The article explains that the tailings pond was built in 1976. Over the following years, its earth dam was raised several times by a few metres, as is customary in ore mining, to create additional ...
One of the critical challenges facing the mining sector is related to the prevention and mitigation of catastrophic incidents associated with its tailing dams. As mining tailings are very heterogeneous and field characterization is expensive and complex, geotechnical properties of these materials are largely unknown. The seismic …
The prototype of the tailings dam model is an iron ore tailings dam located in Canton, a rainy coastal city in China. The Cantonese tailings dam (CTD) is an upstream tailings dam with a rockfill starter dam. The elevation of the dam is from 280.0 m to 354.0 m in design, with a total height of 97 m.
It has been found that 31.25% of iron ore mine tailings dams collapsed due to slope instability, 18.75% due to overtopping, 6.25% due to liquefaction-related instabilities, 6.25% due to foundation ...
To set the scene, we first describe the characteristics of tailings and of construction of tailings dams, and the common causes of their failure. We conclude …
In the past, many failures of these iron ore mine tailings storage facilities/dams have been reported worldwide in different forms. In this paper, an attempt has been made to review the failure modes, mechanisms and possible solutions to enhance the stability and safety of iron ore tailings dams. A comprehensive investigation has …
Keywords: iron ore tailings, mining waste, iron oxide, technological application. 1. Introduction. ... dams since 2020 due to federal law (number 14066, enacted . on September 30, ...
In the past, many failures of these iron ore mine tailings storage facilities/dams have been reported worldwide in different forms. In this paper, an attempt …
Indigenous Water and Drought Management in a Changing World. Andréa Zhouri, Walison Vasconcelos Pascoal, in Current Directions in Water Scarcity Research, 2022. Abstract On November 5, 2015, the iron ore tailings dam known as the Fundão Dam, owned by the Samarco Mining Inc. Company, a joint venture involving Vale S. A. …
With advent of novel technologies, mining companies are now figuring out ways to extract valuable metals from tailings. In gold, copper sulfide and iron ore tailings, the potential of extracting minerals is an opportunity. Reprocessing tailings to collect the valuable minerals can be a cost-effective approach compared to processing material.
Tailings are a mixture of coarse-grained and fine-grained particles of ore, including crushed rock, processed water, extraction process additives, and a small amount of valuable minerals (Vick ...
The impacts of failures are severe. It is estimated that between 1961 and 2019, 2375 people lost their lives due to a tailings dam failure. In 2019, a catastrophic collapse of the tailings dam at the …
The heights for copper mine tailings dams that failed ranged from 5 to 140 m, with median and average heights of 32.5 and 36.2 m, respectively. We noticed a similar type of distribution in the case of iron mine tailings dam heights in which the median and average heights of the failed dams were 31 m and 41.9 m, respectively.
Historically, tailings dam design has focussed on safely containing hydraulically placed tailings during mine operations. More recently, designing these tailings landforms to be …
In order to obtain the metals and other minerals needed for industrial processes, fertilizers, homes, cars, and other consumer products, large quantities of rock are mined, crushed, pulverized, and processed to recover …
With advent of novel technologies, mining companies are now figuring out ways to extract valuable metals from tailings. In gold, copper sulfide and iron ore tailings, the potential of extracting ...
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 discussion of tailings dam construction is found in the SME Technical Paper "An Introduction to Tailings Facilities. i " Background. What are Tailings? Tailings are a by-product of mining. After ore containing an economically-recoverable commodity is mined from the earth, that commodity is extracted in a processing plant or mill.
Iron ore tailings (IOTs) are a form of solid waste produced during the beneficiation process of iron ore concentrate. In this paper, iron recovery from IOTs was studied at different points during a process …
Tailings dam design should be based on a complete understanding of the foundation geology and soils, through …
The intent of this paper is to provide overview context to allow broader understanding of conventional tailings dam failure mechanisms. The research leverages global knowledge, experience, and data collection and interpretation for the safe and controlled management of the geotechnical stability of a tailings storage facility. The …
1. Introduction. ys been an important issue. Such tailings may lead to the contamination of the lith-osphere, and hydrosphere. For instance, the acid drain-age, the transfer of …
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, …
Fibre-optic cables can be used to monitor tailings dams. Credit: Janelle Lugge/Shutterstock. Another company deploying terrestrial monitoring systems is Mineração Morro do Ipê (MMI), a Brazilian mining company managing the Ipê and Tico-Tico mines and iron ore processing units in the Serra Azul region of Brazil.
Experts believe mine tailings could provide a new source of metals and minerals critical to the energy transition, while also cleaning up the environment. ... as the breaching of the Brumadinho dam disaster, which killed 270 people at the Vale Córrego do Feijão iron ore mine in Brazil, demonstrated in the extreme.
Responsibly managing waste from mining operations is essential, as is being transparent with our stakeholders about our tailings facilities and how we manage them. We strive to protect the health and safety of people, and to protect the surrounding environment, in the best way we can, everywhere we ...
They consist of ground rock, unrecoverable and uneconomic metals, chemicals, organic matter and effluent from the process used to extract the desired products from the ore. Tailings are stored in tailings storage …
ABSTRACT Mine tailings dams are surface impoundment structures consisting of raised embankments that are built to contain mine tailings and mill effluents. In the past, many failures of these iron ore mine tailings storage facilities/dams have been reported worldwide in different forms. In this paper, an attempt has been made to review …
Mining operations degrade natural ecosystems by generating a large quantity of mine tailings. Mine tailings remain in dams/open ponds without further treatment after valuable metals such as iron ore have been extracted. Therefore, rehabilitation of tailings to mitigate the negative environmental impacts is of the utmost …
The mining industry produces large amounts of tailings which are disposed of in deposits, which neglects their potential value and represents important economic, social and environmental risks. Consequently, implementing circular economy principles using these unconventional geomaterials may decrease the wide-ranging impacts of raw …
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