This review paper critically explores available literature on the main techniques of mining tailing recycling, and discusses leading recycling technologies, including the benefits and...
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 ...
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 fraction. Table 6.5 compares the geotechnical properties of copper tailings to those of CS, which have been …
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.
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
Copper is a key resource in modern industry and society. However, copper is finite like all natural resources, and increasing demand for this material depletes global copper reserves. Recovering copper is a crucial strategy to keep up with demand. One approach is to reprocess mining tailings to extract the vital copper resources within.
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 ...
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.
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 …
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 …
However, many tailings generated and stockpiled during the mining process have become an obstacle to developing a low-carbon and green economy. In this paper, we selected copper tailings as a representative case study. First, we used material flow analysis for copper tailings in Tongling City and then constructed a life cycle assessment model.
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 ...
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 ...
There are limited studies having explored the potential of recycling copper tailings as alternative fillers in asphalt materials [25].In the comparative and feasibility analysis between copper tailings and other six solid wastes as filler in asphalt mixes performed by Choudhary et al. [26].The copper tailings-asphalt mix possessed a lower air void, which is deemed to be …
Mine tailings are the waste material that remains after ... from copper mining (Figures 4 and 5). The precise number of active tailings storage facilities is currently unknown. Although incomplete, the Global ... material efficiency and recycling may offset some of this demand, but for many currently important
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 [1,13–15]. In this scenario, recycling mine tailings can help reduce the number of tailings for disposal.
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 …
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 …
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 ...
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.
Applying new technologies and tailings reprocessing and recycling is becoming increasingly important in the mining industry (Maruthupandian et al., 2021; Vitti et al., 2022;Qaidi et al., 2022 ...
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% ...
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 …
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.
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 ...
O. Onuaguluchi, andO. Eren, "Copper tailings as a potential additive in concrete: Consistency, strength and toxic metal immobilization properties," Indian Journal of Engineering and Materials Sciences, Vol. 19(2), pp. 79–86, 2012. ... Ikopbo, Idongesit - Boado, Melissa May. "Potential Recycling of Mine Tailings for PMC's Padcal Mine ...
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.
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 ...
Keywords: copper mine tailings, gold mine tailings, metal–metalloid components, non-metal components, metallurgical reagents, ... Santos R.M. Recycling and Reuse of Mine Tailings: A Review of Advancements and Their Implications. Geosciences. 2022;12:319. doi: 10.3390/geosciences12090319. [Google Scholar] 46.
(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 …