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Relevant bibliographies by topics / Uranium mining. eng

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Academic literature on the topic 'Uranium mining. eng'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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Journal articles on the topic "Uranium mining. eng"

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Zhang, Chong, Kaixuan Tan, Tingting Xie, et al. "Flow Microbalance Simulation of Pumping and Injection Unit in In Situ Leaching Uranium Mining Area." Processes 9, no. 8 (2021): 1288. http://dx.doi.org/10.3390/pr9081288.

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In situ leaching (ISL) uranium mining technology is an in situ mining technology in which the chemical solution is injected into the ore-bearing strata through drilling wells, and the solution moves along the ore bed by controlling the hydraulic gradient of the flow field and reacts with the ore to form uranium-bearing solution. To reduce leaching dead angle in the process of leaching, each pumping and injection unit should achieve uniform leaching at the end of production, and appropriate pumping and injection mode should be adopted for pumping and injection wells of each unit in the mining a

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Aliev, S. B., and Omarbekov Ye.U. "Influence of the "pumping wells" technology on the indicators of in situ leaching of uranium." Kompleksnoe Ispolʹzovanie Mineralʹnogo syrʹâ/Complex Use of Mineral Resources/Mineraldik Shikisattardy Keshendi Paidalanu 317, no. 2 (2021): 30–36. http://dx.doi.org/10.31643/2021/6445.15.

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This paper presents the results of experimental research applications "pumping wells" when the mining of uranium deposits by the method of In-Situ Leach Mining ISL in mine "Karatau". Analyzed the experience results of uranium deposits development in the conditions of high-pressure nature of groundwater. The experimental works have been conducted using proposed “pumping wells” technology. The implementation of the proposed "pumping well" technology did not affect the Me and pH values in comparison with the actual technology, but it did reduce the production cost. It is proved that by using the

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Sarkar, Atanu. "Environmental Impact Assessment of Uranium Mining on Indigenous Land in Labrador (Canada): Biases and Manipulations." Environmental Justice 12, no. 2 (2019): 61–68. http://dx.doi.org/10.1089/env.2018.0036.

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van Veelen, A., R. Copping, G. T. W. Law, et al. "Uranium uptake onto Magnox sludge minerals studied using EXAFS." Mineralogical Magazine 76, no. 8 (2012): 3095–104. http://dx.doi.org/10.1180/minmag.2012.076.8.24.

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AbstractAround the world large quantities of sludge wastes derived from nuclear energy production are currently kept in storage facilities. In the UK, the British government has marked sludge removal as a top priority as these facilities are nearing the end of their operational lifetimes. Therefore chemical understanding of uranium uptake in Mg-rich sludge is critical for successful remediation strategies. Previous studies have explored uranium uptake by the calcium carbonate minerals, calcite and aragonite, under conditions applicable to both natural and anthropogenically perturbed systems. H

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Parnell, John, and Paul Eakin. "The replacement of sandstones by uraniferous hydrocarbons: significance for petroleum migration." Mineralogical Magazine 51, no. 362 (1987): 505–15. http://dx.doi.org/10.1180/minmag.1987.051.362.05.

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AbstractHydrocarbons (bitumens sensu lato) in sandstones have been recorded in several instances to have partially replaced their host rock, including quartz grains. Many replacive hydrocarbons are uranium-rich: associated non-uraniferous hydrocarbons are not replacive. Uranium is transported as carbonate complexes, which may be decomposed by organic acids to yield UO22+ ions and CO2. The UO22+ will be absorbed onto hydrocarbons before reduction to a mineral phase, generally uraninite; and the CO2 may be aggressive towards the silicate grains of the host sandstone. Accretionary nodules of repl

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Czarwinski, R., R. Lehmann, and W. Röhnsch (INVITED). "Radon in Eastern German Houses - Surveys and Outcomes." Radiation Protection Dosimetry 56, no. 1-4 (1994): 281–86. http://dx.doi.org/10.1093/oxfordjournals.rpd.a082471.

