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Recycling and Reuse of Mine Tailings: A Review of …

the population in its surroundings [1,13–15]. 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 aspects of sustainability in the mining and metal extraction industries.

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Chemical characteristics and acid drainage assessment of mine tailings

Acid Mine Drainage (AMD) is a great concern in many abandoned mines because of its adverse effect on the environment. In mining processes, many kinds of wastes are produced. These wastes may become eventually sources of environmental degradation. The focus of this study is the geochemical characterization of the end …

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Study on strength characteristics and thickening

Xiao-yu Tang & Bao-jie Fan Scientific Reports 13, Article number: 8361 ( 2023 ) Cite this article 270 Accesses Metrics Abstract For some new mines, the …

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(PDF) A new approach to the recycling of gold mine tailings using …

Slag composition is the most important factor in manufacturing slag granules. The waste was mixed with the ratio of 26 wt% of tailing, 38 wt% of red mud and 36 wt% of waste limestone for a better ...

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Geotechnical Properties of Mine Tailings | Journal of Materials in

The exploitation and use of mineral resources produce large amount of mine tailings that are commonly in slurry form with high water content and compressibility. ... The copper and gold tailings from Qiu and ... but also depends on the grade of mine, mining technology, mill process, deposition method, mineralogical composition, etc. According ...

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(PDF) Physicochemical properties, heavy metals, and metal …

Gold mine tailings enriched the soil with HM and also affect soil physicochemical properties. Proper management of mine wastes must be ensured to prevent their adverse effects on the diversity ...

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RE-PROCESSING GOLD TAILINGS IN SOUTH AFRICA

historic gold tailings dams in the Witwatersrand area of South Africa is being investigated. The objective is to recover uranium and residual gold from the tailings, as well as to oxidize the sulphides to eliminate long term environmental liabilities associated with acid mine drainage. The tailings from the re-processing plant will be re-

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Production of gold mine tailings based concrete pavers by …

The GMT used in this study are the tailings from the artisanal sector of eastern DR Congo in the Province of South Kivu in the Misisi mining area (Fig. 1 a).The Misisi antenna is one of eight mining antennas in South Kivu Province where artisanal gold mining is more developed in terms of annual gold production.

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Environmental desulfurization of mine wastes using various …

The modal mineralogical composition of mine wastes is the first information to determine. ... Gold–sulphide deposits of the russian arctic zone: Mineralogical features and prospects of ore benefication ... chemical, and mineralogical characterization of the Raglan Mine tailings; ii) optimization of the pyrrhotite flotation process; and iii ...

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(PDF) Gold Mine Tailings: A Potential Source of Silica Sand for …

Therefore, this study utilised a vitrification process to manufacture glass from gold mine tailings. X-ray fluorescence was used to determine the chemical composition of the tailings while X-ray diffraction was adopted for the mineralogy. The tailings were of granitic composition enriched in potentially toxic elements such as copper, cadmium ...

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Minerals | Free Full-Text | Gold Mine Tailings: A Potential Source …

Mining of minerals such as gold, copper, and platinum has been one of several activities sustaining the economy of South Africa. However, the mining sector has contributed significantly to environmental contamination through the improper disposal of mine tailings which covers vast areas of land. Therefore, this study utilised a vitrification process to …

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Characterization and treatment of artisanal gold mine tailings

The present study focused on the tailings of an artisanal gold mine area located in the Brazilian northeastern. Samples of the mine tailings were taken and used to perform a physical and chemical characterization study using X-ray diffraction, scanning electron microscopy, neutron activation, X-ray fluorescence, induced coupled plasma …

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Office of Wastewater Management

Mill Tailings Table 1: Mining Waste Produced by Various Industries in 1992. Industry: Amount of Waste (metic tons) Gold Mining: 540,661,000: Copper Mining: 731,065,000: Potash: 197,000: ... mine water can be a significant problem because of its enormous quantity and chemical composition. Mine water may have to be pumped continuously …

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IJERPH | Free Full-Text | Heavy Metal Pollution from Gold Mines …

Gold mine tailings are characterized by poor physical properties like poor aggregation, high hydraulic conductivity, fine texture and very limited cohesion ability. These properties make tailings different from soil [ 19, 20 ] and the lack of cohesion is responsible for the varied moisture content and temperature seen in this toxic waste.

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Leachability of Arsenic and Heavy Metals from Mine Tailings of

1. Introduction. Mining operations generally produce many types of mine wastes, including mine tailings, waste rock and slag. Mine tailings out of those, in particular, act as a main source of environmental contamination [].Arsenic (As) and heavy metals may be released from the mine wastes to the ground and surface water systems, …

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Mineralogical characterization of arsenic in gold mine tailings from

Bioaccessibility tests and mineralogical analyses were performed on arsenic-contaminated tailings and soils from gold mine districts of Nova Scotia, Canada, to examine the links between soil composition, mineralogy, and arsenic bioaccessibility.

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Placer Gold Recovery Methods, 1986

lic operations. For the next 14 years, drift mining placer gold deposits in buried Tertiary channels partially made up for the loss of placer gold production, but overall production declined. Production rose again with the advent of large-scale dredging. The first successful gold dredge was introduced on the lower Feather River near Oroville in ...

