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

    Treasure from trash: how mining waste can be mined a

    Jun 28, 2016 · Treasure from trash: how mining waste can be mined a second time environmentally conscientious management strategies to be developed to handle the lowervalue byproducts. mine tailings

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  • Liquefaction Susceptibility Evaluation of Mine Tailings

    Liquefaction Susceptibility Evaluation of Mine Tailings

    mine tailings. Data Used in the Susceptibility Assessment Data Used in the Susceptibility Assessment Method of deposition, geologic age, and stress history of the deposit are typical characteristics related to the susceptibility to liquefaction. Data used in the assessment are associated with a mine tailings

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  • A Multiple Accounts Analysis for Tailings Site Selection

    A Multiple Accounts Analysis for Tailings Site Selection

    negative impacts, or value ''tradeoffs'', must be understood, transparent and easily communied. This paper describes how the general methodology of "Multiple Accounts Analysis" may be adapted, specifically for tailings site selection, during mine planning and the project approval process.

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  • STANDARD GUIDANCE (COP 37) Tailings and Waste Rock

    STANDARD GUIDANCE (COP 37) Tailings and Waste Rock

    to allow tailings to be placed below the water surface. This method can be used to prevent oxidation of sulphidic tailings and related acid drainage. Submarine tailings disposal is sometimes used in very sitespecific conditions, for example where land based disposal would cover lands with very high biodiversity, economic or cultural value, for

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  • Tailings Wikipedia

    Tailings Wikipedia

    Research at the Porgera Gold Mine is focusing on developing a method of combining tailings products with coarse waste rock and waste muds to create a product that can be stored on the surface in genericlooking waste dumps or stockpiles. This would allow the current use of rivering disposal to cease. Considerable work remains to be done.

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  • How to generate value from tailings with reprocessing to

    How to generate value from tailings with reprocessing to

    A lot of older tailing facilities have impressive residual mineral values, which could provide opportunities to help in environmental reclamation, while at the same time, generate additional revenue. Read how mine waste can be turned into value.

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  • Mine Tailings, Tailings in Mining, Gold Tailings

    Mine Tailings, Tailings in Mining, Gold Tailings

    Gold tailings: Xinhai usually use allslime cyanide process and carboninpulp process to recover the gold from gold tailings. As for the gold tailings cyaniding, xinhai will apply the method of drytailing stacking. That is, though the process of classifying and dewatering, at the same recycling the water recourses to remove the cyanide in it.

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  • Technology of Dams and Tailings Disposal : Instituto

    Technology of Dams and Tailings Disposal : Instituto

    Center line method. System with an arrangement similar to the upstream method. The tailings are discharged from the crest of the starter dam. The construction progresses in a similar way, with rises with successive dams, but maintaining the axis of symmetry of the dam constant. This is the safest method for building tailings dams.

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  • Alternative Uses of Tailings Weir Group

    Alternative Uses of Tailings Weir Group

    Apr 23, 2019 · The safe management and storage of tailings is paramount for any mine operation," says Job Kruyswijk, Tailings Process Specialist for Weir Minerals. The traditional means of tailings disposal is typically an impound method, often stored in a constructed dam in diluted form.

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  • Valuation (finance) Wikipedia

    Valuation (finance) Wikipedia

    In finance, valuation is the process of determining the present value (PV) of an asset.Valuations can be done on assets (for example, investments in marketable securities such as stocks, options, business enterprises, or intangible assets such as patents and trademarks) or on liabilities (e.g., bonds issued by a company). Valuations are needed for many reasons such as investment analysis

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  • Arsenic in Historic Gold Mine Tailings Nova Scotia

    Arsenic in Historic Gold Mine Tailings Nova Scotia

    Arsenic and Gold Mine Tailings FAQ What is arsenic? Arsenic is a natural element that can be found distributed throughout the Earth''s crust. It is found in arsenopyrite, the same rock in which gold is often embedded. Many areas of Nova Scotia have elevated arsenic levels, not just the gold mine tailing sites.

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  • Geotechnical Properties of Mine Tailings Journal of

    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 freestanding piles, backfilling underground mine workings, subaqueous disposal, and the most common method, the disposal of tailings slurry in impoundments that involves the

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  • STANDARD GUIDANCE (COP 37) Tailings and Waste Rock

    STANDARD GUIDANCE (COP 37) Tailings and Waste Rock

    to allow tailings to be placed below the water surface. This method can be used to prevent oxidation of sulphidic tailings and related acid drainage. Submarine tailings disposal is sometimes used in very sitespecific conditions, for example where land based disposal would cover lands with very high biodiversity, economic or cultural value, for

    Get Price
  • Tailings.info What are tailings? Their nature and production

    Tailings.info What are tailings? Their nature and production

    Tailings consist of ground rock and process effluents that are generated in a mine processing plant. Mechanical and chemical processes are used to extract the desired product from the run of the mine ore and produce a waste stream known as tailings.

