Abstract. Efficient thickening of tailings is a prerequisite for the metal mine tailings backfill and surface disposal operation. The effective collision of ultrafine …

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Risk mitigation by conceptual design of a tandem of tailings dams. By D. Stematiu, R. Sarghiuta. ... le traitement par flottation du minerai, la production du concentré d'or et …

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Flotation tailings reprocessing consisted of acid leaching followed by re-flotation of the leach residue. Leaching of the tailings resulted in leach liquors containing Cu²⁺ ions from 50 to 580 ppm.

Thickened tailings can be mixed with cement and used in construction or as backfill in underground mines. Now, some mining companies are figuring out ways to …

The synthetic tailings, composed of quartz and kaolin particles, are flocculated in a jar at a constant shear rate where in-situ FBRM determines the size of …

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Stava, Italy: In 1985, tailings dams built to store waste from flourite mining failed due to poor design and extreme water pressure. Two hundred thousand cubic …

Fig. 2 shows the particle size distribution (PSD) of the materials (model soil and fine tailings) used in the present study. Fig. 2 also depicts the PSD of a few tailings materials (for comparison purposes only) used by Matyas et al. (1984) and Hu et al. (2017) in the past. The shell zone and the tailings material gradation adopted in the present …

Flotation tailings rich in carbonate minerals from the tailings deposit of the copper mine Majdanpek (Serbia) were applied for neutralization of the water taken from the extremely acidic Lake ...

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First, we establish a closed-form expression for the expected value of a conventional mining project, subject to the risk of tailings dam failure, accounting for …

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Communities and authorities have been dismayed by globally recorded tailings storage facility (TSF) failures in recent years, which have negatively affected the safety of people and the integrity of the environment. In this context, obtaining the social and environmental license to operate TSFs has become a challenging process for …

Significant interest has been focused on recovery rates, recovery options, and recovery utilization when tailings impoundments are re-mined. However, the stability of the tailings dams during the recovery process is also a severe issue. Based on engineering geological surveys and laboratory tests, the evolution of the Tongling tailings …

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Tailings embankment is the dam heaped by tailings year after year during operation of the tailings pond. It is the main body of tailings dam; it is also known as the late-stage dam. Due to the differences in heaping process and method, the shape and performance of embankment during heaping and finally formed embankment vary …

Storage of waste materials or tailings disposal has become a serious matter for the mining industry due to its enlargement especially for the last 30 years. During the beneficiation of valuable metals and industrial minerals from their ores, large volumes of waste materials or tailings may be produced and these tailings may be harmful to the ...

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PDF | Flotation waste, which was produced through seventy years of copper ore processing in RTB Bor, Serbia, is deposited in a flotation tailings pond.... | Find, …

Rates of rise (vertical increase in height of settled tailings over time expressed in metres per year) of 10 m/yr and 20 m/yr were evaluated by depositing the gold tailings in layers.

Based on research carried out at 67 tailings dams in Spain: (1) tailings dams contain alternating sedimentary layers with contractive and dilative geomechanical behaviours; (2) tailings saturate quickly but drain more than 10 times slower due to the high-suction capacity of the porous sediments (2–300 MPa); and (3) over the long-term, …

The ratio of tailings to concentrate is commonly very high, generally around 200:1 (Lottermoser, 2007).Moreover, as the point of peak metal production is surpassed, the extraction of lower grade ore is an established long-term trend (Mason et al., 2010).For example, in Australia the average Cu grade was c. 10% in 1885 but it fell to 1% by 2005, …

PDF | Flotation tailings rich in carbonate minerals from the tailings deposit of the copper mine Majdanpek (Serbia) were applied for neutralization of... | Find, read …

The technology of CPB can utilize the storage of up to 60% of the tailings, but the other 40% of the tailings will still remain and thus an alternative method to reuse the tailings must be found [9].

The impoundments served the dual purpose of containing the tailings and, particularly in the arid west, allowing the re-use of scarce water. 1 f Design and Evaluation of Tailings Dams More recently, concerns have been raised about the stability and environmental performance of tailings dams and impoundments.

Polymer-assisted flocculation-dewatering of mineral processing tailings (MPT) is crucial for its environmental disposal. To reduce the number of laboratory experiments, this study proposes a novel ...

Deep sea mining tailings disposal is a new environmental challenge related to water pollution, mineral crust waste handling, and ocean biology. The objective of this paper is to propose a new tailings disposal procedure for the deep sea mining industry. Through comparisons of the tailings disposal methods which exist in on-land mining …

This research presents a successful case, in which geotextile tubes have been used to construct a tailings dam for fine tailings disposal since 2008. Up to the end of 2016, the tailings dam raise ...

Based on the pilot experimental results it was established the possibilities to replace traditionally tailing pond with surface disposal and to obtain flotation dewatered tailings with 80.0% ...

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Tailing dams are complex geotechnical structures. The present paper focuses on the Sarcheshmeh Copper Complex tailing dam in Iran, with the objective of gaining knowledge about the tail behavior under consolidation. The main goal is to find the steady-state flow of the tail consolidation. The tail consolidation was modeled by using …