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Gold Mine Tailings: A Potential Source of Silica Sand for …

composition of mine tailings generated during the extraction of gold show close features with those frequently used raw materials in glassmaking processes [33,34]. The various environmental issues resulting from gold mine tailings had called for several scientific investigations to resolve the environmental burden that emanates from mine tailings.

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Ore Dump Gold Prospecting – Finding Gold in Colorado

When exploring old mining districts across Colorado, prospectors may run into hard rock mines with ore dumps nearby. These large piles of brocken rock from underground can contain impressive gold/rock specimens and overlooked ore. Mine-side ore dumps are often a combination of barren rock removed as the original miners …

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Effects of soil composition and mineralogy on the

Bioaccessibility tests and mineralogical analyses were performed on arsenic-contaminated tailings and soils from gold mine districts of Nova Scotia, Canada, to examine the links between soil composition, mineralogy, and arsenic bioaccessibility. Arsenic bioaccessibility ranges from 0.1% to 49%.

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Insight into soilless revegetation of oligotrophic and heavy metal

1. Introduction. As the solid waste inevitably created in gold extraction process, gold mine tailings account for a larger proportion of the extracted gold ores (Belle et al., 2021).At present, China produces over 24.5 million tons of gold tailings every year, and the output and stock of gold mine tailings consistently and significantly raised due …

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Tailings microbial community profile and prediction of its

The chemical analysis of the two tailings basins of Panasqueira mine showed a very similar composition profile. The most abundant elements in the two basins were Si, Al, Fe, K, S and As (Table 1 ).

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Modelling and optimization of gold mine tailings based geopolymer …

Gold mine tailings slurry which was obtained from Bergama Ovacik Gold Mine Treatment Plant, Turkey, was used as alumina silicate material. The slurry sample was dried at 105 °C for 2 h and crushed in a grinder and then sieved to 180 μm. ... The variation in physicochemical characteristics and microbial community diversity and composition …

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Cyanides, Arsenic, and Noble Metals in Abandoned Gold Ore

Geochemical and geophysical investigations were performed in an area of the Darasun ore cyanidation tailings impoundment, which is located in a permafrost region. The tailings contain up to 40 wt% pyrite and 5.7 wt% arsenopyrite. The purpose of this work was to determine the composition and mechanisms of transformation of the tailings …

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New Optimization Understanding of the Removal of Harmful

Gold mine tailings and other mine wastes are associated with the release of toxic elements, such as Zn, Cd, Hg, Cr, and As. Gold mine wastes are exposed to surface or underground workings and form ponds or piles on development rocks, which can lead to the leaching of different kinds of metals and ions, such as Zn +2, Cd +2, Hg +2, Cr +3, …

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(PDF) Stabilization of gold mine tailings: The effect of hydrated …

The chemical composition of the gold mine tailings depends on the . mineralogy of the ore deposits, the characteristics of processing fluids used from the processing plant [20-21].

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Gold Mine Tailings: A Potential Source of Silica Sand for …

composition of mine tailings generated during the extraction of gold show close features with those frequently used raw materials in glassmaking processes [33,34]. The various environmental issues resulting from gold mine tailings had called for several scientific investigations to resolve the environmental burden that emanates from mine …

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Geochemistry and mineralogy of auriferous tailings …

In this work, gold mining tailings were studied in order to identify their value through the use of characterization and geostatistical tools.

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Mechanical and Hydration Characteristics of Stabilized Gold Mine …

Sustainable resource utilization of tailings is a long-term challenge. Therefore, a novel waste-based binder is proposed in this study to stabilize/solidify gold mine tailings (GMTs). This binder is composed of fly ash (FA), ground blast furnace slag (GBFS), and metakaolin (MK) activated with mixed calcium carbide residue (CCR) as well as pure …

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(PDF) The composition and state of gold tailings

Individual layers of deposited tailings are composed of mixtures of tailings sand (particles larger than 63 m) and tailings slimes …

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MINE TAILINGS FACILITIES: OVERVIEW AND INDUSTRY …

The composition of mine tailings varies according to the mineralogy of the ore deposit and how the ore is processed. ... Gold 21% Iron 9% Coal 8% Phosphate 4% Lead – zinc 3% Nickel 2% Platinum Group Elements 1% Bauxite 1% Uranium <1% Chromium <1% Molybdenum <1% Tin <1% Vanadium <1%

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(PDF) Gold Mine Tailings: A Potential Source of Silica

The tailings were of granitic composition enriched in potentially toxic elements such as copper, cadmium, zinc, lead, arsenic, and chromium. A representative sample of gold mine wastes of...

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Mineralogical and Geochemical Characterization of Gold …

Lemos, M.; Valente, T.; Reis, P.M.; Fonseca, R.; Delbem, I.; Ventura, J.; Magalhães, M. Mineralogical and Geochemical Characterization of Gold Mining Tailings …

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Mineralogical and Geochemical Characterization of Gold Mining Tailings

For more than 30 years, sulfide gold ores were treated in metallurgic plants located in Nova Lima, Minas Gerais, Brazil, and accumulated in the Cocoruto tailings dam. Both flotation and leaching tailings from a deactivated circuit, as well as roasted and leaching tailings from an ongoing plant, were studied for their acid mine drainage …

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