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  • Tailings (Mines and Residue) GHD

    Tailings (Mines and Residue) GHD

    GHD has gained a high level of Australian and global recognition for our safe, cost effective, practical and innovative methods in tailings storage design, management and construction supervision. From alumina to zinc, our team has a wide range of experience in dealing with both metalliferous and nonmetalliferous tailings.

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  • Mining Valuation Techniques P/NAV, P/CF, EV/Resource

    Mining Valuation Techniques P/NAV, P/CF, EV/Resource

    Tailings resulting from former mining activities could become such an alternative source by transforming waste to value. An advantage compared to conventional sources, which often require great

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  • New Technologies on Mine Process Tailing Disposal

    New Technologies on Mine Process Tailing Disposal

    New Technologies on Mine Process Tailing Disposal Bascetin A., Tuylu S., Adıguzel D., and Ozdemir O. Mining Engineering Department, Engineering Faculty, Istanbul University, Istanbul 34413, Turkey Abstract: Tailings are formed as a result of mine processing. When these ta ilings are left in an environment in an inappropriate manner,

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  • Mine Tailings Disposal Methods

    Mine Tailings Disposal Methods

    Table of ContentsMining Coal Tailings DisposalOverburdenWaste RockCoal PreparationPlant RefuseTailings Disposal of Mining Metal Ores & Industrial MineralsOverburdenWaste RockMill Tailings As discussed previously, the primary types of solid wastes generated by the mining industry are overburden and waste rock from surface mining, waste rock from underground mining, bulk tailings

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  • Mine Tailings Fundamentals:Mine Tailings Fundamentals

    Mine Tailings Fundamentals:Mine Tailings Fundamentals

    Mine Tailings Fundamentals:Mine Tailings Fundamentals: • Disposal method Mine Tailings Fundamentals: Part 1 EPA CLU‐IN Webinar May 19, 2015 17. Mine Tailings – Geochemical • Calculate the value of the same quantities under the most unfavourable conditions compatible with the available data concerning the subsurface conditions.

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  • Mine Waste Transfer and Disposal Methods Mine Tailings

    Mine Waste Transfer and Disposal Methods Mine Tailings

    Mine Tailings. Tailings are finely ground rocks and other mineral waste as a result of mineral processing. Due to the way minerals are processed, tailings can contain concentrations of processing chemicals. This can make mine tailings an environmental

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  • New approaches for extracting and recovering metals from

    New approaches for extracting and recovering metals from

    May 15, 2017 · Exposure of mine tailings to both oxygen and water facilitates the (microbiallyalysed) oxidative dissolution of the sulfide minerals they contain, generating acidic waste waters that contain elevated concentrations of dissolved metals and sulfate. Acid mine drainage (AMD) is a widelyreported environmental pollutant, with global distribution.

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  • SAFE TAILINGS DAM CONSTRUCTIONS

    SAFE TAILINGS DAM CONSTRUCTIONS

    SAFE TAILINGS DAM CONSTRUCTIONS Swedish Mining Association EUROPEAN COMMISSION DIRECTORATEGENERAL • 16.20 16.40 Preparations for the BREFnotes on mine tailings inclusions. Nils Eriksson SMA • 16.40 Discussions How to achieve those aims probably requires different methods in different societies. In this

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  • Method for capping mine waste and tailing deposits

    Method for capping mine waste and tailing deposits

    Dec 21, 1999 · A method for providing a composite capping cover for maintaining the surface of a sulphide bearing tailing and mine waste containing deposit moist thereby substantially eliminating oxidation of the sulphidic particulate in the deposit and the formation of heavy metal salts.

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  • New Technologies on Mine Process Tailing Disposal

    New Technologies on Mine Process Tailing Disposal

    New Technologies on Mine Process Tailing Disposal Bascetin A., Tuylu S., Adıguzel D., and Ozdemir O. Mining Engineering Department, Engineering Faculty, Istanbul University, Istanbul 34413, Turkey Abstract: Tailings are formed as a result of mine processing. When these ta ilings are left in an environment in an inappropriate manner,

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  • Technical Report: Design and Evaluation of Tailings Dams

    Technical Report: Design and Evaluation of Tailings Dams

    limited in depth: a comprehensive guide to the design and evaluation of tailings impoundments would incorporate most of the materials in a number of examinations of tailings dam engineering and environmental performance, including those in texts by Vick

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  • Studies on flocculation of fine mineral tailings using