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Abstract Comprehensive systematic investigations of the problem of radon in Eastern German houses have been launched by the Federal Office for Radiation Protection after German unification. Results obtained so far show the dominant contribution of the ground below to enhanced radon concentrations in buildings. Granitic formations near the surface give rise to extended high median values of the frequency distribution. Extremely high concentrations are observed in ore mining regions where direct connections exist between buildings and mining relics in the ground, e.g. uranium bearing waste rock

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Munksgaard, Niels C., Jennifer A. Brazier, Cristy M. Moir, and David L. Parry. "The Use of Lead Isotopes in Monitoring Environmental Impacts of Uranium and Lead Mining in Northern Australia." Australian Journal of Chemistry 56, no. 3 (2003): 233. http://dx.doi.org/10.1071/ch02239.

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Lead isotope ratios, determined by inductively coupled plasma quadropole mass spectrometry (ICPMS), have been used to assess environmental impacts from uranium and lead mining in northern Australia. The lead isotope composition of most environmental samples contained evidence of mixing of two or more end-member components; their characteristic lead isotope ratios allowed lead sources to be unambiguously identified. The isotopic characteristics and sources identified include highly radiogenic lead (low 207Pb/206Pb and 208Pb/206Pb ratios) in sediments from the Finniss River derived from the form

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LI, YONGMEI, WANYU TAN, KAIXUAN TAN, ZEHUA LIU, and YANSHI XIE. "FRACTAL AND CHAOS ANALYSIS FOR DYNAMICS OF RADON EXHALATION FROM URANIUM MILL TAILINGS." Fractals 24, no. 03 (2016): 1650029. http://dx.doi.org/10.1142/s0218348x16500298.

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Tailings from mining and milling of uranium ores potentially are large volumes of low-level radioactive materials. A typical environmental problem associated with uranium tailings is radon exhalation, which can significantly pose risks to environment and human health. In order to reduce these risks, it is essential to study the dynamical nature and underlying mechanism of radon exhalation from uranium mill tailings. This motivates the conduction of this study, which is based on the fractal and chaotic methods (e.g. calculating the Hurst exponent, Lyapunov exponent and correlation dimension) an

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Sitte, Jana, Denise M. Akob, Christian Kaufmann, et al. "Microbial Links between Sulfate Reduction and Metal Retention in Uranium- and Heavy Metal-Contaminated Soil." Applied and Environmental Microbiology 76, no. 10 (2010): 3143–52. http://dx.doi.org/10.1128/aem.00051-10.

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ABSTRACT Sulfate-reducing bacteria (SRB) can affect metal mobility either directly by reductive transformation of metal ions, e.g., uranium, into their insoluble forms or indirectly by formation of metal sulfides. This study evaluated in situ and biostimulated activity of SRB in groundwater-influenced soils from a creek bank contaminated with heavy metals and radionuclides within the former uranium mining district of Ronneburg, Germany. In situ activity of SRB, measured by the 35SO4 2− radiotracer method, was restricted to reduced soil horizons with rates of ≤142 ± 20 nmol cm−3 day−1. Concentr

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Kuzmin, E. V., A. V. Kalakutskiy, M. A. Tarasov, and A. A. Morozov. "Justification for Possibility to Dispose of Class 2 and 3 Radioactive Waste in Underground Space of Uranium Mines." Mining Industry (Gornay Promishlennost), no. 5/2020 (October 20, 2020): 32–37. http://dx.doi.org/10.30686/1609-9192-2020-5-32-37.

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Intensive development of the nuclear power generation industry creates the issue of radioactive waste disposal (RAW), which has a negative impact on the environment. Development of uranium deposits using underground mines produces openings, e.g. workings and stopes that can be used as reservoirs for RAW storage. This requires a geomechanical assessment of the condition of mine workings and stopes, evaluation of their total volume, compliance with the requirements for the nuclear waste disposal sites, necessary preparation, as well as evaluation of the limits of existing mining technologies and

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Dissertations / Theses on the topic "Uranium mining. eng"

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Barros, Daniel Figueira de. "A Indústria de urânio : um estudo comparativo da evolução da legislação internacional e brasileira /." Rio Claro, 2008. http://hdl.handle.net/11449/92896.

