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This research developed an innovative model to produce copper mine backfill, integrating it with internal waste recycling, including slag and tailings, and conducting an …
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Pyritic tailings experimented in this work were supplied from an active underground copper mine. Two types of concentrate are produced in the concentrator facility of the tested mine: Copper concentrate with 17–18wt.% ... are used as cemented paste backfill (CPB). The primary target of the current work is to recycle dam tailings as CPB ...
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The goal of this review is to present current best practices that enable the mining industry to fully recycle both valuable and residual components of MTs. ... Table 2, Table 3 will provide a comparative analysis of the top five MTs in terms of contribution to global tailings: copper, gold, iron, phosphate, and lead-zinc, with 46%, 21%, 9%, 4% ...
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Against the backdrop of the increasing copper demand in a low-carbon economy, this work statistically forecasted the distribution of China's copper tailings for the first time, and then characterized them as finely crushed and low-grade mining solid wastes containing copper mainly in the form of chalcopyrite, bornite, covelline, enargite and chalcocite based on …
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Mitigating the generation of acid mine drainage from copper sulfide tailings impoundments in perpetuity: A case study for an integrated management strategy. Miner. ... Modelling global nickel mining, supply, recycling, stocks-in-use and price under different resources and demand assumptions for 1850–2200. Min. Metall. Explor., 38 (2) ...
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Publications show e.g. utilization of tungsten mine waste mud for the preparation of geopolymeric binders (Pacheco-Torgal et al., 2008), copper mine tailings use in the production of bricks through geopolymerization (Ahmari and Zhang, 2012, 2013), albite activation for the use in geopolymers (Feng et al., 2012) and sulphidic gold mine tailings ...
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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 waste ...
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In this study, the recycling feasibility of tailings from an active copper mine was assessed through mineralogical characterization, environmental tests (e.g., static, kinetic, and leaching tests), and geochemical modeling. This multi-faceted approach aimed to predict the geochemical behavior and reactivity of tailings under varying conditions.
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The case study features Chilean copper mine tailings, to analyze the ones with significant volume among the 740 tailing storage facilities present in the country. Mine tailings deposits that are currently active were analyzed, using geochemical content information provided by The National Service of Geology and Mining (SERNAGEOMIN).
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Tailings disposal causes long-term environmental pollution through metal leaching or so-called acid mine drainage (Lottermoser, 2010).Furthermore, poor facility management carries dam structural risks, which inadvertently could lead to huge-scale collapses (Franks et al., 2021).The recent 2019 Brumadinho mine accident, among other man-made disasters, was a …
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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. It is well known by the mining industry that the cost of tailings management and reclamation are significant for business profitability and long-term survival.
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Tailings are one of the main solid waste streams generated by the mining industry, eliciting considerable concern worldwide. According to Sari et al. (2022), the annual global tailings production within the mining industry ranges from 7 to 10 billion tonnes.These large amounts of tailings occupy lands that could otherwise support forests/wildlife or be used for farming, …
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By reprocessing tailings, dewatering them and then storing them in a dry stack, mines can remove some of the economic, environmental and societal risks associated with …
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Say a copper mine produced 1Mt of metal in 1999 at 90% recovery. The remaining 10% of copper, around 111kt, went to tailings. ... 3 comments on " Mine tailings: reprocess, recover & recycle " Lawrance Shilowa 5th October 2020. Tailings dams are dangerous if drains blocked and poor supervision. Seepage can develop and cause dam failure.
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(DOI: 10.3390/geosciences12090319) 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 …
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Mine tailings, generated from the extraction, processing, and utilization of mineral resources, have resulted in serious acid mine drainage (AMD) pollution. Recently, scholars are paying more attention to two alternative strategies for resource recovery and ecological reclamation of mine tailings that help to improve the current tailing management, and …
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Copper mine tailings (CMT) are formed through the copper separation and purification process [13]. Gordon reported a worldwide production of around 2.56 billion tons of CMT in 2016 [14]. For a significant period, the management of CMT has been acknowledged as a pressing environmental issue, primarily because of the potential for water and land ...
