• ‘Unacceptably high’ risk of tailings dam failure in ...

    1 天前  The report warns of the high risk of a failure of the tailings dam for the proposed mine, and cites the dam design’s lack of seismic safety criteria, which is a violation of Brazilian regulations.

  • tailing dam at mining site」 - katarinas-riebeek.co.za

    Dam breach.The Mount Polley open pit copper and gold mine disaster in the Cariboo region of British Columbia began in the early morning of 4 August 2014 with a partial breach of the tailings pond dam, releasing 10 million cubic metres 10 billion litres; 2.6 billion US gallons of water and 4.5 million cubic metres 4.5 billion litres;

  • Exclusive: Global tailings dam standards fall short of ...

    2020-6-25  A panel of industry, investor and U.N. groups has been working for more than a year on the standard, triggered by the 2019 collapse of Vale SA’s Brumadinho upstream tailings dam

  • Technical Report: Design and Evaluation of Tailings Dams ...

    2016-3-27  Design, and Analysis of Tailings Dams (BiTech Publishers Ltd. 1990). This is particularly true of certain concepts and organizational emphases, as well as many of the tables and figures. In some cases, this document presents a digest of Vick's overall approach to tailings dam planning and design.

  • Tailing Disposal Methods and Tailings Dam

    2020-6-25  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.

  • Assessing Risks of Mine Tailing Dam Failures

    2019-1-29  design and management of tailings dams, failures still occur. The breach of the Fundão dam at the Samarco mine in 2015 killed 19 people and was declared the worst environmental disaster in Brazil’s history. The incident has caused significant legal and financial repercussions to the company. The risks posed by tailings dams to the population,

  • Thickeners or thickener plants - Outotec

    A Holistic View to Helps Identify Performance ImprovementsReducing Operational Variability Through Control System ImprovementsImproving The Performance of Existing PlantsIdentifying The Factors Limiting PerformanceSummaryThickeners are recognized as one of the more cost-effective technologies for recovering water from tailings streams. Significant energy savings can be achieved by maximizing the recovery of water close to the mill. In addition, a higher density of tailings deposited in the dam tends to reduce the footprint and produce a more stable tailings deposit. Figure 1. Outotec Paste Thickener. When considering a thickened tailings solution, there is the question of whether the technology to thicken tailings should be located in
  • Tailingsfo Laboratory and Pilot Plant Testing

    2020-4-30  Tailings design consultants and mineral operators should consider a wide range of tests as part of any pilot plant design. For example, a pilot thickener trial that is focused on determining thickening limitations of a feed can easily incorporate flumes to assess beach slope variations using the underflow feed from the thickener.

  • Preparation of design report for TSFs - guide

    2020-7-7  Introduction – TSF design justification The tailings storage facility (TSF) design report presents an analysis of the background conditions and investigations undertaken. It outlines the basis of the design and justifies the parameters adopted for the engineering design, construction, operation, rehabilitation and after closure of the TSF.

  • Tailingsfo Thickened Tailings Storage - A discussion

    IntroductionHistoryDiscussionThickened tailings, as the name suggests, involves the mechanical process of dewatering low solids concentrated slurry (Fourie 2003). This is normally achieved by using compression (or high rate) thickeners or a combination of thickeners and filter presses. High Density Thickened Tailings (HDTT) are defined as tailings that have been significantly dewatered to a point where they will form a homogeneous non-segregated mass when deposited from the end of a pipe (Welch 2003). They are not to be confuse
  • Tailing Water - an overview ScienceDirect Topics

    Therefore, the design of the capping has to take care for degassing of radon by integrating a radon barrier. This is in particular necessary for tailings containing uranium mining residues or phosphor-gypsum. Since, as mentioned above, the tailing dam consists of tailing material, the dam site needs a radon barrier as well.

  • New Technologies on Mine Process Tailing Disposal

    2016-3-10  Abstract: Tailings are formed as a result of mine processing. When these ta ilings are left in an environment in an inappropriate manner, ... The analysis indicated that the unit costs of the tailing dam, the surface disposal method, and the ... design of surface paste disposal is firstly started obtaining of the mixing rate of the paste ...

  • NZ Series Thickening Equipment/Tailings Dewatering

    Tailings Thickener Justification Thickening, Filtering. Total Cost of thickener and ancillary equipment installed versus Plant to tailings residue Pump Power savings over LOM, maintenance cost reduction LOM,cost savings not pumping water back to the plant over long distance, cost of water handling on the tailings dam ( effluent treatment cost ...

