The tailings will be released and migrated into water bodies and soil through oxidation, weathering, and other effects in the process of tailings storage. Heavy metals cause serious pollution to the surrounding water and soil environment, pose a threat to farmland and other ecosystems, and human health is also endangered (Nguyen et al., …

There is an estimated total of 217,330,652,000 m 3 of tailings in storage globally, with copper accounting for ... its "more energy-efficient process to extract copper from regular- and lower ...

Copper mine operations consistently generate a large quantity of tailings after their concentration processing. These tailings are either piled up or stored in a dam, where both alternatives of disposal lead to environmental impacts. The dam copper tailings have a huge potential for by-product production thus improving sustainability …

The dewatering of tailings is one of the serious challenges that the mining and mineral processing industries have encountered internationally. Solid–liquid separation methods are applied to wastewater, which generally consists of fine particles and water; fine particles are settled in thickeners by the flocculation method and the cleaned water is …

This study aims to investigate the potential of mechanical–electrical dewatering (EDW) on the recovery of process water from tailings slurry of Miduk copper mine.

The Highland Valley Copper Mine is located just outside the town of Kamloops in British Columbia, Canada. The mine produces copper (435,000 tonnes in 2003) and molybdenum (6405 tonnes in 2003) concentrates. The tailings pumped to the Valley Impoundment in 2003 were 48.5 million tonnes. Valley Impoundment

As copper tailings appear in ground form, the grading of copper tailings reported by Gupta and Thomas (2013) and Nitish et al. (2013) has a sizeable silt fraction of 0.06–0.002 …

The results show that a plant to be installed in Chile to process copper tailings for the recovery of vanadium pentoxide using hydrometallurgical processes would generate the processing cost of 6,218 US$/t of V 2 O 5. It is assumed that this plant would have annual production of 4,400 t, using average ore grade of 0.26%, and a recovery …

1. Introduction. Copper tailings are the fine-grained remains of copper ore produced through a series of processing techniques, and belong to the by-products produced during the mining process of mineral resources [1].It is characterized by a high SiO 2 content and a mineral composition dominated by quartz and silica-aluminates [2].As of 2022, the …

The second finalist is a consortium comprising Americas Tailings Inc. and Advancing Materials Processing Inc., which aims to produce fertiliser from copper tailings. By the …

Abstract This research aimed at recovering metals retained in the tailings from the flotation of copper (Cu) and cobalt (Co) ores conducted at the New …

They are a mixture of ground rocks and process effluents generated during processing of the ores, and their composition depends on the nature of the mined rock and the recovery process used. In copper mining, tailings can account for 95–99% of crushed and ground ores (Edraki et al., 2014).

The concentration of sulfide copper minerals by means of flotation generates large volumes of tailings. It is estimated that one hundred twenty-five tons of tailings are generated per one ton of produced copper, and its generation is on a continuous rise because of the decrease of the copper grades [1].On the one hand, the tailing is …

The tailings storage facility at BHP's ndida copper mine in Chile. ... an unfortunate by-product of mineral processing which must be managed in perpetuity at the expense of the operator has taken on new potential, with stronger governance and fresh investment opening possibilities for more responsible storage methods and even valorization ...

Iso-floatability flotation process was further applied to the magnetic tailings, achieving a copper grade of 28.37 wt.% and a recovery of 25.11% in the copper concentrates. Subsequently, zinc and lead grades of 49.04% wt .% and 8.06% wt .% were obtained in the zinc-lead concentrates, with a recovery of 51.72% and 25.21%, …

The remaining 10% of copper, around 111kt, went to tailings. If the average copper price in 1999 was US$1,500/tonne then that 10% represented US$166.5 million of metal. ... there are now some cases where the reprocessing of tailings works out cheaper than processing material.

To better highlight the changes in pore space of copper tailings flocs under different reagent conditions, threshold-based image processing analysis was conducted using ImageJ. The blue coloration was defined as the pore space within the floc structure by the over/under method, as shown in Fig. 12 .

years. Total copper production from 1900 until the end of 2020 was about 740 million tons [5, 6]. In a situation in which global copper de-mand is growing and copper prices are steadily increasing, reprocessing copper tailings is be-coming an increasingly logical decision [7, 8, 9]. In most of the copper tailings deposited in the

Prior to processing, a systematic and comprehensive characterization study of copper tailing (CT) samples was conducted to examine the deportment of Te minerals in different mineral phases and to ...

Up to 20% is saved when we use copper ore tailings instead of Portland cement. The copper tailings produced in this way have good strength and durability characteristics. ... Pramusanto, P.; …

The copper grade is substantially higher compared to the average copper grade in tailings from the 1930s of 0.33% and far above the average of SERNAGEOMIN's cadaster of mine tailings (sampling only the first meter), which gives copper grades of 0.27% for inactive and abandoned tailings <10 M t . The investigated TSF was in operation between ...

Copper tailings are produced from different mines, and thus it is important to fully characterize the quality and quantity of copper tailings at each site. ... Feasibility of …

The majority of copper mines generate a large quantity of tailings after their concentration processing. The flotation tailings are, in general, either piled up or stored in dams, although most copper tailings have a huge potential for by-products production leading to improve sustainability and profitability of operations.

Therefore, the consolidation process of the fine iron tailings during and after the construction of the tailings dam can be analyzed with the traditional Terzaghi's theory, whereas for the fine …

Copper flotation tailings processing - Hydrometallurgical alternatives. June 2018; ... The subject of the research was a sample of pyrite flotation tailings containing copper, 0.26%, zinc, 0.22% ...

Copper processing at Gay was technologically modern. The two mills housed six steam-powered coal-fueled stamps to crush rock and separate out copper. ... Water was pumped from Lake Superior to move the rock through the mill and produce copper concentrate, then the tailings slurry was expelled back into the lake along a series of …

Abstract This research aimed at recovering metals retained in the tailings from the flotation of copper (Cu) and cobalt (Co) ores conducted at the New Concentrator in Kipushi (NCK). Metals retention in the tailings (0.73% Cu and 0.37% Co) increased due to the removal of the gravity separation section from the processing circuit together with …

The cyanidation of copper flotation tailings containing sulfides for gold recovery is an example of the formation of cyanide complexes with copper and silver during the leaching process [11,12]. Figure 4 shows the MLA Automated Minerology image of an ore sample from a copper mine in Mexico, containing chalcopyrite and bornite as copper sulfide ...

Production of electrolytic copper from Zhezkazgan Processing Plant tailings leaching solutions using a hydro-impulse discharge In this work, for the first time, studies of the mineralogical composition and chemical semi-quantitative spec-tral analysis (SQSA) of the Zhezkazgan processing plant tailings before and after leaching were carried out. It

Ores that contain copper in the U.S. are typically mined in large, open-pits. Copper processing facilities are usually located near mining or extraction sites. ... extraction of copper by surface or underground methods can concentrate and expose radionuclides in the waste rock and tailings tailingsThe remaining portion of a metal …