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Orientador: Daniel Marcos Bonotto<br>Banca: Jorge Luis Mialhe<br>Banca: Nelson Angeli<br>Resumo: Este trabalho mostra eventos que influenciaram a indústria mundial do urânio tomando como países selecionados a Alemanha, a Austrália, o Canadá, os Estados Unidos da América, a França e o Brasil. Os eventos destacados para cada país são: a implantação das agências reguladoras ao longo dos anos; a evolução das políticas de proteção do público e do meio ambiente contra os possíveis danos da radiação ionizante. Um levantamento histórico desses fatos foi realizado e é organizado em ordem cronológica, d

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Books on the topic "Uranium mining. eng"

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Environmental Activities in Uranium Mining and Milling. OECD, 1999. http://dx.doi.org/10.1787/9789264173743-en.

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Managing Environmental and Health Impacts of Uranium Mining. OECD Publishing, 2014. http://dx.doi.org/10.1787/9789264216044-en.

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Book chapters on the topic "Uranium mining. eng"

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Voitsekhovitch, O., Y. Soroka, and T. Lavrova. "Uranium mining and ore processing in Ukraine – radioecological effects on the Dnipro River water ecosystem and human health." In Radionuclides in the Environment - Int. Conf. On Isotopes in Env. Studies. Elsevier, 2006. http://dx.doi.org/10.1016/s1569-4860(05)08014-9.

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Conference papers on the topic "Uranium mining. eng"

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Voitsekhovich, O., T. Lavrora, A. S. Skalskiy, and V. F. Ryazantsev. "The Strategy on Rehabilitation of the Former Uranium Facilities at the “Pridneprovsky Chemical Plant” in Ukraine." In The 11th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2007. http://dx.doi.org/10.1115/icem2007-7196.

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This paper describes current status of the former Uranium Facilities at the Pridneprovsky Chemical Plant in Ukraine, which are currently under development of action plan for its territory rehabilitation. The monitoring data carried out during recent several years show its impact to the Environment and gives a basis for justification of the number of measures aiming to reduce radiological and ecological risks of the Uranium tailings situated at the territory of PChP. The monitoring data and strategy for its remediation are considered in the presentation. Uranium mining has been intensively cond

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Brown, S. H. "Design Improvements and ALARA at U.S. Uranium In Situ Recovery Facilities." In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16415.

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In the last few years, there has been a significant increase in the demand for Uranium as historical inventories have been consumed and new reactor orders are being placed. Numerous mineralized properties around the world are being evaluated for Uranium recovery and new mining / milling projects are being evaluated and developed. Ore bodies which are considered uneconomical to mine by conventional methods such as tunneling or open pits, can be candidates for non-conventional recovery techniques, involving considerably less capital expenditure. Technologies such as Uranium In Situ Leaching / In

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Carvalho, F. P., J. M. Oliveira, O. Neves, M. M. Abreu, and E. M. Vicente. "Agriculture in an Area Impacted by Past Uranium Mining Activities." In The 11th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2007. http://dx.doi.org/10.1115/icem2007-7370.

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The shallow aquifer near the old Cunha Baixa uranium mine (Viseu, Portugal) was contaminated by acid mine drainage. Concentration of radionuclides in water from irrigation wells and in the topsoil layer of the agriculture fields nearby display enhanced concentrations of uranium, radium and polonium. Two types of agriculture land in this area were selected, one with enhanced and another with low uranium concentrations, for controlled growth of lettuce and potatoes. Plants were grown in replicate portions of land (two plots) in each soil type and were periodically irrigated with water from wells

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Kelly, M., and D. Holton. "Impact Assessment of Uranium Exploration Liabilities in Albania." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4875.