  • tailings thickener in iron ore beneficiation

    Tailings thickener in copper ore beneficiation A tailing of copper flotation process contains iron sulfur and other elements magnetic separation process obtained a unqualified products because the grade of iron concentrate is only 60 but the grade of sulfur is 2 and the grade of SiO2 is 1367.

  • Study of Tailings Management Technologies MEND

    2017-10-31  conventional tailings, unless other factors are important cost drivers: dam cost, water cost, a lack of community acceptance, or the fact tailings would be better stored underground. Turning slurry tailings into paste has been an industry and research focus for more than a decade, but

  • Outotec Thickening technologies

    2017-2-6  Coal paste thickener, Australia Paste plant, Sweden Mineral sands tailings, Australia Gold tailings, Australia Lime saturators, Australia Copper tailings, Chile Low capital cost Optimized design High rate units reduce area by up to 90% Precise test work procedures allow accurate sizing Low

  • Tailings, Heap Leach and Waste Focus

    2019-12-21  in tailings dam design, geological/ geotechnical investigation and environmental engineering, gained from working on large copper, uranium, gold and iron ore mining projects. Jamie currently supplies specialist consulting services in tailings storage facility design, waste rock dump design, foundation engineering and mine site closure/

  • Tailings Filtration Demonstration Plant

    A tailings dam, holding back more than 50 million cubic meters of mining waste collapsed, unleashing a wave of mud several meters high. BHPand Vale have reservedmore than 5 billion USD due to the dam disaster Mount Polley dam failure 2014. releasing 10 million cubic meters of water and 4.5 million cubic meters[of slurry into Polley Lake Cerro ...

  • Fine Coal Recovery from Tailings Impoundment’s

    2018-3-20  The Wollondilly tailings impoundment was created by Clutha limited in the late 60`s to accommodate tailings disposal from the new CHPP recently constructed by the company. As was the case with many coal operators of the time, little thought was given to the value of the fine coal escaping from the prep plant in the tailing streams.

  • List of Tailings, Dams, Water supply dams Projects in ...

    GOLDEN GROVE GOLD COPPER BASE METALS OPERATIONS- TAILINGS DAM Mining - Infrastructure (Tailings, Dams, Water supply dams) project at 50km south of, Yalgoo, WA 6635 of Tailings Dam type of New development. Proposed construction of an additional tailings dam to store more than 15 years worth of tailings. Click for more details...

  • NZ Series Thickening Equipment/Tailings Dewatering

    Tailings Thickener Justification Thickening, Filtering. Total Cost of thickener and ancillary equipment installed versus Plant to tailings residue Pump Power savings over LOM, maintenance cost reduction LOM,cost savings not pumping water back to the plant over long distance, cost of water handling on the tailings dam ( effluent treatment cost ...

  • tailings thickener in iron ore beneficiation

    Tailings thickener in copper ore beneficiation A tailing of copper flotation process contains iron sulfur and other elements magnetic separation process obtained a unqualified products because the grade of iron concentrate is only 60 but the grade of sulfur is 2 and the grade of SiO2 is 1367.

  • Tailings Management Comes Back into Focus -

    Outsourced tailings storage and management may be a game changer where the liquid waste companies and the thickener designer are able to work together to set a suitable benchmark for the tailings as a ‘product,' with the possible side effect of getting better recoveries for miners and processors.

  • Investigation of soil engineering properties for safe ...

    2013-12-3  The design and construction of safe earthen dams or rock filled dams for impoundment of tailings calls for proper engineering design9.1O. An em1hen dam is composed of suitable soils obtained from borrow area or selected tailings and compacted by mechanical means. For carrying out detailed design, geological

  • tailings dam Mining Action Group - Save the Wild UP

    The upstream tailings dam method is designed to fail, environmental groups warn. Industry experts consider the upstream method to be the least desirable type of tailings dam construction, due to its high risk of dam instability. It is used because it is cheaper to

  • A Statistical Model for Slurry Thickening

    2015-7-28  with superior settling characteristics during sedimentation in the thickener and consolidation in the tailings pond (Jewell et al., 2002). Developing such a slurry is the most challenging issue in the design and implementation of an efficient tailings management program since sedimentation is governed by physicochemical interactions

  • Tailings, Heap Leach and Waste Focus

    2019-12-21  in tailings dam design, geological/ geotechnical investigation and environmental engineering, gained from working on large copper, uranium, gold and iron ore mining projects. Jamie currently supplies specialist consulting services in tailings storage facility design, waste rock dump design, foundation engineering and mine site closure/

  • Tailings Management Metal Recovery Ausenco

    Thickener selection; Distribution system design. Deep sea tailings placement (DSTP) Subsea tailings outfall pipeline design; Slurry seawater mixing tank; Seawater intake pipeline design; Subsea pipe burial and scouring protection; Ballast design; Tailings fate modelling; Risk analysis. Tailing transport and pipelines. Single point discharge ...

