• US5636942A Mineral processing tailings disposal Google

    process is disclosed for disposing mineral processing tailings. The process includes the step of treating the tailings to produce a flowable paste including a mass comprised of particles at least approximately 15% of which are less than 20 microns in diameter. The process further includes the step of preparing an unconfined ground surface tailings disposal site by grading a selected site to

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  • Tailings Retreatment The Next Revenue Source for the

    or the material remaining after a valuable component has been separated from the gangue, have long plagued the mining industry with management costs, liability risks, and disposal challenges. Due to their toxicity, tailings pose a number of risks if not properly managed.

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  • TalkTailings

    management has been poor in the past, but is presently a substantial part of mining costs and activities. I agree that not all tailings have been well managed, and there are certainly huge concerns that areas such as oil sands tailings still are of major concern however I think the article conveys that.

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  • (PDF) minerals A New Procedure for Deep Sea Mining

    Deep sea mining tailings disposal is a new environmental challenge related to water pollution, mineral crust waste handling, and ocean biology. The objective of this paper is to propose a

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  • Technology of Dams and Tailings Disposal Instituto

    Vale and ITV are already working intensively on the search and development of technologies that make tailings reuse a reality. This is because the tailings deposited in dams have the same and in some cases, even higher content than the raw mineral that is mined in other mines.

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  • Mineral Processing Wastes Material Description User

    processing wastes are referred to in the Resource Conservation and Recovery Act (RCRA) as wastes that are generated during the extraction and beneficiation of ores and minerals. These wastes can be subdivided into a number of categories waste rock, mill tailings

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  • FI20185976A1 Reducing The Need For Tailings Storage Dams

    invention relates to a process for recovering value metals from ore (50) configured such as to substantively reduce or eliminate the need for a tailings storage facility. This object is achieved through an integrated processing system designed to enhance the ratio of sand residue from coarse flotation (62) to the amount of tailings arising from fine flotation (72), and then blending a

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  • Mining Waste Special Wastes Wastes US EPA

    also proposes two schedules for completing the Mining Waste Report to Congressone for completing the report on extraction and beneficiation wastes and one for promulgating a reinterpretation for mineral processing waste. October 31, 1983EPA misses the statutory deadline for submitting its mining waste Report to Congress.

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  • Mine Tailings Deposition Practices, Liquefaction Potential

    method and tailings disposal practices must be compatible. Tailings are the waste product resulting from the milling and beneficiation of ore for mineral extraction. The tailings consist of rock particles which have been crushed and ground to sand, silt and clay sizes. Typical tailings

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  • Tailing Disposal Methods and Tailings Dam Construction Design

    there is seldom enough ground available on which the tailing of a flotation plant can be run to waste without being stacked, it is usual to impound it in some form of dam where the solids can be deposited and the water decanted off for return to the plant. It is generally advisable to recover as much of the water as possible in order not only to save the expense of obtaining a fresh supply

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  • Tailings Management Archives kuchling

    30, 2019018332Perhaps it is time for the mining industry to kick the habit of fluid tailings storage, regardless of the cost and discomfort. Short term pain for long term gain. I have written another blog on the issue of tailings management risk Tailings Disposal Method Risk.

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  • Waste Disposal web.mit.edu

    the exact composition of tailings is sitespecific, they generally contain heavy metals, acids, fluorides, sulphides, and radioactive material. Waste rock stockpiles have many of the same problems, and are made out of the same materials, but in coarser mineral form. [2]

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  • TalkTailings

    management has been poor in the past, but is presently a substantial part of mining costs and activities. I agree that not all tailings have been well managed, and there are certainly huge concerns that areas such as oil sands tailings still are of major concern however I think the article conveys that.

    Inquire Now
  • US5636942A Mineral processing tailings disposal Google

    process is disclosed for disposing mineral processing tailings. The process includes the step of treating the tailings to produce a flowable paste including a mass comprised of particles at least approximately 15% of which are less than 20 microns in diameter. The process further includes the step of preparing an unconfined ground surface tailings disposal site by grading a selected site to

    Inquire Now
  • Tailing Disposal an overview ScienceDirect Topics

    predominant method of tailings disposal is by pumping and subaerial deposition of an aqueous slurry (typically at 3045% initial solids concentration by mass and an initial gravimetric moisture content, w, of 233122%) to a surface TSF. The tailings may be discharged from a single pipe outlet or from a number of reduced diameter spigots off the main perimeter pipeline.

