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uranium Applications

  • Uremediate soil and water remediation of Uranium

    Please see files for more information. The following mechanisms of direct bacteria-uranium interactions are described: i) oxidation of U(IV) to U(VI) resulting in solubilization; ii) bioaccumulation, which includes processes of bio-sorption by cell surface iii) reduction of U(VI) to insoluble U(IV); polymers and/or uptake inside the cells. iv) The U(VI) accumulated both on the bacterial surfaces or inside the cells as well as biologically reduced U(IV) precipitates can initiate bio-mineralization processes, which result in immobilization of additional amounts of uranium. v) Dose rate: 300 gm per Ton Biomass (for soil treatment). vi) Dose rate: 100 gm per KL (for water treatment).

    By Terawet Green Technologies, Inc. (TGT) based in San Diego, CALIFORNIA (USA).

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    Phosphorimetric determination of uranium in water

    Introduction

    The presence of uranium in water causes radiological pollution as all uranium radionuclides decay by both alpha and gamma emissions. Chemical aspects of uranium toxicity include mainly nephritis and other renal diseases. Mentioned harmful features affect on humans even in low concentrations thus requiring sensitive analysis methods.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Water Treatment Solutions for Uranium Removal

    AdEdge provides treatment systems for for Uranium removal using AD92 an anion exchange media that is ideal for use in potable water as well as non-potable and environmental remediation applications for removal of naturally occurring uranium. The high efficiency AD92 can selectively remove the negatively charged uranium anion (most often in the form of uranyl carbonate) to below the existing EPA MCL of 30 ug/L. The AdEdge AD92 systems can deliver the needed performance in two ways: (1) via regeneration type systems which use the media to remove the uranium with periodic regeneration using NaCl brine; or (2) as a “throw away” discardable media, which can be discarded when spent. This option maximizes the very high capacity of the AD92. Where on-site regeneration is not available, this disposal option is the preferred option. Disposal options will vary based on federal, state, and local regulations.

    By Adedge Water Technologies, LLC based in Buford, GEORGIA (US) (USA).

  • Industrial water Uranium recovery & purification

    The type of Uranium mineralization and the nature of its association within a particular deposit will have a major impact on process route selection. Uranium minerals are classified according to their influence on extractive metallurgy. The presence of impurities such as Vanadium, Molybdenum, and others may dictate that ion exchange is to be employed.

    By PuriTech Ltd based in Herentals, BELGIUM.

  • Uremediate soil and water remediation of Uranium

    Please see files for more information. The following mechanisms of direct bacteria-uranium interactions are described: i) oxidation of U(IV) to U(VI) resulting in solubilization; ii) bioaccumulation, which includes processes of bio-sorption by cell surface iii) reduction of U(VI) to insoluble U(IV); polymers and/or uptake inside the cells. iv) The U(VI) accumulated both on the bacterial surfaces or inside the cells as well as biologically reduced U(IV) precipitates can initiate bio-mineralization processes, which result in immobilization of additional amounts of uranium. v) Dose rate: 300 gm per Ton Biomass (for soil treatment). vi) Dose rate: 100 gm per KL (for water treatment).

    By Terawet Green Technologies, Inc. (TGT) based in San Diego, CALIFORNIA (USA).

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    Nitrous oxide (laughing gas)

    Example: Uranium enrichment. Similar tasks: Nitric acid caprolactam production.

  • Applications and Air Pollutants Removed in Nuclear Fuel Processing – Energy-Nuclear Power

    Removal of uranium hexafluoride particulate and other radioactive compounds from processing operations.

    By Bionomic Industries Inc. based in Mahwah, NEW JERSEY (USA).

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    Water Treatment Solutions for Radium Removal

    Radium is found naturally in uranium ores. It is an alkaline earth metal that decomposes in water and  it is over a million times more radioactive than the same mass of uranium. As a radiological hazard that emits alpha, beta, and gamma rays, it is a carcinogen.

    By Adedge Water Technologies, LLC based in Buford, GEORGIA (US) (USA).

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    EDXRF spectrometers for mining & mineral industry

    Xenemetrix advanced ED-XRF spectrometers provide on-site quantitative analysis of mining products, thereby reducing the time for receiving results from days to seconds, compared to time consuming laboratory analysis. Materials recovered by mining, minerals or other geological materials that originate from the earth consist of all kinds of base metals - precious metals, iron, uranium, coal, diamonds, limestone, oil shale, rock salt and potash - all of which can be efficiently analyzed by Xenemetrix outstanding ED-XRF analyzers.

    By Xenemetrix Ltd. based in Migdal Haemek, ISRAEL.

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    Pollutant Decontamination for the Wastewater Treatment Industry

    All described properties of Fe(0) nanoparticles can be even used for decomposition of pollutants contained in the waste water, mainly for treatment of industrial sewage and hutch water. The usage of nanoiron can represent a significant qualitative step in the classical technologies of water treatment including drinking water. The extremely reactive iron nanoparticles thus offer a possibility to solve long-lasting problems with a high content of uranium and arsenic in a variety of localities in the Central Europe. They can be also used for a reduction of the content of heavy metals, nitrates and phosphates in the drinking water. Just these inorganic pollutants, which are hardly or expensively removed by standard technologies, are effectively removed by Fe(0) nanoparticles.

    By NANO IRON s.r.o. based in Rajhrad, CZECH REPUBLIC.

  • Solutions for recovering metals

    The mining industry relies on Calgon Carbon’s Granular Activated Carbon (GAC) to recover gold and other precious metals. Calgon Carbon’s ISEP® Technology is used to recover precious, rare earth and base metals, uranium, copper, nickel and zinc from ore, waste and reclaim streams. Our high-quality activated carbons have been developed and successfully proven to maximize efficiency by reducing the loss of precious metals and the consumption of carbon in three precious metal extraction techniques: Carbon-in-Leach (CIL), Carbon-in-Pulp (CIP) and Carbon-in-Column (CIC). When Ion Exchange is employed for metal recovery in leach and waste streams, Calgon Carbon’s ISEP ® system provides a continuous, consistent and high purity concentrated product while minimizing the use of chemicals, resin and wastes. Calgon Carbon’s continuous ion exchange systems are the most flexible, robust, and accepted in the industry.

    By Calgon Carbon Corporation based in Moon Township, PENNSYLVANIA (USA).

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