    Studies on flocculation of fine mineral tailings using

    STUDIES ON FLOCCULATION OF FINE MINERAL TAILINGS USING NOVEL POLYACRYLAMIDE BASED POLYMER By SIMIN KHATIBI A THESIS Presented to the Faculty of the Graduate School of the MISSOURI UNIVERSITY OF SCIENCE AND TECHNOLOGY In Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE IN MINING ENGINEERING. 2016 Approved by Dr. Lana Alagha

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  • Valuation (finance) Wikipedia

    Valuation (finance) Wikipedia

    See: Patent valuation #Optionbased method. Valuation models can be used to value intangible assets such as for patent valuation, but also in copyrights, software, trade secrets, and customer relationships. Since few sales of benchmark intangible assets can ever be observed, one often values these sorts of assets using either a present value

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  • Types, appliions of Tailings Dams. Introduction example

    Types, appliions of Tailings Dams. Introduction example

    Subject: Types, appliions of Tailings Dams. Introduction example Syncrude Tailings Dam. In my presentation I would like to introduce main operatings, types and appliions Tailings Dams. According to their functions, dams serve three main purposes: storage, diversion, or detention. Tailings dams is ones of storage dams. This is a very important development for the maritime

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  • Studies on flocculation of fine mineral tailings using

    Studies on flocculation of fine mineral tailings using

    STUDIES ON FLOCCULATION OF FINE MINERAL TAILINGS USING NOVEL POLYACRYLAMIDE BASED POLYMER By SIMIN KHATIBI A THESIS Presented to the Faculty of the Graduate School of the MISSOURI UNIVERSITY OF SCIENCE AND TECHNOLOGY In Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE IN MINING ENGINEERING. 2016 Approved by Dr. Lana Alagha

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  • Phytoremediation of mine tailings in temperate and arid

    Phytoremediation of mine tailings in temperate and arid

    Phytoremediation is an emerging technology for the remediation of mine tailings, a global problem for which conventional remediation technologies are costly. There are two approaches to phytoremediation of mine tailings, phytoextraction and phytostabilization. Phytoextraction involves transloion of heavy metals from mine tailings to the plant shoot biomass followed by plant harvest, while

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  • Mine Tailings Fundamentals:Mine Tailings Fundamentals

    Mine Tailings Fundamentals:Mine Tailings Fundamentals

    Mine Tailings Fundamentals:Mine Tailings Fundamentals: • Disposal method Mine Tailings Fundamentals: Part 1 EPA CLU‐IN Webinar May 19, 2015 17. Mine Tailings – Geochemical • Calculate the value of the same quantities under the most unfavourable conditions compatible with the available data concerning the subsurface conditions.

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  • Tailings Retreatment: The Next Revenue Source for the

    Tailings Retreatment: The Next Revenue Source for the

    Tailings deposited into dams are in the form of a slurry. In 1998, a tailings dam failed at the Los Frailes zinc mine in Spain, causing more than one billion gallons of acidic, heavy metalladen sludge to spill into the surrounding area, eventually making its way into the Guadiamar River. The spill decimated the area, resulting in massive

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  • Life cycle cost estimation and environmental valuation of

    Life cycle cost estimation and environmental valuation of

    The authors used NPV to compare each option for the disposal of coal mine tailings and, subsequently, to determine the most costeffective strategy for the mine site. 2.2.2. Environmental valuation method 2.2.2.1. Valuation. A mining project evaluation is not only based on its financial profitability but also its sustainable development

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  • Liquefaction Susceptibility Evaluation of Mine Tailings

    Liquefaction Susceptibility Evaluation of Mine Tailings

    mine tailings. Data Used in the Susceptibility Assessment Data Used in the Susceptibility Assessment Method of deposition, geologic age, and stress history of the deposit are typical characteristics related to the susceptibility to liquefaction. Data used in the assessment are associated with a mine tailings

    Get Price
  • Geotechnical Properties of Mine Tailings Request PDF

    Geotechnical Properties of Mine Tailings Request PDF

    Geotechnical Properties of Mine Tailings. the value of C c /C k increased from 0.137 to 0.868, and the value of U u decreased from 0.969 to 0.834 correspondingly, indiing that the mag

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  • Mine Tailings Deposition Practices, Liquefaction Potential

    Mine Tailings Deposition Practices, Liquefaction Potential

    SY.NOPSXS: Typical mine tailings characteristics resulting from different deposition practices are discussed. The potential for liquefaction of the tailings during seismic events is presented. A discussion of how the tailings deposition method can affect the liquefaction potential is included.

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  • Tailing Disposal Methods and Tailings Dam Construction Design

    Tailing Disposal Methods and Tailings Dam Construction Design

    Tailings Dam Construction Design of slime is likely to slide and cause the dam to break away. The procedure usually adopted in such cases is to separate the tailing into coarse sand and fines in a classifier, and to use the coarse product to build up the wall the remainder of the pulp is discharged into the interior of the dam.

