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In 2008, Antonijevic proposed copper recovery from Bor copper mine tailings through acid leaching. The tailings had around 21% sulfide content and 0.2% copper, with a particle size of approximately 0.074 mm. He used a 1-L beaker with mechanical and magnetic agitators, employing 500 mL of leaching solution and 100 g of …
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An alternative process to obtain a high degree of dewatering tailings that produces a high-density product is presented in this article. This technology involves the combination of tailings particle grain size …
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Abstract: The flotation tailings obtained from Bor Copper Mine contain pyrite (FeS2) and chalcopy‐ rite (CuFeS 2 ), these sulfide minerals are known to promote acid mine …
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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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83.5% Gold Recovery and 94.6% Silver Recovery Demonstrated by EnviroGold Global for Hellyer Refractory Tailings with 634k oz Gold, 22.9M oz Silver and 419k tonnes Copper-Lead-Zinc with grades of 2 ...
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The mining industry produces large volumes of mine tailings – a mix of crushed rocks and process effluents from the processing of mineral ores.Mine tailings are a major environmental issue due to implications related to their handling and storage. Depending on the mined ore and the process used, it may be possible to recover …
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Membrane filtration is an effective treatment method for oil sands tailings pond recycle water (RCW); however, membrane fouling and rapid decrease in permeate flux caused by colloids, organic matter, and bitumen residues present in the RCW hinder its successful application. This pilot-scale study investigated the impact of different …
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This chemical reaction produces acid mine drainage (AMD), a pollutant that is present at many abandoned mine sites. Learn more about abandoned mine drainage. Copper mining waste storage piles may be as large as 1,000 acres and typically include three types of waste; tailings, dump and heap leach wastes, and waste rock and …
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Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called cathodes, which will ultimately be made into products for everyday use.The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and …
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Very small diamonds can be recovered from the residue of the original diamond-bearing ore, and the U.S. Geological Survey found that …
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The external ultrafiltration of Berghof Membranes provides different solutions for mining wastewater, satisfying the most common demands from the mining industry: robustness, compactness, modularity and ease of maintenance are crucial features for any equipment to be installed in the remote mining locations.. Direct UF is applied for tailings and AMD, …
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The amount of mine tailings has drastically increased with the development of the mining industry, and most tailings are stored in ponds because they still contain some valuable noble metals and toxic …
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The valorization of phosphate mine waste (PMW) in different fields has recently become attractive to many researchers. This review paper examines the potential use of PMW as a raw material in different …
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The high-volume, fine grained tailings produced from Pb/Zn ore processing need to be carefully managed. Metalloid elements, As and Sb, are present in tailings at ∼800 and ∼80 mg kg −1 respectively, and in neutral pH leachates at 5–50 μg L −1. Despite these relatively low leachate concentrations, As and Sb can cause regulatory concern ...
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New technology allows it to recover up to 40% of the gold left in particle form in tailings. DRD Gold extracted 33,600 ounces of gold, worth nearly US$40 million, in the last quarter of 2013. Mintails, a mine …
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5. Tailings management within the circular economy in mining. In this chapter, the possibilities to manage the mine tailings with reduce, reprocessing, upcycle, downcycle and disposal strategies are discussed. In the subchapter 5.2, an inventory of the metal content of mine tailings in Finland is presented. 5.1.
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Nowadays, many major copper mining projects in desert areas with extremely dry climates, as in northern Chile and the southern coast of Peru, process sulfide ores at high production rates; in some …
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As ore grades constantly decline, more copper tailings, which still contain a considerable amount of unrecovered copper, are expected to be produced as a byproduct of froth flotation. This research reveals the occurrence mechanism of copper minerals in typical copper sulfide tailings using quantitative mineral liberation analysis …
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of mining, yet these tailings deposits contain high recovery rates with existing projects, for example, recovering 2 g/t Au and achieving 63% Fe grade at 50% yield." 10. International Mining | MAY 2020. st. While tailings dam liabilities and falling water resources are. affecting the ability of miners to start new mines, or expand
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Evaluation of the possibility of copper recovery from tailings by flotation through bench-scale, commissioning, and industrial tests. The evaluation of flotation …
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Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are separated as tailings. However, a significant amount of copper is lost into tailings during the processing; therefore, tailings can be considered …
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A sample of flotation tailings obtained from Bor Mining, Serbia, was used in this study. The chemical compositions of the initial sample (flotation tailings) and feed …
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Extracting copper, nickel, cobalt and other minerals from mine waste could provide a key new source of the minerals needed for the energy transition while at the same time cleaning up old mine ...
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The Industrial Application of Ultrafiltation and Reverse Osmosis for the Recovery of Copper, Silver and Cyanide from Gold Leach Liquors August 2018 DOI: 10.1007/978-3-319-95022-8_156
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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 minerals that …
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For copper, which makes up 46% of the global tailings volume, the total amount of tailings and waste rock predicted over 2020–2050 is 858 Gt (ref. 37). Further, …
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Water resources are under continued pressure from anthropogenic sources, including acidic waste from abandoned mine sites and alkaline waste from a variety of industrial activities. Large quantities of mine and industrial wastes are typically stored in tailings facilities which can generate significant quantities of leachates due to …
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A combination of hydrometallurgical processes of high-pressure oxidative leaching (HPOL), solvent extraction (SX), and electrowinning (EW) were utilized to recover copper from mine tailings...
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1. Introduction. The omnipresence of valuable mineral resources plays a pivotal role in economic development, with coal and gold mining being historically perceived as the backbone of the economy and the main driver of economic growth in low- and middle-income countries (LMICs) (Berenbaum et al., 2019; Haldar, 2018; Masindi et al., …
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To render arsenic- and selenium-containing waters safe for humans and the environment, the U.S. Environmental Protection Agency (EPA) specifies treatment to levels of arsenic that are no higher than 0.010 milligrams per liter (mg/L) in drinking water and levels of selenium that are no higher than 0.05 mg/L in drinking and raw water.
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