The results suggest that acid leaching can be an effective approach for processing old flotation tailings, which allows the extraction of base metals from these wastes and the treatment of flotation tailings for subsequent …
A sample of old pyrite flotation tailings from the concentrator contained 11.4% sulfidic iron, 14.5% sulfidic sulfur, 0.26% copper, 0.22% zinc, and 0.67 g/t gold. Pyrite was the main sulfide mineral (31%). The gold recovery from the unoxidized flotation tailings was 50%. Recently, it …
Biosorption is a significant mechanism of MT tailings treatment by algae. Literature reported dead cells of algae to be more efficient for metal removal compared to the living cells in cases where the carboxyl group significantly influences metal binding on the surface of the cell and intracellular ligands (Srinath et al., 2002; Velásquez and ...
The gold mill tailing treatment process is the process that fulfills the function of pumping the waste from the leached pulp treatment process towards the plant's residues deposit . It pushes gold mill tailings thickener waste, which is the last stage of the counter-current decantation circuit used to recover mineral ore, toward a tailings ...
Tests on oil sands tailings are underway in tanks at Western University in London, Ontario. "We're running a process optimization program, refining our treatment techniques," said Clare Armstrong, manager of research and development at ElectroKinetic Solutions (EKS), a company exploring the use of EKR for oil sands tailings treatment. "We …
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Evaluation of pre-treatment methods for gold recovery from refractory calcine tailings November 2022 Journal of the Southern African Institute of Mining and Metallurgy 122(10):1-10
After 7 d, the UCS of the tailings was only 0.05 MPa, when the CT were still in a loose state. After 28 d, the UCS value reached 0.74 MPa, and the compressive strength was greatly improved. After the MICP treatment, the loose tailings were cemented into a whole, and the mechanical strength was significantly improved.
Tailings management regulations (e.g., Directives 074 and 085) were put into place as a response to increasing concerns over the risks and uncertainties associated with tailings ponds management and increases in oil sands tailings inventory (Alberta Energy Regulator, 2009, 2017).Since then, oil sands operators have attempted to reduce tailings …
Pyrite (FeS 2, iron disulfide) is the most abundant and widespread of the earth's sulfide minerals and is frequently found in massive hydrothermal deposits, veins and replacements, igneous rocks and sedimentary beds [1], [2].Pyrite has little economic value but is frequently associated with valuable minerals such as sphalerite, chalcopyrite and galena.
Load-and-haul mining will be used to extract resources from the smaller North Sands and South Sands tailings dumps. The re-mined tailings will be processed in a CIL plant of similar design to the Elikhulu operation, with an …
For example, typical coal preparation plants discharge 75–120 kg of dry tailings per tonne of coal processed.These tailings are in the slurry form, with total solid contents ranging between 20% and 35% (w/w) (Ryu et al., 2008, Beier and Sego, 2009, Murphy et al., 2012).In 2002, the U.S. National Research Council estimated that 70–90 million tonnes of tailings were …
Mine tailings are the byproduct of mining activities, which need to be disposed of once the minerals in the ore are extracted. They can be disposed of in either dry or wet forms. The latter is most common, with the tailings being disposed of in the form of slurry inside retention structures. The retention structure may be a natural or manmade dam, with a …
As the main sulfide mineral in cyanide tailings, how to reduce cyanide inhibition and thus improve the flotation recovery of pyrite is of great significance to the comprehensive …
This work evaluates the application efficiency of coal tailings beneficiation as a solid sorbent in the treatment of real wastewater contaminated with nitrate. The solid was characterized by XDR, SEM, FTIR and TGA. Adsorption experiments were performed in batch evaluating the effects of pH, solids concentration and contact time parameters. The kinetics of …
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investigated the effect of potassium permanganate pre-treatment on gold extraction. The pre-treatment procedure summarized in Table III involved oxidizing the tailings (50% solid loading) in 2 g/L potassium permanganate solution for 24 h. The pre-treatment initial conditions were pH 5.10 ± 0.05 and Eh of 110 ± 3 mV,
The physical-chemical strategies of conventional technologies, such as constructed barriers were implemented to prevent the further spreading of tailings, but are limited by their high costs (approximately 100–500 $/ton) (Cristaldi et al., 2017).Phytoremediation are also limited because the acidification conditions of tailings may inhibit the survival of native plants (Zhou …
Affiliations 1 School of Water Resources and Environment and Research Center of Environmental Science and Engineering, Sino-Hungarian Joint Laboratory of Environmental Science and Health, Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, Beijing, 100083, China. …
In this article the recovery of pyrite before storing it in the tailing deposit to produce pyrite concentrates of economic interest, and to avoid the generation of acid mine drainage-AMD when...
Operators must submit a summary of fluid tailings management activities during the reporting period, including fluid tailings treatment and placement operations (showing alignment with the reclamation plan), technology development, and contingency or mitigation actions initiated in response to fluid tailings volume profile deviations or ...
DOI: 10.1016/J.MINENG.2014.01.018 Corpus ID: 96620110; Current state of fine mineral tailings treatment: A critical review on theory and practice @article{Wang2014CurrentSO, title={Current state of fine mineral tailings treatment: A critical review on theory and practice}, author={Chen Wang and David Harbottle and Qingxia Liu and Zhenghe Xu}, journal={Minerals Engineering}, …
The total results make contribution to the resource of pyrite tailings, which are also benefit to the development of novel effective and economic medium for BAFS in the advanced treatment of wastewater.
Remining the Mogale Gold tailings storage facilities is expected to add about 50 000 oz/y of production over its 13-year life-of-mine (LoM). The project entails low unit-cost hydromining, with low ...
Mine Tailings Water Treatment. The composition of tailing water can vary significantly depending on the ore being mined and the processing methods used. Here's a breakdown of some key contaminants and their potential environmental threats: Suspended Solids: These fine particles (think silt or clay) range in size from 1 micrometer (µm) to 1 ...
Natural uranium is a crucial resource for clean nuclear energy, which has brought significant economic and social benefits to humanity. However, the development and utilization of uranium resources have also resulted in the accumulation of vast amounts of uranium mill tailings (UMTs), which pose a potential threat to human health and the ecological …
The aim was to unlock gold from the complex mineralogy and formulate relationships between the prior treatment of the tailings and the gold extraction behavior. Several potentially viable pre-treatment methods were considered as options, i.e. ultrafine milling as a mechanical technique, sodium hydroxide pre-leach as a chemical technique, and ...
One of the most significant challenges that the mining industry is facing today is dealing with residual minerals, the so-called mining tailings. Simply put, tailings are all the minerals discarded in the beneficiation …