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2024 Mining Terms Explained
Acidic precipitation - Snow and rain with a low pH caused by industrial gases released into the atmosphere.; Acidic rocks - Igneous rock with a high proportion of silica.; Acid mine drainage - Acidic run-off water from mine waste dumps and mill tailings ponds.; Adit - A horizontal opening into the side of a mountain or hill for access to a …
ادامه مطلبTreatment And Utilization Of Gold Mine Tailings
Our Recommendations on Tailings Management Gold production produces a lot of tailings, so there are a few things to keep in mind. First, the site selection of tailings ponds must be reasonable, which is the basis for the management and utilization of tailings ponds. Second, the exhausted tailings pond will be immediately overturned and reclaimed.
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Global-scale impact analysis of mine tailings dam failures: …
In order to evaluate the effect of seepage on stability of mine tailings dam, in this paper, a numerical model of a tailings dam in Yunnan province was established by using ANSYS software. It was focused on the dam seepage field analysis and the seepage-stability analysis, and on using the strength reduction method to derive the safety ...
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British Columbia Tailings failure at the HB mine near …
A short note to end a sunny day. There is a report of potential failure of a tailings dam on the news. Here is what is reported: The Regional District of Central Kootenay Emergency Operations ...
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Lessons from Tailings Dam Failures—Where to Go from …
Different regions worldwide have adopted various approaches to tailings management, as a result of the site settings and local practices as they have evolved. Tailings dam failures have continued to occur in both developing and developed countries, necessitating a range of tailings management approaches. These failures, while rare, …
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Catastrophic mass flows resulting from tailings impoundment failures
Tailings dam failures have received significant attention in recent years due to the catastrophic downstream consequences, as evidenced by the 2019 Feijão disaster in Brazil and numerous precedents. ... The primary impact zone (Zone 1) is defined by the extent of the main solid tailings deposit, which is characterized by remotely visible or ...
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Brazil dam: Startling pictures of Brumadinho collapse
A tailings dam at the mine failed at around 13:00 local time (15:00 GMT) on 25 January. ... The BBC's Julia Carneiro says liquefaction was the cause of a separate dam collapse three years ago in ...
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Combining Technologies for Real-time Tailings Dam …
Author: Rafael Cruz, Rogerio Weigert, Megan Hansen . Tailings dams that stor e mining by-products require continuous monitoring and analysis to maintain the safety of nearby communities and employees and protect the environment from exposure to mining waste. After disastrous dam breaches in Brazil in 2015 and 2019, companies in the mineral …
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Ballarat gold mine grinds to a halt as tailings dam fills
Gold production at the controversial Ballarat mine has ground to a halt amid concern the dams that hold "tailings" or waste are almost full, in the latest setback for the Singaporean owners of ...
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Managing Water to Minimize Risk in Tailings Storage Facility …
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 addition, a significant factor influencing the permitting and development of new mines, or the expansion of existing mines, is the limited availability of water in some mineral-rich countries, which has led to …
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Investor group turns up heat on mining tailings dam laggards
A group of investors managing more than $25 trillion said they plan to challenge mining companies that have not yet committed to a tailings dam best-practice standard and may vote against ...
ادامه مطلب
The Reprocessing and Revalorization of Critical Minerals in Mine Tailings
Mine tailings, the byproduct of mining and mineral processing, are increasingly mass produced as a result of increased demand for metals and minerals as well as the advancement in technology that allows for the exploitation of lower-grade ores. Lower grades can increase the volume of tailings that may contain new gangue …
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Tailings Dams: Where Mining Waste is Stored Forever
Kolontár, Hungary: In 2010, a tailings dam storing waste from bauxite mining collapsed due to heavy rain. The red toxic sludge from the dam spread over eight square km (more than three square ...
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A Comprehensive Review on Reasons for Tailings Dam Failures …
Consequently, the mining of mineral resources results in the production and accumulation of a large number of tailings, causing many problems with respect to mining, the environment, and the economy.
