Clean production of sustainable backfill material from waste gold
Abstract. Gold tailings (GT) and slag disposed of in the landfill affect the environment. This study investigated the green process for the utilization of non-radioactive gold tailings and granulated blast furnace slag (GBFS) to synthesize a green and sustainable . The following mix design ratios of GBFS:GT were investigated; 100, 10:90, …Web
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A Sustainable Approach to Transforming Mining Waste into
The mining process generates a significant quantity of waste materials that must be operated strategically to balance economic productivity with environmental sustainability. It will require a holistic approach which integrates all the geological, economic, technical, environmental and social factors.Web
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Alkali-Activated Cements from Urban, Mining and Agro-Industrial Waste
According to, of all the generated mining waste, 4.9% is incinerated, 43% is recovered and 51% is properly landfilled. The current section focusses on three of the most important mining wastes that are currently studied as precursor materials in AAC: red mud (RM); tungsten mining waste (TW) and kaolin mining waste (KW).Web
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The Potential Use of Waste Rock from Coal Mining for the
The process of accumulating waste rock of a mine can lead to environmental pollution. On the other hand, it is the use of natural resources resulting from inappropriate, limited reserves, and increasing depletion. Therefore, a study on the use of waste rock as potential raw materials for the construction industry is necessary [4, 5].Web
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(PDF) Effect on Workability of Concrete due to Partial …
The usage of cement also affects the environment by the emission of carbon and heat this is due to the hydration process of cement. Crushed black stones are a primary waste product from Gold mines ...Web
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Clean production of sustainable backfill material from waste gold
Gold tailings (GT) and slag disposed of in the landfill affect the environment. This study investigated the green process for the utilization of non-radioactive gold …Web
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Recycling of Mining Waste in the Production of Masonry Units
In concrete figures, in 2018, a quantity of 178.6 million tons of mining waste was generated, increasing compared to the previous years, for which, only 8.9 million tons were recovered in various forms [].The use of mining waste in construction may play a significant role for the conservation of natural resources, but also for reducing the impact on the environment or …Web
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Turning Mining Waste Into a Sustainable Concrete …
Turning Mining Waste Into a Sustainable Concrete Replacement $4.38 Million in New Funding Expands NREL Partnerships With Industry and Academia To Develop Revolutionary Mineralization …Web
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Recovery of Mining Wastes in Building Materials: A Review
in concrete as a substitut e for aggregates and cement; in fired b ricks as a . ... Waste rock gold mining [9] 0 5000 ... the ore mined and the process used to obtain the ore. A. N. Ally ...Web
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What is the mining process of gypsum?
The mining process of gypsum involves several steps that start with the identification of the mineral resource and culminate in the final product that can be used for various purposes.Web
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Underground Mine Backfilling in Australia Using Paste Fills and
Underground mine backfilling is a form of ground improvement that has to be carried out in the mine sites. The backfilling provides ground support and regional stability, thus facilitating ore removal from nearby regions. The large underground voids created by the ore removal are backfilled with the waste tailings in the form of paste fills, hydraulic …Web
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A Review on Use of Gold Mine Waste in Preparation of Concrete
February 2023 Authors: Shubham Doiphode Prof. Dr. J Dhanuskar Dr. A. R. Deshmukh Abstract The Rapid increase in urbanisation and industrialisation lead to the construction of huge buildings and...Web
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Geochemical and mineralogical assessment of sedimentary limestone mine
This paper attempts to evaluate the mineralogical and chemical composition of sedimentary limestone mine waste alongside its mineral carbonation potential. The limestone mine wastes were recovered as the waste materials after mining and crushing processes and were analyzed for mineral, major and trace metal elements. The major …Web
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Small-scale mining for gold has produced long-lasting toxic pollution
When artisanal gold miners burn mercury, it is released into the atmosphere and can end up on land or in water. Mining tailings (solid waste) also deposit mercury onto land or into water.Web
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Recovery of Mining Wastes in Building Materials: A …
PDF | On Jan 1, 2021, Alinabiwe Nyamuhanga Ally and others published Recovery of Mining Wastes in Building Materials: A Review | Find, read and cite all the research you need on ResearchGate.Web
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Long-Abandoned Gold Mines Are Reopening
