uranium Articles

  • Uranium in Groundwater - Case Study

    Customer: Mew Mexico – Espanola Valley Water Clinic Application: Metals analysis in ground water Description: Groundwater samples were submitted by well owners from different regions of New Mexico (around Espanola region) at a water clinic sponsored by the Good Water Company (Testing Service). ...


    By ANDalyze, Inc.

  • A review of uranium economics

    The recent increase in the demand for power for commercial use, the challenges facing fossil fuel use and the prospective of cheap nuclear power motivate different countries to plan for the use of nuclear power. This paper reviews many aspects of uranium economics, which includes the advantages and disadvantages of nuclear power, comparisons with other sources of power, nuclear power production ...


    By Inderscience Publishers

  • How the uranium enrichment SC

    Part of a presentation and case study on the concept of the Electro Chemical Plant (ECP), Zelenogorsk, Krasnoyarsk territory for environmental monitoring and emergency response in exchange with the local, regional and central authorities, which serves as a role model for similar applications. Based on the concept the plant won the trophy as the "Best Fuel Company Enterprise for Civil Protection" ...


    By Bertin Instruments

  • Depleted uranium technical brief

    Depleted uranium (DU) is a byproduct of the process used to enrich natural uranium for use in nuclear reactors and in nuclear weapons. Natural uranium is composed of three isotopes; 234U, 235U, and 238U (see Table 1) [1]. The enrichment process concentrates both the 235U and the 234U isotopes in the product material, resulting in a waste product or byproduct depleted in both 235U and 234U. The ...

  • Uranium city culvert headwall, Uranium City, Sask., Canada - Case Study

    In the province of Saskatchewan, Canada, Highway 962 services the remote northern community of Uranium City. Uranium City is located in the extreme northwestern cor-ner of Saskatchewan, north of Lake Athabasca, 30 mi. (48.3 km) south of the border of the Northwest Territories. The city was developed and named as a result of a significant uranium deposit that was first explored in 1946. At one ...


    By Presto Geosystems

  • Exploring ecotoxicological fish bioassay for the evaluation of uranium reprotoxicity

    Although reproduction in fish is known to be sensitive to metal exposure, few ecotoxicological studies have focused on the toxicological effects of metals on reproduction in fish. Because uranium (U) is naturally present in aquatic ecosystems (0.6–2 mg/L), freshwater organisms are subjected to chronic U exposure. Although new standardised assays are currently being developed to mimic realistic ...


    By John Wiley & Sons, Ltd.

  • Polyphosphates for in situ uranium immobilization - Case Study

    INFORMATION Carus Corporation has a long history of developing and providing a variety of permanganate products for chemical oxidation applications. Carus is also a leading provider of phosphate products for sequestration and corrosion control. Phosphates are widely used as water treatment chemicals (dry or liquid solutions) to correct problems resulting from inorganic groundwater ...


    By Carus Corporation

  • Determination of uranium concentration in surface soil samples of Iran

    The use of uranium-tipped antitank shells during the Iraq war (2003) caused serious concerns in Iran and the international media over possible contamination of the Iranian environment and consequent long-term health effects. After a shell explosion, uranium is discharged by fire into the air in the form of oxidised particles, which can be dispersed over a radius of several kilometres. Gamma ray ...


    By Inderscience Publishers

  • ANDalyze Case Study - Uranium in Ground Water

    Good Water Company (Testing Service) Groundwater samples were submitted by well owners from different regions of New Mexico (around Espanola region) in a water clinic sponsored by the Good Water Company. Problem/Task The groundwater in this region is contaminated with natural uranium, often above the EPA maximum contaminant level of 30 ppb uranium. ...


    By ANDalyze, Inc.

  • Biokinetic modeling of uranium in man after injection and ingestion

    Uranium is a naturally occurring primordial radioactive element. Small amounts found in air, water, and food are regularly consumed and inhaled by humans. Even the military, medical, and industrial use of depleted uranium can affect humans. There is an appreciable retention of incorporated uranium in skeleton, kidneys, and liver, and a review of respective effective dose coefficients has been ...


