Surface Decontamination of Mercury Compounds (Mercury(II) Oxide (HgO)) by DeconGel 1101

    Abstract Surface decontamination efficacy determination of DeconGel™ 1101 on stainless steel, carbon steel, and concrete surfaces contaminated with mercury compounds (mercury(ll) oxide (HgO)) was performed with ICP-OES (Inductively Coupled Plasma-Optical Emission Spectroscopy) according to Environmental Protection Agency (EPA) SW-846 Methods 3005A (sampling) and 6010C ...


    By KT Chemicals, Inc.

  • Surface Decontamination of Industrial Solvents (m-Cresol) by DeconGel 1101

    Abstract Surface decontamination efficacy determination of DeconGel™ 1101 on stainless steel, aluminum, and concrete surfaces contaminated with Industrial Solvents (m-Cresol) was performed with LC/MS (Liquid Chromatography/Mass Spectrometry) according to Environmental Protection Agency (EPA) SW-846 Methods 3500C (sampling) and 8321B (analysis). Hazardous Materials ...


    By KT Chemicals, Inc.

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