In 2020, roughly 43 percent of gold consumed globally went towards exchange-traded funds and central banks. As prices have risen and mining technology has become more sophisticated, mines are ...Web
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A PRACTICAL GUIDE
Artisanal and small-scale gold mining (ASGM) needs to be brought into the ... Cement production, 10% Waste incineration, 2% Residential heating/other combustion, 20% ASGM, 17% ... Mercury is released into air, water, and soil in several of the steps of this process. 1. Rocks or sediment containing gold ("ore") are mined. 2. If n.Web
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Solidification/stabilization of gold mine tailings using calcium
Based on these findings, the stabilization of gold mine tailings by using CSAB cement was tested in this research. The target was to replace the additional gypsum …Web
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Sustainability | Free Full-Text | Use of Tailings as a
This study assesses the feasibility of reusing tailings from a gold mining area in southern Ecuador in concrete block (CB) manufacturing. For this purpose, physical, chemical, and mineralogical …Web
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Recycling sterile gold mining waste for use as construction …
Sterile waste of various granulometries is produced in the gold mine, due to the mineral extraction process. The thick material obtained from the interior of the mine …Web
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Mining Wastes as Road Construction Material: A Review
The mining industry manages large volumes of tailings, sludge, and residues that represent a huge environmental issue. This fact has prompted research into valorization of these wastes as alternative aggregates for concrete production, embankments, pavement material, etc. The use of mining wastes as a resource for construction presents two …Web
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Solidification/Stabilization Technology for Radioactive Wastes …
Not only this, but the contemporary process of mining uranium (U) discharges elevated quantities of carbon dioxide (CO 2) into the atmosphere. Additionally, ... The cracks of the cement waste form are assigned to the produced swelling pressure of resin of 50 MPa (max)), which goes beyond the tensile strength of the cement waste …Web
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Mine Wastewater Treatment | SpringerLink
Mine wastewater is the wastewater discharged from mining areas, mineral processing plants, waste dumps, tailings ponds, and living districts of the mine. It can be classified into acid wastewater, heavy metal wastewater, cyanide-containing wastewater, and so on. The major pollutants are suspended substances, heavy metal ions, organic …Web
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Are You Mining Minerals for Cement, or for Concrete?
Limestone is one of the key minerals used in cement making. Limestone is a sedimentary rock composed mostly of the calcium carbonate (CaCO 3) and, according to the Mineral Education Coalition, comprises …Web
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Utilization potential of mine tailings in geopolymers
Reusing gold-mine tailings in cement mortars: mechanical properties and socio-economic developments for the Lefke-Xeros area of Cyprus. J. Clean. ... a sustainable process that can transform waste into useful building materials. Geopolymer matrixes with various mixtures of mine tailing (0−100 wt%), fly ash (0−100 wt%), and flue gas ...Web
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Recovery of Mining Wastes in Building Materials: A Review
The size distribution of phosphate miningrock waste is about between 6.3% and 25 mm according to El Machi [8]. The particle size distribution of gold mining waste rock is between 0 and 20 mm, of which 14% is less than 0.1 mm; 10% is between 0.1 mm and 0.6 mm; about 30% is between 0.6 mm and 5 mm and about 46% is between 5 mm and 20 …Web
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The Minamata Convention on Mercury
This process took place over a three-year period (2010-2013), until the ... countries as a by-product from large-scale gold mining or from historical waste (tailings) of silver mining. Formal primary mercury mining has not been reported. ... gold mining 3% Cement production 11% Production of non-ferrous metals 4% Others 7%Web
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Frontiers | Study on the Optimization of Filling Ratio and Strength
The fly ash for underground filling can effectively utilize solid waste, improve the strength of the backfill, and reduce the cost, thus creating good social and economic benefits. Relying on the filling requirements of a gold mine in Jilin, this paper carried out the filling ratio experiments containing fly ash and analyzed the reasons for the variation of the backfill …Web
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Utilizing gold mine tailings to produce sintered bricks
Limited recycling options and large stockpiles of gold tailings lead to a series of social and environmental issues. The recycling of gold tailings is helpful for alleviating …Web
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The chemical composition of waste rock, extracted from gold mining
The iron mine waste consisted of Fe2O3 (56.60%), mainly from magnetite and hematite, and CaO (10.74%) which was derived from anorthite, wollastonite and diopside. The gold mine waste was ...Web
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