  • Understanding Your Long-Term Vision for Handling

    The higher the underflow solids concentration, then the higher the yield stress. Mine planners can best determine the thickening process by starting at the end of the system and working backward. Answers to the questions regarding how the tails are to be stored, placed, transported, and produced are key to honing in on the thickener design.

  • 20th International Seminar on Paste and Thickened

    Dr. Behnam Pirouz, Manager of our Slurry Transport Services, from our Melbourne office attended and presented a technical paper at the 20th International Seminar on Paste and Thickened Tailings. The seminar was held in Beijing- China from 16 to 18 June, 2017.

  • tailings thickener in iron ore beneficiation

    Tailings thickener in copper ore beneficiation A tailing of copper flotation process contains iron sulfur and other elements magnetic separation process obtained a unqualified products because the grade of iron concentrate is only 60 but the grade of sulfur is 2 and the grade of SiO2 is 1367.

  • tailings dam Mining Action Group - Save the Wild UP

    The upstream tailings dam method is designed to fail, environmental groups warn. Industry experts consider the upstream method to be the least desirable type of tailings dam construction, due to its high risk of dam instability. It is used because it is cheaper to

  • First dry tailings of its kind in Asia delivers vast ...

    The dry tailings disposal plant would handle the tailings generated from the, at present, 2.7 MTPA and 2.0 MTPA beneficiation plants to produce cakes, which would be transported to the tailings dam. Additionally, the plant would be designed to cater to an increased combined capacity of 5.5 MTPA once the existing plants were debottlenecked.

  • Tailings 2017 – Gecamin Digital Publications

    Tailings 2017. Online proceedings. Welcome to Tailings 2017 online articles. This publication contains a selection of articles carefully reviewed by a technical committee composed of experts from the field. You can directly access the articles in this publication through the search filter box on the left of the screen.

  • Superiority of Filtered Tailings Storage Facility to ...

    The main purpose of a tailings dam is to contain the tailings slurry, which may contain several types of toxic substances and pose a risk to the nearby population and environment [].According to statistical data, China has constructed more than 11,000 conventional tailings impoundments using the upstream method [].Although easy to operate with a low initial cost, upstream tailings dams are ...

  • Tailings Management Facilities Water Management and

    2015-1-14  either retained in the tailings voids or lost to seepage and evaporation. Water usage efficiency can be improved significantly by thickening tailings, because the thickener overflow is re-tained within the plant circuit and is therefore not exposed to such losses. Mudder et al. (2001) describe approaches to determining the overall water balance ...

  • Characterisation of a thickened tailings beach

    A geotechnical investigation has been carried out on the tailings beach of the Sunrise Dam central thickened discharge (CTD) tailings facility. ... design life of the initial stack was approximately 25 Mt (Williams 2000), but the design has been ... thickener operation and management of deposition have resulted in a higher stack, and steeper ...

  • 20th International Seminar on Paste and Thickened

    Dr. Behnam Pirouz, Manager of our Slurry Transport Services, from our Melbourne office attended and presented a technical paper at the 20th International Seminar on Paste and Thickened Tailings. The seminar was held in Beijing- China from 16 to 18 June, 2017.

  • The process design of gold leaching and carbon-in-pulp ...

    2009-8-27  Tailings dam 5.5 Indirects 9.2 Table II Typical operating cost breakdown Item % of operating Reagents and chemicals 12.2 Consumables 16.3 Utilities 26.7 Maintenance 3.38 Labour 37.9 Tailings dam 0.8 Assays 2.8

  • Tailingsfo What Are Tailings? - Their nature and

    2020-4-30  This means that the final design of any tailings facility is always provisional and must be confirmed once tailings production is underway (Blight 1998). Concentration is the process of extracting the economic product from the crushed and ground ore, the waste from this process is the tailings. Froth flotation (figure 2) is the most widely used ...