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This study investigates copper ore tailings deposited in Repparfjorden, Norway in the 1970's. Bathymetric show that the tailings deposit still occurs as a series …
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An investigation of concentrations of copper, cobalt and cadmium minerals in soils and mango fruits growing on Konkola copper mine tailings dam in Chingola, …
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Researchers at Arizona's three universities will explore ways to repurpose billions of tons of copper mine tailings under a $3.6 million grant approved by the Arizona Board of Regents.
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In 2018, the global tailings production from copper mining reached 3.44 billion metric tons, up from 3.34 billion metric tons in 2016.
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Within copper mining and extraction, the resulting tailings usually account for a high proportion (up to 99%) of the mined ore (IIED, 2002). Submarine tailing disposal is considered to be a viable option as the tailings are not visible on land, may be more stable on the ocean floor and are less likely to oxidize in the submarine environment.
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For example, the energy intensity of copper mining in Chile increased from 540 MJ of electricity and 3,804 MJ of fuel per tonne of copper in ore in 2001, to 764 MJ of electricity and 8,778 MJ of ...
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Driven by mining volumes, globally generated tailings are estimated to total up to 3.2 billion tons for copper and up to 1.8 billion tons for iron per year. Water conservation and the cost of ...
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There is a broad range of TENORM concentrations in copper mining wastes. Mining and extraction of copper by surface or underground methods can concentrate and expose radionuclides in the waste rock and tailings tailingsThe remaining portion of a metal-bearing ore after some or all of a metal, such as uranium, has been …
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Waste management issue in mining industry has become increasingly important. In this regard, construction of tailings dams plays a major role. Most of the …
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There is a need to define mine tailings in a clear, precise, multidisciplinary, transdisciplinary, and holistic manner, considering not only geotechnical and hydraulic concepts but also integrating environmental and geochemical aspects with implications for the sustainability of mining. This article corresponds to an independent study that …
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In 2022, her company Nibeenabe piloted its device for remediation and attenuation of multiple pollutants (DRAM) technology to filter the tailings from a Madre …
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Copper mining generates large quantities of waste, tailings, and acid outflows causing long-term environmental impacts and potential threats to human …
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In copper mining, tailings can account for 95–99% of crushed and ground ores (Edraki et al., 2014). Worldwide, mine tailings are produced at a rate of anywhere from five to fourteen billion tons per year (Adiansyah et al., 2015; Edraki et al., 2014; berger, 2016).
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Copper mining and refining generate a huge quantity of copper tailings and slags. The total copper slag produced between 1999 – 2019 is estimated to be 752 million tons ( ICMM, 2019 ; Phiri et al., 2022 ).
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Ore material Water The milling process requires. of4 188 million 5 300 million. water (some of the water is reused in thetonnes tonnes milling process).End result: 20,1 million …
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Increasing population levels, growing economies, rapid urbanization and changes in consumption patterns have increased the demand for raw materials such as …
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"Mining companies and government need to do a better job of consulting with communities. We need solid plans and financing for mine closures in place from the beginning of mining operations, so that when the mine dries up, there's the money needed to secure tailings dams and protect the communities who will be there forever," Odell …
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To narrow this knowledge gap, we implemented a phytostabilization project in an acidic copper mine tailings pond and employed metagenomics to explore ARG characteristics in the soil samples. Our results showed that phytostabilization decreased the total ARG abundance in 0–10 cm soil layer by 75 %, which was companied by a …
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Copper is one of the most important base metals and is widely used in industry. In the Earth's crust, copper is most often present in the form of copper–iron-sulfide and copper sulfide, such as the minerals chalcopyrite (CuFeS 2) and chalcocite (Cu 2 S). About 80% of copper ore originates from Cu-Fe-S minerals, primarily chalcopyrite as the most …
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The technical and socio-political causes of mine Tailings Storage Facilities (TSF) disasters are examined. ... The Ok Tedi is an open pit copper and gold mine in Papua New Guinea (PNG) developed from the early1980s by a consortium headed by the Australian firm, BHP Billiton. It cost about US$1.4 billion to develop the mine which sits …
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As copper tailings appear in ground form, the grading of copper tailings reported by Gupta and Thomas (2013) and Nitish et al. (2013) has a sizeable silt fraction of 0.06–0.002 mm. Copper tailings are considered to be finer than CS, which usually has a dominant sand …
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Mine tailings, the byproduct of mining and mineral processing, are increasingly mass produced as a result of increased demand for metals and minerals as well as the advancement in technology that allows for the exploitation of lower-grade ores. Lower grades can increase the volume of tailings that may contain new gangue …
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An investigation of concentrations of copper, cobalt and cadmium minerals in soils and mango fruits growing on Konkola copper mine tailings dam in Chingola, Zambia. Arch. Sci. 1, 2–5 (2017).
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E&MJ explores new ways of managing mine tailings ... The first project involves testing the application of a large-volume filtration unit at a BHP copper mine in Chile which will remove up to 80% of the water in the tailings stream before it's deposited in a TSF. When the partnership was announced, manufacture of the filter unit was underway ...
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Mineral tailings from two copper mines were bioleached under different conditions. • Greatest copper extraction was achieved at extremely low pH, at 45 °C and under oxidative/reductive conditions.. Copper present in tailings PLS was selectively precipitated as CuS by biogenic H 2 S.. Microbial communities were dominated by Sb. …
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2.1 Study area description and sample collection. The copper-nickel mine tailings pond was built in 1999 and is located in northern Xinjiang Province and in the eastern part of Fuyun County ().The design level of the pond capacity is grade Ⅴ and the floor area is about 1.5 × 10 5 m 2.The slag waste is disposed of by the traditional wet …
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Future copper needs and hence, mining activities will determine the future availability of copper tailings and reprocessing potential. Three scenarios for 2050 are explored based on projected, prospective dynamic material flow analysis linked with resource scenarios of the previous studies by Ciacci et al. (2020) and Elshkaki et al. …
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Copper mining generates large quantities of waste, tailings, and acid outflows causing long-term environmental impacts and potential threats to human health. Valea Şesei is the largest tailing impoundment in Romania, created by flooding the valley (known as Valea Şesei) of the Metalliferous Mountains (a division of the Apuseni …
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The large tailings piles of the Central Mine are visible from US 41 in Central, Michigan. Many collectors have had good luck recently working this location. Occasionally, contractors remove large quantities of tailings for construction purposes and this exposes fresh material. ... During the period of most intense copper mining in …
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A new Atlas of Australian Mine Waste aims to provide industry with opportunities to extract critical metals from previously mined rock. ... cobalt in the tailings of old copper mines." ...
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