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2.1. Life cycle assessment: Goal and scope. The goal of this study is (1) to evaluate the environmental benefits and tradeoffs between the secondary resources potential and energy/materials needed to perform the resource-recovery systems and (2) to estimate the large-scale impacts of copper tailings reprocessing in the EU.
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A photograph of the Aguablanca nickel and copper mine tailings storage facility in Spain. Full size image. Papers Published in this Special Issue. ... One of the most generally required conditions for any mining operation is the "social licence." In this context, Ivan Carrasco (Spain) provided a paper on the Las Cruces copper mine in Spain. ...
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Ultrasound has been used to enhance flotation recovery of copper tailings. ... Schematic design of the Denver equipment and the flotation cell: (a) Outline of the Denver flotation equipment and the cell, side view; (b) Outline of the flotation cell, top view. ... more research is required to understand and properly control the applied pressure ...
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The geologic types, amounts, and even locations of copper mine tailings from Arizona's 100+ years of mining are only partially known, as is their critical metal content. ... This will reduce the number of samples needed to adequately represent the heterogeneity of tailings, which (if drilled and sampled by usual industry procedures) would run ...
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The leaching-mineralization cycle technology using NH 4 Cl as the leaching solution meets the requirements for CO 2 removal and alkaline industrial waste residue treatment, while avoiding the significant consumption of chemical reagents in traditional mineralization. This method provides a pathway for producing vaterite using copper …
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Filtration has also been adopted in operations where process flow sheet dictates its use. Davies (2011) noted that two most common reasons to select dry stacked filtered tailings have been to ...
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for high tailings facilities in the deep valleys of the Andes in South America. 2.1 NET PRESENT VALUE ACCOUNTING APPLIED TO TAILINGS MANAGEMENT There is a commonly held perception that transporting tailings as a slurry to a facility is the most economic approach. However, to a large extent this tailings dewatering, density and …
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Finally, the copper content is enriched using equipment such as flotation cells and multi-gravity separators, and then the tailings composition is redetermined. …
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To reduce the negative impact on the environment and use the secondary resource of copper mine tailings, this study provides an attractive method for recycling mine tailings into building materials and creating zero-emission tailings, which could be helpful for the production of construction bricks using green raw materials and industrial …
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Copper tailings have a high concentration of copper while other contents are within the normal concentration ranges in soil. However, concentrations of heavy metals in iron ore tailings, red mud, and manganese tailings are within the normal concentration ranges in soil. ... Time required for different restoration technologies. Physical ...
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To manage tailings sustainably, it's important to understand the processes and production from excavation to end-of-mine thoroughly as it allows to find the best solutions that meet both environmental and production requirements. Tailings Management Solutions combine practices of tailings dewatering, safe and sustainable …
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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 base and precious metals, leading to growing concerns regarding their availability and the global efficiency of the mine supply chain. Mine tailings, consisting of process effluents …
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Tailings dewatering – The high capacity filtration solutions enable up to 90% water recovery in tailings. IPS thickeners use up to 10% less chemicals, and due to their compact and efficient design reduce …
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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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Tailings vary considerably in their chemical and physical characteristics. These characteristics include: mineralogical and geochemical compositions; specific gravity of tailings particles; settling behaviour; permeability vs. density relationships; soil plasticity (i.e. Atterberg limits); consolidation behaviour; rheology/viscosity characteristics; …
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Plants must deal with harsh environmental conditions when colonizing abandoned copper mine tailings. We hypothesized that the presence of a native microbial community can improve the colonization of the pioneer plant, Baccharis linearis, in soils from copper mining tailings. ... (Baccharis linearis) is required for plant establishment …
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The copper grade is substantially higher compared to the average copper grade in tailings from the 1930s of 0.33% and far above the average of SERNAGEOMIN's cadaster of mine tailings (sampling only the first …
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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 tonnes of. opper At most mines, as ca. after milling into large tailings dams. which remain4 109 …
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1. Introduction. The annual output of copper tailings in Chengmenshan copper mine, Jiangxi Copper Co., Ltd is approximately 2.5 million tons [1].The fraction with a particle size larger than 38 μm can be utilized for concrete admixtures, siliceous materials in aerated concrete, glass-ceramics, and other building material products [2], …
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Modern society around the world is notably based on mined rock materials that provide metals such as iron and copper, building materials such as aggregate and cement, minerals for chemical-based products such as fertilizers, energy minerals such as uranium and coal, and more. ... Development of new excavation equipment to allow …
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1. Introduction. Due to the ever-growing demand for copper minerals, a significant amount of copper tailings have been produced as byproducts during the extraction of valuable copper minerals (Furnell et al., 2022; Rebello et al., 2021).According to the latest Global Tailings Review, approximately 14 billion tonnes of mineral tailings …
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Whether driven by regulatory compliances, tailings dam failure and water scarcity, mine tailings can well become a strong business case in the near future. Due to growing mining volumes, global tailings generation was estimated to total ~3.2 bn tons for copper and ~1.8 bn tons for iron in 2018.
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Reducing the amount of water in a milled tailings storage facility (TSF) is the primary way to reduce the risk of a catastrophic failure. In addition, a significant factor influencing the permitting and development of new mines, or the expansion of existing mines, is the limited availability of water in some mineral-rich countries, which has led to …
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The engineering characteristics of tailings are in most instances influenced by the degree of thickening and the method of deposition. It is therefore essential that while investigating the properties of tailings that the …
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Rapid economic development and increased demand for mineral products in China have led to extensive extraction of various ores, resulting in significant environmental challenges associated with the generation of industrial solid waste, particularly iron tailings. Despite being a major mining nation, China faces issues of wasteful practices, with …
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Mining is an important industry, accounting for 6.9% of global GDP. However, global development promotes accelerated demand, resulting in the accumulation of hazardous waste in land, sea, and air environments. It reached 7 billion tonnes of mine tailings generated yearly worldwide, and 19 billion solid tailings will be accumulated by …
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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 …
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tailings are commonly transported as a slurry of fine mineral particles and water, but may also be dewatered and transported using conventional earthmoving equipment. The …
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The main equipment parameters for the pilot-scale study are summarized in Table S2. ... For the copper tailings slurry process, 50 m 3 water and 10 t of copper tailings are required for SO 2 removal. Combined with copper recovery, 0.27 tons of iron powder ($231.2/ton) were consumed for 0.44 t of the copper-bearing minerals ...
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Mining generates 13 billion tonnes per year of potentially toxic wet slurry waste, called tailings, commonly deposited in tailings storage facilities (TSF). Since 1915, 257 TSF failures have ...
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