To Secure Kazakhstan's Uranium, Chinese Players Were Compelled to Accommodate Local Partners Kazakhstan has leveraged its natural uranium resources …
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To confirm the possibility of processing the enrichment tailings by the enrichment–hydrometallurgical method, a representative sample of the tailings of the Belousovskaya Enrichment Plant (Republic …
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Long-term uranium mobility in tailings is an environmental management issue. The present study focuses on two U-enriched layers, surficial and buried 14.5 m, of the tailings pile of Cominak, Niger. The acidic and oxidizing conditions of the tailings pile combined with evapotranspiration cycles related to the Sahelian climate control U …
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On this basis, the Working Group agreed to work towards the development of its workplan for 2023, with concrete actions to strengthen mine tailings safety and …
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tailings could comprise potential resources for the REE in addition to the REE from the mined kaolin. This paper focused on describing the mineralogic and geochemical processes leading to the occurrences of the REE from mined kaolins together with the REE from mine tailings and sands of the overlying stra-tigraphy to the mined kaolins.
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At nearly every metal mine site, some form of mineral processing occurs, and tailings are being produced. In metal mining, the extracted oreore mineral ore –, minerals mineral –, ore...
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This study, carried out in tailings from two sediment-hosted stratiform copper deposits in the Lublin-Głogów Copper District in Poland (Kupferschiefer-type deposit) and Zhezkazgan (cupriferous sandstone …
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The rare earth distribution patterns of ground water around the tailings pond were enriched in LREEs and different extents of anomaly (from negative to positive) were observed for Ce and Eu in the ...
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However, this process involves minimal surface disturbance and produces neither tailings nor waste rock. In the case of Kazakhstan's Uranium production, Sulfuric acid is used within the ISL method. …
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Kazakhstan, the world's top uranium producer, has signed a long-term deal to supply the material to China, as the Central Asian country steps up cooperation with …
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(Kazakhstan only Party in Central Asia) Designed to protect people and the environment against industrial accidents by preventing, preparing for and responding to accidents ... from tailings management facilities, including those with potential cross-border effects.
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Kazakhstan is the world's largest producer of uranium in 2023, with output down by 5.13% on 2022.
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The Global Tailings Review convened by the United Nations Environment Programme (UNEP), the Principles for Responsible Investment (PRI) and the International Council on Mining and Metals (ICMM) launched the Global Industry Standard on Tailings Management. The Standard was developed by a multi-disciplinary Expert Panel, with …
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51% owned by Orano, KATCO operates the world's largest ISR uranium mine at the Muyunkum and Tortkuduk sites in Kazakhstan.
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At that time, the plant increased its production and shipped low-enriched uranium to Kazakhstan and Russia. [7] ... [11] Margarita Sevcik, "Uranium Tailings in Kyrgyzstan: Catalyst for Cooperation and Confidence Building?" The Nonproliferation Review, 10, no. 1, Spring 2003.
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Results of studying acid-resistant materials obtained from unenriched kaolin clay, chamotte fired from this clay at 1200°C, and sludge tailings of chromite ore enrichment fired at 800°C are presented. Studies show that it is impossible to obtain acid-resistant tiles from non-enriched kaolin clay without thinners that meet the technical …
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Seepage from oil sands tailings ponds (OSTP), which contain toxic naphthenic acids (NAs), can infiltrate into groundwater. ... Microbial consortia enriched from clay sediments displayed higher capability in consuming both labile organic matters and recalcitrant NAs than those enriched from sand sediments. The biodegradability of …
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The work of the Group is an important development for Kazakhstan in achieving better cooperation and collaboration among industrial safety, water and other experts in Kazakhstan, including with operators, academia, and NGOs to prevent accidental water pollution from mine tailings and their transboundary effects.
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The 14 th International Astana Mining & Metallurgy Congress took place in Astana on 6-7 June. The Era of Metals – Challenges and Solutions was the main theme …
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[Show full abstract] tolerance of an autotrophic SCN⁻-degrading bacterial consortium enriched from gold mine tailings for Zn, Cu, Ni, Cr, and As. All of the selected metals inhibited SCN ...
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Mayluu-Suu, the site of greatest concern in Kyrgyzstan, has multiple tailings impoundments that are threatened by landslides, which could either push impoundments into the adjacent river or form dams and submerge them. The Ulba Metallurgical Plant in Kazakhstan is one of the oldest plants supporting the nuclear cycle.
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Mine tailings, consisting of process effluents that are generated in a mineral processing plant, are generally transferred to tailings ponds/impoundments to meet environmental regulations and site-specific factors before discharge.
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Ethylthionocarbamates (ETC), which is the most widely used as collectors in the flotation of sulfide, is known to cause serious pollution to soil and groundwater. The potential biodegradation of ETC was evaluated by applying a mixed culture of iron-reducing bacteria (IRB) enriched from tailings dam sediments. The results showed that ETC can …
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Tailings management is typically easier, at least physically, in dry climates, where advantage can be taken of desiccation (that is, drying by exposure to the wind and sun) to naturally dewater, increase the density of the tailings and strengthen the tailings.
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Mayluu-Suu, the site of greatest concern in Kyrgyzstan, has multiple tailings impoundments that are threatened by landslides, which could either push impoundments into the …
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Some project activities were implemented back-to-back with the UNECE pilot project to strengthen the safety of mining/tailings safety in Kazakhstan, to take advantage of …
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The work of the Group is an important development for Kazakhstan in achieving better cooperation and collaboration among industrial safety, water and other experts in Kazakhstan, including with operators, academia, and NGOs to prevent …
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In this paper, the geological conditions of accumulation and the material composition of the ore tailings from the processing plants of Kazakhstan were studied.
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tailings from Kazakhstan (in sandstones and quartz grains), and mainly in coarse fractions in Poland (within carbonates, sandstones, and black shales). Mineralogical and geochemical features should be
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The implementation of the Project will support Kazakhstan in implementing the recommendations arising from the Environmental Performance Review (EPR) for Kazakhstan, in particular to develop a programme for the management of existing mining tailings (recommendation 9.4, 1st EPR, 2000, and 2nd EPR, 2008).
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Kazakhstan, until recently, in the production of copper was among the top ten countries in the world. However, as the reserves of traditional ores are exhausted, the volume of copper produced has noticeably decreased. Currently, one of …
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The tailings after mining have become the largest source of pollution aecting the mine environment (Feng et al. 2010; Wang et al. 2018). Piles of ... are enriched in the root system and inhibit its mitosis, caus-ing chromatin dysfunction caused by metal-DNA interac-tions, along with a dramatic increase in chromosomal and ...
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