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Physical Modeling of Tailings Dams in China: A Review
Abstract To enhance the scientific nature and the reliability of physical modeling of tailings dams, the present developments and main achievements are discussed from four perspectives: dam break, downstream evolution, stability evaluation and protection tests. The experiment materials, methods of measurement and …
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Visualizing the Size of Mine Tailings
Visualizing the Size of Mine Tailings. On January 25th, 2019, a 10-meter tall wave traveling 120 km/h, washed 10 million m 3 of mining waste from the …
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A Comprehensive Review on Reasons for Tailings Dam …
The stress field and the seepage field in tailings reservoir change, leading to the instability of the dam. The following reasons explained for the resulting failure: (1) the seepage field directly induces instability of the tailings dam (seepage and internal erosion); (2) the instability of the tailings dam foundation (poor foundation conditions); (3) flooding that …
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Why coal ash and tailings dam disasters occur | Science
On 25 January 2019, the structure damming a pond filled with iron ore mining wastes (tailings) burst at Brumadinho, Brazil (1), causing a massive mudslide that killed at least …
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Jagersfontein Tailings Dam: Preliminary Survey Report Now …
The technical reports released after the Mariana dam failure in 2016 and Brumadinho dam failure in 2019 offer a glimpse into the complexity and magnitude of an investigation into a tailings dam ...
ادامه مطلبManagement of Tailings Facilities
CHAnGes in version 3.1 Version 3.1 is an update to the third edition of A Guide to the Management of Tailings Facilities (the Tailings Guide), released in November 2017, to reflect the second edition of MAC's Developing an Operation, Maintenance, and Surveillance Manual for Tailings and Water Management Facilities (the OMS Guide), …
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Mine tailings dams: Characteristics, failure, environmental …
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, …
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Recent practices in mine tailings' recycling and reuse
For example, mine tailings production in Chile is 1.6 million tons per day and it is estimated that 17.7 million tons of mine tailings are being generated from South African gold mines [2], [3]. Mining activities in China affect 33,000 hectares of land, 13% of which is due to tailings dams.
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Tailings dams
What is tailings dams monitoring? A tailings dam is a structure used in mining operations to store waste material, or tailings, that is produced during the processing of mineral …
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Global-scale impact analysis of mine tailings dam failures: …
The height of tailings dam according to primary product (n = 194). 3.2. Mine tailings dam footprints. ... Based on 20 copper mine tailings dam failures, we found …
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CHAPTER VIII CLOSURE AND RECLAMATION
Historically, tailings dam design has focussed on safely containing hydraulically placed tailings during mine operations. More recently, designing these tailings landforms to …
ادامه مطلبMine tailings dams: Characteristics, failure, environmental …
Section snippets Definition of tailings. Tailings are mixtures of crushed rock and processing fluids from mills, washeries or concentrators that remain after the extraction of economic metals, minerals, mineral fuels or coal from the mine resource (e.g., Fig. 1a; Hudson-Edwards et al., 2001, Younger and Wolkersdorfer, 2004, Lottermoser, 2007).
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Metal-mining pollution impacts 23 million people worldwide
An aerial view of a tailings dam storing waste from a copper-mining operation in Chile. By Victoria Gill. Science correspondent, BBC News ... BBC Future: How ending mining would change the world
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Tailings Dam Failures: A Review of the Last One Hundred …
number of tailings dam failure incidents in the world. Nonetheless, this article attempts to statistically analyze the available data on tailings dam failures by dividing the failure …
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Environmentally sustainable mining: The case of tailings …
The tailings dam at Mount Polley breached on August 4th, 2014, flushing some 25 million cubic meters of water, tailings solids and construction material into Polley Lake, Hazeltine Creek and thence into Lake Quesnel (see Map 4). 4 This is the largest tailings dam collapse in Canadian history and among the largest in the world during the …
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How to Prevent Flow Failures in Tailings Dams | Mine Water …
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, …
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