Radioactive Waste Articles

  • How to treat radioactive NORM sludge with VacuDry

    NORM doesn’t sound like a big thing. But Naturally Occurring Radioactive Material might let the alarm bells ring. Everyone has heard of “radioactive material” and that sounds dangerous. However, most of this material is trapped deep in the ground beneath our feet. From there it reaches the surface, for example via the water cycle. Another possible pathway for NORM to reach the ...


    By econ industries GmbH

  • 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

  • Industrial and agroindustrial wastes: an echotechnological approach to the production of supported photocatalysts

    Agroindustrial wastes (rice husk, exhausted bark acacia, and tobacco dust) and foundry sands from the iron foundry industry were employed as a support source for photocatalysts. TiCl4 was used as the titanium precursor in the preparation of the supported photocatalysts. The solids were characterized by scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX), diffuse ...


    By IWA Publishing

  • Radiator with a Payback Commissioned in Nevada - Case Study

    ElectraTherm Commissions First Radiator with a PaybackORC Technology Replaces Engine’s Radiator, Offsets Radiator Capital Cost and Generates Electricity ORC Application on a Cummins KTA-50 Site: Reno, NV ElectraTherm partnered with the U.S. Department of Defense (DoD) to commission the first fully-integrated ...


    By ElectraTherm

  • Commercial Nuclear Power Plants Decontamination - Case Study

    Customers Include: Nuclear Power Plants: Perry, Ontario Power Generation, Peach Bottom, Savanna River, etc. Service/Product Providers: Alaron, RADeco, UniTech Applications Include: Decontamination of waxed concrete and painted diamond plate, with DFs of 100 percent in a single pass on surfaces with 100-200k dpm/100 cm2 ...


    By METIS Scientific

  • Highly effective biosorption of Sr(II) from low level radioactive wastewater

    Bacillus subtilis was first used to remove Sr(II) from low-level radioactive wastewater. Influence parameters, biosorption kinetics and biosorption equilibrium were investigated. The results showed that the maximum adsorption capacity of Sr(II) at over 2,000 mg g−1 by Bacillus subtilis was higher than for other biosorbents. At pH 6.3, Sr(II) concentration ...


    By IWA Publishing

  • Safety/risk assessment methodologies of deep geological facilities: results from a cross–national comparison

    Any geological disposal/storage facility must prove its safe performance prior to licensing, regardless of whether the compound is solid radioactive waste (RW) or gaseous carbon dioxide (CO2). The disposal/storage facility is considered safe if it meets the relevant safety standards and proves its reliable safe performance over defined timescales. This paper presents a ...


    By Inderscience Publishers

  • Management of spent nuclear fuel and its waste

    The spent nuclear fuel from the operation of nuclear power plants needs to be managed in a safe, responsible and effective way. Several possibilities exist to deal with the spent fuel. Within the so-called “open fuel cycle”, it is disposed of without further use. When “closing the fuel cycle”, the energetic component in the spent fuel, plutonium and uranium, is extracted ...

  • Biosorption of uranium(VI) from aqueous solution by biomass of brown algae Laminaria japonica

    The uranium(VI) adsorption efficiency of non-living biomass of brown algae was evaluated in various adsorption experimental conditions. Several different sizes of biomass were prepared using pretreatment and surface-modification steps. The kinetics of uranium uptake were mainly dependent on the particle size of the prepared Laminaria japonica biosorbent. The optimal particle size, contact ...


    By IWA Publishing

  • Research output in radioactive waste management based on non–conventional literature

    This paper identifies the research paradigms in the area of radioactive waste management based on the technical reports retrieved from the International Nuclear Information System (INIS) from 1970 to 2012. The aim is to determine the volume of research output, the countries involved in the research; collaboration network has been studied at the micro level (individuals) and the macro level ...


    By Inderscience Publishers

  • Sogin: best practice in supplier qualification

    The purchasing and procurement policy of the Italian Sogin company, which is engaged in the reclamation of nuclear sites and management of radioactive waste, helps to ensure safety and quality during all work stages so as to protect workers, citizens and the environment.Keywords: Sogin, Nucleco, nuclear decommissioning, radioactive waste, waste management and disposal, qualification system, ...


    By Inderscience Publishers

  • Removal of radioactive Cs from gravel conglomerate using water containing air bubbles

    Remediation of sites contaminated with radioactive material such as Cs is important because of the risk posed to human health. Here, we report the effectiveness of water containing air bubbles with a diameter around 100 nm (nanobubbled water, NB water) for the removal of radioactive Cs. Laboratory experiments confirmed that NB water is more effective than purified water and as effective as water ...


    By IWA Publishing

  • Nuclear Plant in southeastern United States case study

    Turning Liquid Waste into Solid Money Savings using QUIK-SOLID© Project Background: A nuclear plant located in southeastern United States had to dispose of approximately 7,000 gallons (26,488 L) of liquid sludge that resulted from aggressive preventive maintenance activities. The plant stored the watery sludge in B-25 boxes (90 ft each). The slightly ...


    By CETCO

  • Industrial Trash Compactor: Factors to Consider when Making a Selection

    Generation of waste material is inevitable in the course of industrial production and the volume can soon exceed manageable amounts, if not handled professionally. Besides this, it is mandatory by law for industries to make proper provision for it, keeping in mind the environment implications. However waste recycling has to make commercial sense too for the industries. The use of a ...

  • Methane emission potential of open dumps in Chennai: a case study

    Monitoring of atmospheric levels of methane and other Greenhouse Gases (GHGs) holds great promise for the mitigation of global warming resulting from increasing radioactive trapping by atmospheric gases. Since, the direct measurements of landfill methane emission found to be difficult, the methane emission potential of the open dumps in Chennai has been estimated using first–order decay models ...


    By Inderscience Publishers

  • Processing technology for radioactive wastes

    For 20 years now, AVA has been delivering innovative mixers, dryers, and systems for environmental and processing technologies. The treatment of highly contaminated materials has always been one of our core competencies. For more than 10 years, AVA Technology has been applied for the processing of radioactive wastes. The application of AVA mixers and reactors may be divided into two main ...


    By AVA - Huep GmbH u. Co. KG

  • Establishment of a radioactive contamination index in seawater from the Gulf and Pacific coasts in Mexico

    This paper intends to establish one radioactive contamination index in seawater based on the relation A1/A2, where A1 is the radioactivity due to the contaminant radioisotope 137Cs and A ...


    By Inderscience Publishers

  • Need a swifter, safer way to mop up toxic waste? Blue goo may do.

    Scouring radioactive waste usually means just that. Scrub with soap and water, pails and brushes. Repeat. If it sounds messy, it is—and dangerous too for those exposed to dust and contaminated wastewater.  Hawaii-based CBI Polymers says it's come up with a better way to clean up nuclear waste. The firm's blue goo may not look high-tech; all you do is pour it. But as the ...


    By METIS Scientific

  • Geostatistical Methodology For Waste Optimization Of Contaminated Premises

    Summary At the end of process equipment dismantling, the complete decontamination of nuclear facilities requires the radiological assessment of residual activity levels of building structures. As stated by the IAEA: “Segregation and characterization of contaminated materials are the key elements of waste minimization”. From this point of view, the set up of an ...


    By Geovariances

  • Radioactive Clean-up

    Radioactive, nuclear, or radiation clean-up is considered as the most dangerous, difficult, and costly remediation activity after a nuclear disaster or accident.  The contamination may be found in the air, water, and soil, as wells as equipment and buildings (USEPA, 2010). Radioactive material is unstable, while the nuclei of radioactive atoms emit ionizing radiation (i.e., alpha ...


    By IWA Publishing

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