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Tailings in mining

  • Environmental Risks From Mine Tailings

    Aug 10, 2018· Tailings are a type of rock waste from the mining industry. When a mineral product is mined, the valuable portion is usually embedded in a rock matrix called ore.

  • Geotechnical Properties of Mine Tailings Journal of

    In order to maintain the normal mining operations, several methods are proposed for tailing disposal, including disposal of dry or thickened tailings in impoundments or free-standing piles, backfilling underground mine workings, subaqueous disposal, and the most common method, the disposal of tailings slurry in impoundments that involves the transport of tailing mass in slurry pipes to an impoundment

  • Slurry Piping Systems in Mining & Mineral Processing

    Jan 18, 2019· Typical piping systems encountered in the mining industry include tailings and paste systems. Tailings is a bi-product of the processing of ore. When the ore is processed, the valuable minerals are separated leaving the fine-grained waste material known as tailings. The tailings are usually pumped from the thickeners through a slurry

  • Lecture 4: Mining waste - SGU

    As the ore gets processed and the valuable minerals gets separated, a fine-grained mineral sand remains as waste, called tailings. The amount of tailings that remain is controlled by what grade the ore is, meaning the percentage of valuable minerals in the ore.

  • Mine tailings: How to effectively manage the risk

    Aug 19, 2020· Tailings should actually be addressed as part of overall water management, as water is the major risk to mining operations beyond just tailings. It requires effective management just to make the operation work cost-effectively.

  • What are the different types of tailings storage

    Jan 06, 2020· The mining industry generally agrees that one area where mining firms need to focus on is the management of tailings storage facilities. These materials are often toxic and can cause major environmental hazards if not properly contained and managed.

  • Mine Tailings - groundtruthtrekking

    Dec 15, 2010· Mine tailings are the ore waste of mines, and are typically a mud-like material. Worldwide, the storage and handling of tailings is a major environmental issue. Many tailings are toxic and must be kept perpetualy isolated from the environment.

  • Environmental Risks From Mine Tailings

    Aug 10, 2018· Tailings are a type of rock waste from the mining industry. When a mineral product is mined, the valuable portion is usually embedded in a rock matrix called ore.

  • The Tailings Center - Mining Engineering

    Historically, these tailings engineers have been geotechnical, mining, or geological engineers, who receive specialized on-the-job training in mine waste management on the job site.

  • New Minerals Capture CO2 in Mine Waste - Advancing Mining

    Mar 19, 2019· Tailingsmineral waste productsare a major pollutant produced by mining operations. Because tailings originate in slurry form, they may be dumped in or near water, contaminating the water and destroying aquatic life. Tailings also can be transported by wind or water to contaminate other areas.

  • Management of Tailings Facilities - Home - The Mining

    Tailingsare a byproduct of mining, consisting of the processed rock or soil left over from the separation of the commodities of value from the rock or soil within which they occur.

  • Reclaiming tailings sustainability Global Mining Review

    The standard tailings processing model takes time, but this solution successfully reduced tailings residence time with a total solution realised through Weir Minerals equipment. Multiflo® pump barges mounted with Hazleton® submersible slurry pumps extract the target fluid tailings that feed high-powered, land-based, Weir re-locatable pump houses.

  • Mine Tailings - an overview ScienceDirect Topics

    Mine tailings are the finely ground residue from ore extraction. The grain size of the tailings depends on the nature of the ore and the milling process. Size measurements (Robertson, 1994) of tailings from four mines in Ontario, Canada, indicated the tailings materials to be predominantly silt and fine to medium sand with <10% clay content.

  • The dangers of tailing dams on the planet - Clean Mining

    Nov 25, 2019· Most mines opt for the cheaper upstream method where the tailings themselves are piled up, with more tailings added to increase the height of the dam as mining operations continue. Dams built using the upstream method are more likely to collapse because, once dried, the tailings used to create the barrier become less dense and more sand

  • LMN and the Global Tailings Review - London Mining Network

    Jan 13, 2020· After the catastrophic tailings dam collapse at Brazilian mining company Vales iron ore mine at Brumadinho on 25 January 2019, the Church of England and Swedish state pension funds started to gather data on existing mine waste tailings dams by sending out a questionnaire to approximately 700 mining companies in April.. They also started a closed trialogue with mining trade

  • Tailings & Mine Waste Management Solutions Weir

    Tailings is a critical consideration for the design of slurry transportation systems. Mine operators are continually looking for solutions for the safe transport, storage and disposal of tailings, as well as converting tailings into construction materials and mine backfill.

  • Operator of Southeast Alaska mine seeks to reroute road

    Oct 15, 2020· The operator of the largest silver mine in the country is asking the U.S. Forest Service to approve a tailings storage expansion plan that would allow the mine to produce into the 2030s.

  • Treasure from trash: how mining waste can be mined a

    Jun 28, 2016· Overseas, mine tailings reprocessing projects are planned as far afield as South Africa and Bolivia. With technology improving just as the mining

  • How to handle mine tailings safely and sustainably

    Jul 19, 2019· Mining involves the processing of mined ore to separate valuable minerals, leaving behind huge volumes of waste tailings. Driven by mining volumes, globally generated tailings are

  • Global Mining Guidelines Group Tailings

    The Investor Mining & Tailings Safety Initiative is governed through a Steering Committee Chaired by the Church of England Pensions Board and the Swedish Council of Ethics of the AP Funds. This has led to a number of interventions. The first was a call for a new independent and publicly accessible international standard for tailings dams based

  • Tailings - Wikipedia

    Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction (gangue) of an ore. Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is

  • Global Tailings Portal

    The Global Tailings Portal, launched in January 2020, is a free, searchable database with detailed information on more than 1,800 mine tailings dams around the world. It enables users to sort data about tailings dams by location, company, dam type, height, volume, and risk, among other factors.