    By Springer

  • Effect of sulfate on the simultaneous bioreduction of iron and uranium

    The biogeochemistry related to iron- and sulfate-reducing conditions influences the fate of contaminants such as petroleum hydrocarbons, trace metals, and radionuclides (i.e., uranium) released into the subsurface. An understanding of these processes is imperative to successfully predict the fate of contaminants during bioremediation scenarios. A series of flow-through sediment column experiments ...

  • Uranium mining and milling: material security and risk assessment

    At present, physical protection for the front end of the nuclear fuel cycle is typically at a significantly lower level than at any other part of the nuclear fuel cycle. However, in view of past experiences it is feasible to take into consideration some generic threat scenarios, potentially resulting in loss of control over the nuclear material, respectively its by-products, such as: illegal ...


    By Inderscience Publishers

  • Recovery of uranium and vanadium from brine streams and oceans

    Research and technological developments are being pursued vigorously all over the globe to reduce the cost of desalinated water. One approach can be to retrofit 'value addition' by the recovery of uranium and vanadium from reject brine streams. Bench-scale field trials that have been carried out are presented in this paper. Coupling 'uranium recovery' with desalination plants for partly ...


    By Inderscience Publishers

  • Key lake uranium processing facility - Case study

    Project: Key Lake Location: Saskatchewan, Canada Owner: Cameco Engineer: Wardrop Engineering Applicator: Tron Construction Sauereisen Representative: Solhydroc, Inc. Products: No. 228 - ConoGlaze Epoxy NovolaK No. 89 - High Temperature ...


    By Sauereisen Inc.

  • Uranium biosorption from aqueous solution by the submerged aquatic plant Hydrilla verticillata

    The biosorption characteristics of U(VI) from aqueous solution onto a nonliving aquatic macrophyte, Hydrilla verticillata (dry powder), were investigated under various experimental conditions by using batch methods. Results showed that the adsorption reached equilibrium within 60 min and the experimental data were well fitted by the pseudo-first-order kinetic model. U(VI) adsorption was ...


    By IWA Publishing

  • Why does India require uranium through the 123 Agreement?

    The government of India has taken a deliberate stand that nuclear power should be one of the components of the energy mix that the country should have for sustained economic growth. A base for this was laid in the 1960s to 1970s in collaboration with USA and Canada. However, a major part of the development, in recent decades, has been indigenous. This came about after international sanctions were ...


    By Inderscience Publishers

  • Uranium removal by chitosan impregnated with magnetite nanoparticles: adsorption and desorption

    A magnetic biosorbent composed of nanoparticles of magnetite covered with chitosan, denominated magnetic chitosan, was prepared. The magnetic chitosan showed a magnetic response of intense attraction in the presence of a magnetic field without becoming magnet, a typical behaviour of superparamagnetic material. Its adsorption performance was evaluated by the adsorption isotherm models of Langmuir ...


    By Inderscience Publishers

  • Using k0-UNAA for the determination of depleted uranium in the moss biomonitoring technique

    The use of ammunition containing depleted uranium (DU) in several military actions is of growing health concern to the population related to the risk arising from contamination of the environment with DU penetrators and dust. Environmental monitoring of uranium and its isotopic ratios therefore become important parameters since they allow for source identification. Neutron activation analysis ...


    By Inderscience Publishers

  • Project profile - uranium treatment system Middletown Springs Elementary School Vermont

    Background The Middletown Springs Elementary School in Vermont is located in an area of the U.S. very susceptible to the formation of naturally-occurring uranium. Due to the high levels of uranium detected in the well water serving the School, it was placed on a “Do-not-Drink Advisory”. AdEdge was contacted by Otter Creek Engineering in June 2009 to assist the School in ...

  • Challenges in the design of a prototype contactor assembly for the recovery of uranium from seawater

    The total estimated quantity of uranium in oceans is around four and a half billion tonnes. Harvesting uranium from seawater is much less taxing to the environment. Thus, when uranium is harvested from seawater with near-zero environmental burdens, it will become a totally green fuel in the hands of humankind, as uranium generates primary calories without giving CO2 emissions and leaves no mill ...


    By Inderscience Publishers

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