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  • A Review of Nchanga Tailings Dam Operations and Seasonal

    A Review of Nchanga Tailings Dam Operations and Seasonal

    Aug 04, 2016 · The Nchanga tailings dam, a reservoir of mine waste from Konkola Copper Mines (KCM) operations in Zambia, discharges its effluent into the local Muntimpa stream. The Muntimpa stream, a possible source of drinking and domestic water for the local population, flows into Mwambashi stream which subsequently discharges into Kafue river. The Kafue river is a significant support of economic

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  • Geotechnical Properties of Mine Tailings Journal of

    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 freestanding piles, backfilling underground mine workings, subaqueous disposal, and the most common method, the disposal of tailings slurry in impoundments that involves the

    Get Price
  • mine waste and tailings remedial and recycling

    mine waste and tailings remedial and recycling

    These tailing are stored and handled by various methods such as ponds, dams, dry piled or filled back to where it came. In todays mining operations the storage and handling of tailings is a big issue. The big problem for engineers and mine planners is always the same. Where and how to dispose of tailings.

    Get Price
  • Mine Tailings groundtruthtrekking.org

    Mine Tailings groundtruthtrekking.org

    Mine tailings'' size and composition depends on the mining method. For hardrock metal mines, tailings are usually a very fine mud or powder, which is left over after ore is crushed and valuable minerals are extracted from it. Tailings may also contain chemicals used for mineral extraction.

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  • Tailings From Concept to Closure Training DVD ACG

    Tailings From Concept to Closure Training DVD ACG

    May 24, 2016 · This training DVD will provide guidance to personnel involved in the management and operation of tailings storage facilities that will facilitate the adoption of accepted best practices for the

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  • Best Practices for Tailings Dam Design Klohn Crippen Berger

    Best Practices for Tailings Dam Design Klohn Crippen Berger

    Best Practices for Tailings Dam Design. Based on lessons learned from the investigations of the recent Mount Polley and Fundão tailings dam failures in British Columbia, Canada and Minas Gerais, Brazil respectively, government agencies, regulatory bodies and industry are improving how tailings dams are designed, built and maintained.

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  • Mine Tailings, Tailings in Mining, Gold Tailings

    Mine Tailings, Tailings in Mining, Gold Tailings

    Gold tailings: Xinhai usually use allslime cyanide process and carboninpulp process to recover the gold from gold tailings. As for the gold tailings cyaniding, xinhai will apply the method of drytailing stacking. That is, though the process of classifying and dewatering, at the same recycling the water recourses to remove the cyanide in it.

    Get Price
  • Assessing Risks of Mine Tailing Dam Failures

    Assessing Risks of Mine Tailing Dam Failures

    tailings, also obtained from empirical relationships. 3) The extent of the potential damage in case of failure is used in the computation of a hazard rating index (H R), which depends on the affected population, land use, and proximity to high conservation value areas.

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  • Tailings & Mine Waste Management Hatch Ltd

    Tailings & Mine Waste Management Hatch Ltd

    Tailings and Mine Waste Management. Challenges Competing factors such as cost, the environment, safety, and technical viability are at the forefront of thinking when today''s mining organizations are investing in new tailings systems or retrofitting existing ones.

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  • Arsenic in Historic Gold Mine Tailings Nova Scotia

    Arsenic in Historic Gold Mine Tailings Nova Scotia

    Arsenic and Gold Mine Tailings FAQ What is arsenic? Arsenic is a natural element that can be found distributed throughout the Earth''s crust. It is found in arsenopyrite, the same rock in which gold is often embedded. Many areas of Nova Scotia have elevated arsenic levels, not just the gold mine tailing sites.

    Get Price
  • mine waste and tailings remedial and recycling

    mine waste and tailings remedial and recycling

    These tailing are stored and handled by various methods such as ponds, dams, dry piled or filled back to where it came. In todays mining operations the storage and handling of tailings is a big issue. The big problem for engineers and mine planners is always the same. Where and how to dispose of tailings.

    Get Price
  • Tailings Impoundment Stabilization Using Ground

    Tailings Impoundment Stabilization Using Ground

    Tailings Sands Dewatering Pumping Trial Program – Positive Results Dewatering wells yielded flows above expectations Wick drains were observed to accelerate the development of the drawdown cone and prevent perched water tables The sandy side of the tailings impoundment has since been designated as a makeup water source for the mine

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  • From Tailings to Treasure? Miners Make Money Reprocessing

    From Tailings to Treasure? Miners Make Money Reprocessing

    New technology allows it to recover up to 40% of the gold left in particle form in tailings. DRD Gold extracted 33,600 ounces of gold, worth nearly US$40 million, in the last quarter of 2013. Mintails, a mine tailings processor, has developed new technology to process 350,000 tons of slimes from its extensive tailings resources.

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