  • Precious Metals Reclamation Mining Company

    Apache Mill Tailings USA, Inc. is a precious metals mining company specializing in gold, silver, copper and high value, rare earth minerals reclamation recovery. To maximize profits, accelerate project success and reduce risk, we work with above ground mine and ore mill tailings

  • From Tailings to Treasure? Miners Make - Advancing Mining

    As a previous blog, Mining and the Environment: What Happens When A Mine Closes? explains, tailingsmineral waste productsare a major pollutant. Tailings may be dumped in or near water or transported by wind or water to contaminate the surrounding area. Mine sites typically manage tailings by constructing ponds secured by dams.

  • Mine tailings reclamation project improves water quality

    McLaren mine tailings mine drainage. Unpublished report. Federal Water Quality Administration, Taft Water Research Center, Cincinnati, Ohio, USA. Hren, M., C. Chamberlain, and F. Magilligan. 2001. A combined flood surface and geochemical analysis of metal fluxes in a historically mined region: A case study from the New World Mining District

  • New Global Industry Standard on Tailings Management aims

    Aug 05, 2020· Strengthening current practices in the mining industry by integrating social, environmental, local economic and technical considerations, the Standard covers the entire tailings facility lifecycle from site selection, design and construction, through management and monitoring, to closure and post-closure.

  • Raising the Standard in tailings management - Mining Magazine

    Mining companies, affected communities and investors welcomed the launch last year of the Global Industry Standard on Tailings Management (the Standard) in the wake of the Brumadinho disaster. Initial take-up has also been impressive, but some critics say it could be more rigorous and have a stricter compliance timeline.

  • Precious Metals Reclamation Mining Company

    Apache Mill Tailings USA, Inc. is a precious metals mining company specializing in gold, silver, copper and high value, rare earth minerals reclamation recovery. To maximize profits, accelerate project success and reduce risk, we work with above ground mine and ore

  • Environmental Risks of Mining

    ISL mining has environmental and safety advantages over conventional mining in that the ore body is dissolved and then pumped out, leaving minimal surface disturbance and no tailings or waste rock (World Nuclear Association, 2012).

  • The Luming Mine tailings accident in China - The Landslide

    Mar 31, 2020· The Luming Mine tailings accident in China. Unfortunately another significant tailings accident occurred on 28 March 2020, this time at the Luming Mine in Heilongjiang Province in NE China (location: 47.361, 128.559).. The release was reported on Xinhua News which is in itself interesting because there is a perception that previous tailings accidents might have been covered up.

  • Tailings facility failures in the global mining industry

    Tailings facilities are physically nested within a mining complex and designed to handle the waste remnants of the mining process (Burritt & Christ, 2018). They have notuntil recentlybeen at the forefront of global policy initiatives about corporate transparency or public disclosure.

  • Treatment of tailings in mining operations Industrial

    Jun 08, 2020· Wastewater produced by the mining industry is also known as tailings. Tailings contain waste from the extraction processes, equipment washing water and the refining process. It is a sludge-like waste that contains a mixture of fine gangue particles, chemicals and water; and in many cases is stored in large facilities called tailings dams or ponds.

  • Mining tailings - definition of Mining tailings by The

    Mining tailings synonyms, Mining tailings pronunciation, Mining tailings translation, English dictionary definition of Mining tailings. n. 1. tailings Refuse or dross remaining after ore has been processed. 2. Architecture The portion of a tailed beam, brick, or board inside a wall.

  • Geotechnical Properties of Mine Tailings

    ration facility, and two kinds of tailings were generated, i.e., coarse tailings from the bottom and fine tailings from the overflow of the hydrocyclone separation facility. The concentrations of the pro-duced coarse iron and fine iron tailings from the Yuhezhai iron mine were about 6570 and 70 wt%, respectively, and the concen-

  • Tailings Guide - The Mining Association of Canada

    Tailings Guide implementation checklist, Version 3.1 For new tailings facilities and for facilities undergoing mine life extensions, the Tailings Guide recommends using a rigorous approach to selection of the most appropriate tailings management technology and facility location.

  • Mine Tailings Restoration University of Arizona News

    Feb 10, 2003· Mine tailings, the waste material left over from processing ore, are essentially tons of crushed rock with zero percent organic matter. Deposited in ten-foot "lifts," they are extruded like a thick toothpaste that dries out, according to Ian Pepper, director of the W-Q-C. Thousands of these raised, barren piles dot the Southwest.

  • Safety First: Guidelines for Responsible Mine Tailings

    Jun 29, 2020· Tailings facilities, which contain the processed waste materials generated from mining metals and minerals, are failing with increasing frequency and severity. Tailings World Map from Safety First Current industry standards, the Global Industry Standard on Tailings Management released in 2020, do not go far enough to adequately protect

  • What are tailings in mining? - Quora

    Feb 05, 2021· Tailings In Mining Concentration is the process of extracting the economic product from the crushed and ground ore, the waste from this process is the tailings.

  • Rare Earth Reclamation Mining Company

    Apache Mill Tailings USA, Inc. is a precious metals mining company specializing in gold, silver, copper and high value, rare earth minerals reclamation recovery. To maximize profits, accelerate project success and reduce risk, we work with above ground mine and ore mill tailings deposits.

  • Mine tailings: reprocess, recover & recycle The

    Sep 13, 2019· Reprocess tailings. Really? Yes, really. If the technology exists today to remove up to 90% of water from mine tailings and, if a mining company is going to make that investment anyway to secure its future operations, then frankly, it is irresponsible not to consider reprocessing the tailings that currently sit in its TSFs.

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