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Former uranium mining and milling activities in Central and Eastern Europe have resulted in a number of environmental and radiological hazards to the local populations of these countries. Depending on the nature of the activities undertaken, the results can range from a small number of large liabilities (e.g. tailings heaps, ponds, etc) through to a large number of much smaller liabilities (e.g. exploration adits, contaminated rubble, etc). Where a small number of liabilities exist (e.g. Slovakia [1]), a detailed dose assessment is appropriate, from which decisions about the need (or otherwise

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Ross, Malcolm K., and Don Hovdebo. "Environmental Assessment Perspective of Decommissioning and Long-Term Management of Uranium Mine Tailings in Saskatchewan, Canada." In ASME 2001 8th International Conference on Radioactive Waste Management and Environmental Remediation. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/icem2001-1256.

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Abstract Uranium was initially mined in Canada as a strategic mineral, primarily for export to the United States. Currently, uranium is produced for the global energy market and Saskatchewan is the sole producing province in Canada. Uranium development in Saskatchewan dates from 1953 and in 2000 accounted for 31% of global mine production. In the 1990’s the Saskatchewan Government Environmental Assessment Branch reviewed a new generation of uranium mines with large reserves and extremely high average grades. Technically, the development of these mines has required the development of innovative

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Waggitt, Peter, and Mike Fawcett. "Completion of the South Alligator Valley Remediation: Northern Territory, Australia." In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16198.

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13 uranium mines operated in the South Alligator Valley of Australia’s Northern Territory between 1953 and 1963. At the end of operations the mines, and associated infrastructure, were simply abandoned. As this activity preceded environmental legislation by about 15 years there was neither any obligation, nor attempt, at remediation. In the 1980s it was decided that the whole area should become an extension of the adjacent World Heritage, Kakadu National Park. As a result the Commonwealth Government made an inventory of the abandoned mines and associated facilities in 1986. This established th

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Geddes, Brian, Chris Wenzel, Michael Owen, Mark Gardiner, and Julie Brown. "Remediation of Canada’s Historic Haul Route for Radium and Uranium Ores: The Northern Transportation Route." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59303.

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Established in the 1930s, the Northern Transportation Route (NTR) served to transport pitchblende ore 2,200 km from the Port Radium Mine in Canada’s Northwest Territories to Fort McMurray in Alberta. From there, the ore was shipped 3,000 km by rail to the Town of Port Hope, Ontario, where it was refined for its radium content and used for medical purposes. Later, transport and refinement focussed on uranium. The corridor of lakes, rivers, portages and roads that made up the NTR included a number of transfer points, where ore was unloaded and transferred to other barges or trucks. Ore was occas

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Beceiro, Alvaro R., Elena Vico, and Emilio G. Neri. "The Radioactive Waste Management Programme in Spain." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4898.

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The paper will start with an overview of the organisational and financing framework established in Spain for the safe and efficient management of radioactive waste and decommissioning of nuclear installations. Since its creation by Royal Decree in 1984, ENRESA, the Spanish Radioactive Waste Management Agency, is in charge of both activities. ENRESA is a state owned company whose shareholders are CIEMAT (Centro de Investigaciones Energe´ticas, Medioambientales y Tecnolo´gicas) and the State Industrial Holding (SEPI), both governmental institutions. In Spain the Directorate General for Energy Po

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Jakubick, Alexander T., and Manfred Hagen. "Environmental Risk and Costs/Benefits of the WISMUT Remediation." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4982.

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The Uranium mining and milling activities in Eastern Germany before reunification produced more than 232 000 t of U. Following reunification, £ 6.6 billion were committed to remediation of the left behind liabilities. The inventory of the liabilities comprises operations areas (37 km2), waste rock dumps (311 M m3), tailings (160 M m3), an open pit (84 M m3) and five large underground mines (1.53 M m3). The specific activities are 0.5 to 1 Bq/g for the waste rock, 10 Bq/g for the tailings, up to 500 Bq/g for the water treatment residues and 0.2 to 1 Bq/g for scrap metal. The remediation of the

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