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The bioleaching recovery of nickel from low-grade nickel-copper sulphide tailings was found to be as high as 91.5%; ... or harsh leaching conditions and high equipment requirements, or high acid ...
How mine tailings storage facilities (TSF) are managed reflects the history, regulatory framework, and environment of a country and locale of the mine. Despite many attempts to find an environmentally friendly strategy for tailings management and governance that balances the needs of society and the ecosystem, there is no …
Finally, the copper content is enriched using equipment such as flotation cells and multi-gravity separators, and then the tailings composition is redetermined. …
Conformance with the Tailings Standard includes engagement with our neighbors and communities to inform you of how you may be affected by your proximity to a TSF. As a result, we have produced this guide, which is divided into five sections. 1. About tailings and tailings storage facilities (TSFs) 2. Freeport-McMoRan's Tailings Management ...
To reduce the negative impact on the environment and use the secondary resource of copper mine tailings, this study provides an attractive method for recycling mine tailings into building materials and creating zero-emission tailings, which could be helpful for the production of construction bricks using green raw materials and industrial …
PDF | Reducing the amount of water in a milled tailings storage facility (TSF) is the primary way to reduce the risk of a catastrophic failure. In... | Find, read and cite all the research you ...
talised, single-discipline, linear approaches.This chapter introduces the systems approach to tailings management including the systems that produce tailings, and the systems …
Copper tailings have a high concentration of copper while other contents are within the normal concentration ranges in soil. However, concentrations of heavy metals in iron ore tailings, red mud, and manganese tailings are within the normal concentration ranges in soil. ... Time required for different restoration technologies. Physical ...
Say a copper mine produced 1Mt of metal in 1999 at 90% recovery. The remaining 10% of copper, around 111kt, went to tailings. If the average copper price in …
Whether driven by regulatory compliances, tailings dam failure and water scarcity, mine tailings can well become a strong business case in the near future. Due to growing mining volumes, global tailings generation was estimated to total ~3.2 bn tons for copper and ~1.8 bn tons for iron in 2018.
In Proctor Standard (ASTM D698) geotechnical tests performed in certified laboratories, this moisture varies between 10% and 15% for copper mine tailings with a specific gravity of around 2.7 . Industrial-scale filtration equipment must be used to obtain the required moisture in the mine tailings.
for high tailings facilities in the deep valleys of the Andes in South America. 2.1 NET PRESENT VALUE ACCOUNTING APPLIED TO TAILINGS MANAGEMENT There is a commonly held perception that transporting tailings as a slurry to a facility is the most economic approach. However, to a large extent this tailings dewatering, density and …
To manage tailings sustainably, it's important to understand the processes and production from excavation to end-of-mine thoroughly as it allows to find the best solutions that meet both environmental and production requirements. Tailings Management Solutions combine practices of tailings dewatering, safe and sustainable …
The engineering characteristics of tailings are in most instances influenced by the degree of thickening and the method of deposition. It is therefore essential that while investigating the properties of tailings that the …
Increasing population levels, growing economies, rapid urbanization and changes in consumption patterns have increased the demand for raw materials such as base and precious metals, leading to growing concerns regarding their availability and the global efficiency of the mine supply chain. Mine tailings, consisting of process effluents …
A photograph of the Aguablanca nickel and copper mine tailings storage facility in Spain. Full size image. Papers Published in this Special Issue. ... One of the most generally required conditions for any mining operation is the "social licence." In this context, Ivan Carrasco (Spain) provided a paper on the Las Cruces copper mine in Spain. ...
1. Introduction. The annual output of copper tailings in Chengmenshan copper mine, Jiangxi Copper Co., Ltd is approximately 2.5 million tons [1].The fraction with a particle size larger than 38 μm can be utilized for concrete admixtures, siliceous materials in aerated concrete, glass-ceramics, and other building material products [2], …
tailings are commonly transported as a slurry of fine mineral particles and water, but may also be dewatered and transported using conventional earthmoving equipment. The …
1. Introduction. Due to the ever-growing demand for copper minerals, a significant amount of copper tailings have been produced as byproducts during the extraction of valuable copper minerals (Furnell et al., 2022; Rebello et al., 2021).According to the latest Global Tailings Review, approximately 14 billion tonnes of mineral tailings …
Tailings storage facilities at all our operations meet or exceed regulatory requirements, including permit and licence conditions and other relevant or appropriate requirements, …
Given the technical complexity and the significant capital investments required in the construction of tailings retreatment plants and depositing facilities, economies of scale are generally key. Normally, bigger is better, so to speak." Before tailings can be retreated or reprocessed, they must first be removed from the TSF in …
1. Introduction. Tailings are a solid waste by-product of mineral processing, and their disposal and retention should be carried out safely to protect the environment [1].Tailings ponds are the largest man-made facilities in mines, and represent large hazardous and pollution sources [2], [3].In the event of a tailings dam failure, the spilled …
Rapid economic development and increased demand for mineral products in China have led to extensive extraction of various ores, resulting in significant environmental challenges associated with the generation of industrial solid waste, particularly iron tailings. Despite being a major mining nation, China faces issues of wasteful practices, with …
Modern society around the world is notably based on mined rock materials that provide metals such as iron and copper, building materials such as aggregate and cement, minerals for chemical-based products such as fertilizers, energy minerals such as uranium and coal, and more. ... Development of new excavation equipment to allow …
The leaching-mineralization cycle technology using NH 4 Cl as the leaching solution meets the requirements for CO 2 removal and alkaline industrial waste residue treatment, while avoiding the significant consumption of chemical reagents in traditional mineralization. This method provides a pathway for producing vaterite using copper …
Ultrasound has been used to enhance flotation recovery of copper tailings. ... Schematic design of the Denver equipment and the flotation cell: (a) Outline of the Denver flotation equipment and the cell, side view; (b) Outline of the flotation cell, top view. ... more research is required to understand and properly control the applied pressure ...
The plant growth responses. According to plant height (Fig. 1a) and fresh weight (Fig. 1b), the optimum chemical ratio of conditioner and straw as the copper tailings amendments was determined.A single application of conditioner had greater effects on growth indexes of ryegrass than a single application of straw, and the effect of a mixture …
The awareness of tailings dam safety monitoring has widened due to the recent disasters caused by failures of such structures. The failure rate of tailings dams worldwide (i.e., the percentage of failed dams out of total) is estimated at 1.2%, compared to the 0.01% rate for traditional water dams. Most of the tailings dam monitoring …
1. Introduction. Worldwide, industrial-scale mining generates a large volume of waste in the form of tailings residues and waste rock. According to the UNEP 2019 report (UNEP, 2019), copper production alone generates around 4 billion tonnes of tailings annually that should be disposed of.This volume is predicted to increase as our metal …