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  • Mine Tailings Disposal Methods

    Disposal of Mining Metal Ores amp Industrial Minerals Mining and oreprocessing methods are similar in the metalore and nonmetal mineral industries, as are waste disposal techniques. The wastes of interest are waste rock, overburden and oreprocessing wastes (or tailings).

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  • Life cycle cost estimation and environmental valuation of

    sustainable tailings framework was introduced by Adiansyah et al. (2015) and consists of eight steps including analyzing the waterenergy nexus, environmental assessment, and economic analysis. These steps enable mining companies to determine the most effective and efficient strategy for the disposal of their tailings.

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  • Information Circular msha.gov

    disposal, construction, soil mechanics, geology, hydrology, and hydraulics. Tailings Ponds As used in this guide, tailings ponds comprise embankments placed on the ground surface that are required to retain slurries of waste and water they are constructed from tailings, borrow material, or

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  • riverine tailings disposal Papua New Guinea Mine Watch

    tailings discharge forms what local residents refer to as the Red River. A 2013 study noted the catastrophic environmental consequences of tailings discharge and noted that of the 2,500 industrialsized mines in the world, only four mines three of them in PNG were found to rely on riverine tailings disposal.

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  • Information Circular msha.gov

    disposal, construction, soil mechanics, geology, hydrology, and hydraulics. Tailings Ponds As used in this guide, tailings ponds comprise embankments placed on the ground surface that are required to retain slurries of waste and water they are constructed from tailings, borrow material, or

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  • Mine Tailings Transportation amp Disposal FluidFlow

    Mar 06, 2019018332Mine Tailings Transportation amp Disposal March 6, 2019 Martin King. Mining of valuable minerals or metals usually involves the removal of vast quantities of earth from the ground in order to obtain a relatively small amount of the desired material.

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  • Mine Waste Transfer and Disposal Methods Mine 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 concern, so proper transportation and disposal are crucial.

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  • Tailings Management Mining Solutions BASF SE

    May 07, 2018018332BASFs Tailings Management Team offers a total package, from concept to completion. This package includes innovative technology coupled with a wide range of Rheomax174 ETD reagents, expert consultation, bench scale, pilot scale and industrial size feasibility studies. We also supply polymer preparation and dosing equipment and commissioning services our onsite expert technical and

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  • Roundness of mineral particles in subsea tailings from

    11, 2019018332Underwater disposal of tailings. Submarine tailings disposal is the discharge of mining tailings below sea level. Three different types can be defined coastal shallowwater disposal or land reclamation submerged disposal in water shallower than 100 m and disposal in deeper water. Norwegian authorities consider submarine tailings disposal to

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  • STANDARD GUIDANCE (COP 37) Tailings and Waste Rock

    disposal typically involves treating tailings to achieve a specified discharge standard, deaerating and mixing with seawater (to reduce buoyancy) and then pumping tailings through a submerged pipe prior to discharge onto the sea floor, below the surface thermocline and euphotic

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  • Alfa Laval Tailings

    Lavals solidbowl decanter centrifuges are the perfect choice for a wide range of solidliquid separation duties in mining and mineral applications. They can replace or complement existing solutions and help boost capacity, reduce tailings volumes, save space and increase the recovery of water, chemicals and minerals.

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  • Mine Tailings groundtruthtrekking.org

    Disposal of mine tailings is usually the single biggest environmental concern facing a hardrock metal mine, and creates very longterm environmental liabilities which future generations must manage. Many mine tailings do not become appreciably safer over time, if stored properly, and therefore must stored for an indefinite period using current technology.

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  • Innovative Solutions for Tailings Management for Tailings

    Alumina, Nickel, Gold, Iron Ore, Mineral Sands, Oil Sands and Copper, amongst others. RHEOMAX174 ETD (Enhanced Tailings Disposal) is a method of tailings management in which novel technology is used to change and control the structural and drainage properties of mineral processing residues. RHEOMAX174 ETD BENEFITS DELIVERED

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  • Tailings dam

    tailings dam is typically an earthfill embankment dam used to store byproducts of mining operations after separating the ore from the gangue. Tailings can be liquid, solid, or a slurry of fine particles, and are usually highly toxic and potentially radioactive. Solid tailings are often used as part of the structure itself.

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  • Tailings Paste Disposal More than Water Recovery

    Mar 22, 2016018332The cost of water is often one of the main drivers for implementing a thickened or pastetailings disposal system. When water is expensive or scarce, water savings can more than pay for the cost of thickened tailings. Stacking Surface stacking is the disposal of tailings

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