Abandoned mineral management has become an important global issue, and the collection, recycling, and disposal of mineral processing tailings (MPT) is critical in both mining engineering and environmental protection. In this study, flocculation sedimentation experiments and slurry rheological tests were carried out with unclassified tailings, and …

The main objective of this study was to characterize the process water and tailings at a range of facilities to identify cyanide and cyanide metal complex concentrations in process water and tailings under intensive recycling and zero discharge practices. For this study, six gold cyanidation facilities, from 10 metric tons/day to 430 metric ...

Most tailings can be thickened mechanically, some to a paste or filter cake consistency. However, clay mineral-rich tailings, such as coal tailings, mineral sands tailings, tailings from some oxide ores, and residue from the processing of bauxite, nickel laterite and oil sands, are difficult to dewater mechanically,

Molybdenum minerals as an important industrial minerals,it has been one of our country traditional advantage minerals.The main application field is the steel,other alloy field and chemical field.It occupies an important position in the whole world and acts an support role to the economy.As a kind of available resources,molybdenum tailings should make full …

Tailings recycling methods reduce the volume of these waste products, decreasing the amount of acidic mine drainage and environmental harm. Both kimberlite tailings and steel tailings can be used to construct roads and pavements (Swami et al. 2007, Oluwasola et al. 2015), successfully replacing conventional materials.

Tailings may be dumped in or near water or transported by wind or water to contaminate the surrounding area. Mine sites typically manage tailings by constructing ponds secured by dams. However, some mining companies are figuring out ways to turn tailings to profits with novel reprocessing technologies to extract valuable metals from …

Additionally, tailings management should aim to their valorization if possible, by re-processing, reusing, and/or recycling. Nowadays, tailings are also seen as secondary sources of metals [ 16 ], construction material [ 17 ], and a source to sequestrate CO 2 emissions [ 18 ].

Recycling of tailings in raw-material-intensive applications presents an interesting alternative to costly tailings management with associated restoration efforts. …

Tailings are the waste materials left after the target mineral is extracted from ore. They consist of crushed rock; water; trace quantities of metals such as copper, mercury, cadmium, zinc; and additives used in processing, such as petroleum byproducts, sulfuric acid and cyanide.

The fine-grained mineral waste left after removal of valuable material from ore is called mine tailing and is the major waste of mining processes . This paper …

In this work, the recycling feasibility of treated calamine processing mine tailing (TCPMT) with glass wastes (GW) for the production of fired bricks is investigated. TCPMT was added into mixtures at a ratio of 0, 10, 20, 30, 40 and 50 % while glass waste was added separately for each formulation at ratios of 0, 5, 10 and 15 % of the dried mass of brick …

Reuse and recycling of mine tailings in whatever form is key to tailings minimization, which in turn is an important foundation to a global sustainable mining industry. Modern mines strive to recycle water and recent advances in filtered and stacked tailings technology (often referred to as dry stacking) are becoming more accepted and …

New technology allows it to recover up to 40% of the gold left in particle form in tailings. DRD Gold extracted 33,600 ounces of gold, worth nearly US$40 million, in the last quarter of 2013. Mintails, a mine tailings processor, has developed new technology to process 350,000 tons of slimes from its extensive tailings resources.

In 2021, Indonesia barred deep-sea tailings disposal due to its environmental dangers. "That currently leaves storage on land," Piggott said. "There is obviously the space issue to liberate tailings sites," where areas need to be mined out first before they can be used to store tailings.

Water recycling and tailings management equipment can help aggregate producers recover process water from the waste stream for reuse in the wash plant, which is beneficial in areas where water is scarce or expensive to buy. This equipment can also be used to generate a drip-free solids material that is easy to handle, allowing producers to ...

Restoration techniques from mining tailing have become increasingly discussed among scholars due to their potential to offer benefits over reducing tailings …

Tailings are waste products of mineral processing, where target minerals or metals of an ore are separated from the unwanted gangue. Thus, the mineralogy of the …

Recycling mine tailings can help reduce the volume of tailings for disposal, mitigate water contamination, and generate new revenue streams such as valuable metals extraction, sulfuuric acid production, and energy generation. ... Outotec has a well-proven treatment process for tailings using the fluid bed roasting process, which can ...

To increase resource efficiency, mining residues–especially tailings–have come into the focus of research, companies, and politics. Tailings still contain varying amounts of unextracted elements of value and minerals that were not of economic interest during production. As for primary mineral deposits, only a small share of tailings offers the …

Recycling of mine tailings can help reduce the amounts of tailings for disposal. Abstract Acid mine/rock drainage (AMD/ARD), effluents with low pH and high concentrations of hazardous and toxic elements generated when sulfide-rich wastes are exposed to the environment, is considered as a serious environmental problem …

In this scenario, recycling mine tailings can help reduce the number of tailings for disposal. Circular economy, recyclability, recycling, and reuse have been …

Typically, the process includes stages of roughing, scavenging, and cleaning, with the recycling of concentrates and tailings to enhance recovery rates and minimize waste. While gravity separation methods offer environmental benefits and operational simplicity, challenges persist in treating IOTs with fine particle sizes and complex mineral ...

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 …

Mine tailings are fine-grained mineral waste produced during ore processing, and they contain valuable metals, water, and toxic elements that cause serious environmental concerns. The most common approach for tailing management is confinement in tailings storage facilities (TSFs) in the form of dams.

Tailings dumps can be gold mines – literally, in some cases. ... This process was initially developed to release gold from pyritic rocks, and is regarded as a greener processing technique.

An objective method for determining the parameters of full tailings flocculation sedimentation was realized and the results of an industrial trial operation verified the reliability of the preferred parameters, which provided an effective basis for refined control of an efficient tailings recycling process. Abandoned mineral …

The second phase of the recycling process involves extraction of the remaining iron, which was accomplished by mixing the slag with crushed electrode after gravitational settling; the crushed electrodes were 1% of the mass of the slag. ... A. A. Veselovskii, "Processing of nickel slag tailings in which nickel and iron are extracted …

In this scenario, restoration techniques from mining tailing have become increasingly discussed among scholars due to their potential to offer benefits towards …

In 2022, her company Nibeenabe piloted its device for remediation and attenuation of multiple pollutants (DRAM) technology to filter the tailings from a Madre …

The experimental process was presented in Fig. 1 and comprised three stages, including magnetization roasting of iron tailings, alkaline leaching of roasted products, and magnetic separation of leaching residue. The roasted ore was leached with NaOH solution to remove Si-Al gangue minerals, following a procedure that entailed …