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The disposal of copper mine tailings (CMT) in finite containment facilities near mine sites is a serious human safety and environmental management challenge in most copper-producing countries of ...
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Among others, the consequences are apparent in the permanent impacts on soil exposure, vegetation, water sources (major impact), atmospheric pollution, and harming the lives of the population in its surroundings [1,13,14,15]. In this scenario, recycling mine tailings can help reduce the number of tailings for disposal.
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The increasing use of copper and its allied materials across many industries is ramping up copper mining activities in many countries, and proper management and disposal of huge volumes of copper mine tailings arising thereof is a huge challenge. Sungun mine is the biggest open-cast copper mine in the northwest of Iran. Approximately 13.7 million tons of …
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This research assesses the feasibility of recycling copper mine tailings (CMT) by analyzing the durability and mechanical characteristics of cement mortar using these tailings as filler additives.
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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 meter), which gives copper grades of 0.27% for inactive and abandoned tailings <10 M t . The investigated TSF was in operation between ...
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In this scenario, recycling mine tailings can help reduce the number of tailings for disposal. Circular economy, recyclability, recycling, and reuse have been identified as emerging solutions that can drive the multidimensional …
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Studies even suggest that the use of copper mine tailings in asphalt production could drastically improve its performance. Tailings have also been used in cement and mortar mixtures and have been found to increase …
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The mine tailings were received in the form of dry powder from Mission Mine Operations of ASARCO LLC in Tucson, Arizona. Table 1 shows the chemical composition of the mine tailings. It can be seen that the mine tailings consist mainly of silica and alumina with substantial amount of calcium and iron.
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Adding to this, the legacy of environmental damage from abandoned mines is worrying; there are around 10,000 abandoned mines in Canada, 50,000 in Australia, and 6000 in South Africa, as well as ...
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In this scenario, recycling mine tailings can help reduce the number of tailings for disposal. Circular economy, recyclability, recycling, and reuse have been identified as emerging solutions that can drive the …
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Acid mine drainage in Western Tasmania. Anita Parbhakar-Fox. Revisiting mine tailings can not only increase the working life of existing mines, it can also potentially breathe new life into long ...
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This chapter discusses the potential valorization of copper mine tailings as a sustainable road construction material through geopolymerization, and addresses environmental, technological, and economic challenges. ... K., Ito, M., & Hiroyoshi, N. (2019). A review of recent strategies for acid mine drainage prevention and mine tailings recycling.
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Future scenario narratives are leveraged to create prospective life cycle assessment models. Copper tailings reprocessing can mitigate GHG emissions and toxicity …
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For example, a fresh coal mine tailings contained almost 28% fine particles with size less than 4 μm [14], and more than 34% of a copper mine tailings solids was reported to be less than 1 μm in ...
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As introduced in Section 2, mine tailings usually contain a significantly higher amount of heavy and toxic metals compared to ordinary Portland cement and traditional SCMs (e.g. coal fly ash). In Refs. [3,4,27,41,57,106,119,133,138,139], the leaching of toxic and heavy metals from concrete containing mine tailings was investigated.
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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. (2018) .
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Pie chart indexes of academic publications in areas of knowledge related to tailings in mining in the world between 1990 - 2022. Data source: Scopus. Given the concerns listed, the objective of this is to present review developments on: (i) the environmental problems of the formation of mine tailings; (ii) options to recycling tailing
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At the same time, with increase in demand for mineral commodities such as coal, copper, iron, aluminium, gold, tungsten, zinc etc., the mining of ores has increased while low grade ores have started being explored [7].The lower the quality of the ore, the higher is the quantity of waste produced such as solids, crushed rocks, overburden soil and tailings.
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In this scenario, recycling mine tailings can help reduce the number of tailings for disposal. Circular economy, recyclability, recycling, and reuse have been identified as emerging …
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