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Increasing population levels, growing economies, rapid urbanization and changes in consumption patterns have increased the demand for raw materials such as base and precious metals, leading to growing concerns regarding their availability and the global efficiency of the mine supply chain. Mine tailings, consisting of process effluents that are generated in a …
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Mine tailings typically consist of process effluent and finely-ground rock generated at the mine processing plant. Tailings have no financial gain to a mine or mineral operator and as such, tailings are usually stored in the most cost-effective way possible to meet site specific factors as well as adhere to relevant environmental regulations.
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Copper concentrations in the leach solutions are controlled by passing part of the PLS flow through a SART process, where the acronym stands for "Sulphidisation, Acidification, Recycling and Thickening". ... dumps and tailings, slags and other industrial wastes in the integrated mining process. More increasing the need for involving raw ...
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Every point of the delivery process, covered. SOLUTIONS WORLD LEADING Image courtesy of Stripes Engineering - Gunnedah NSW PASTE & THICKENED TAILINGS FLOW CONTROL. ... Designed for Paste Backfill and Tailings flow control applications where precise control is required to maintain pressures, level or most importantly reduce
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DOI: 10.1016/j.ssci.2019.104579 Corpus ID: 213997746; Tailings dam safety monitoring and early warning based on spatial evolution process of mud-sand flow @article{Li2020TailingsDS, title={Tailings dam safety monitoring and early warning based on spatial evolution process of mud-sand flow}, author={Sumin Li and Liwei Yuan and Hua Yang and Huaming An and …
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Download scientific diagram | Process flow of tailings separated to different purpose from publication: Disposal Methods on Solid Wastes from Mines in Transition from Open-Pit to Underground ...
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Tailings from the process will be impounded in a tailings pond; water will be reclaimed from the tailings pond and reused in the process. The process will be designed to treat 25,000 t/d of material. copper extraction process flow chart . David October 1, 2015; 8:55 pm; Prev Previous Effect of pH on Copper Cleaner Flotation.
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However, many tailings generated and stockpiled during the mining process have become an obstacle to developing a low-carbon and green economy. In this paper, we selected copper tailings as a representative case study. First, we used material flow analysis for copper tailings in Tongling City and then constructed a life cycle assessment model.
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Alternative tailings disposal technologies can be effective solutions to mining waste safety and environmental problems. The current decision-making processes for tailings disposal schemes lack consideration of environmental impacts. Based on a case study of an open-pit iron mine in northern China, this study adopted the life cycle assessment (LCA) …
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Flotation tailings are by-products of coal preparation plants, which do not only occupy cultivated land but also cause pollution. The high ash content and low calorific value of tailings limit their applications. Deashing is the precondition for the reutilization of flotation tailings. However, it is more difficult to remove ash content from flotation tailings compared with raw …
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Download scientific diagram | The evolution process of tailings-and-water flow following dam break at the crest of the starter dam. (a) First minute; (b) third minute; (c) fifth minute; (d) tenth ...
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This article explores a little-explored tailings disposal technique that has the potential to be considered as an environmentally friendly solution, returning mine tailings to their place of ...
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Bao et al. [11] explored the process flow for reprocessing iron tailings and determined the adoption of a process flow of "copper-zinc mixed flotation - regrinding - copper-zinc separation - zinc flotation - iron magnetic separation - reverse flotation of iron concentrate" to recover Cu, Zn, Fe, and associated precious metals from iron tailings.
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Generally as the tailings deposit they flow away from an outfall and natural segregation occurs. The degree of this segregation essentially depends on the particle size range of the tailings and the pulp density of the slurry (Vick 1990). ... The general process of multiple subaerial deposition is as follows (modified from (Ulrich, East et al ...
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In this process, three dewatered tailings streams are produced: a primary cyclone underflow, a secondary cyclone underflow and a centrifuge pulp. These three streams can be combined or …
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On March 27, 2022, a tailings dam in Jiaokou County, Shanxi Province, China, experienced a sudden breach leading to 224,000 m3 of released tailings that flowed downstream and damaged infrastructure. The tailings flow exhibited relatively slow movement according to eyewitnesses, with the complete duration of the failure process lasting 20–30 min. In order to …
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As a result of the abovementioned tests, a conceptual process flow sheet is proposed for the treatment of these chromite concentration plant tailings. Recovery of nickel and chromite from the tailings has been studied on the samples with 0.214 % Ni and 5.10 % Cr2O3 content and taken from Orhaneli Chromite Concentration Plant.
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Slump at transition from high concentration tailings to paste in laminar flow. Design process The solids specific gravity is measured using a standard test procedure such as ASTM D854-02. Effect of cement addition on slump (standard 300 mm slump cone) Laminar flow settling in paste fill pipeline Figure 4 turbulent flow is significantly higher than the deposition velocity.
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New tailings management practices aim to recover much of this water for reuse in the mineral processing plant, reducing raw water draw and the regional water impact of mining operations – a key element in mining sustainability. Mine …
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1. Dewatering tailings and thus reducing their ability to flow in the case of a dam failure 2. Recovering more water from tailings which can be reused throughout the mine 3. Flexibly dewatering tailings into a suitable size fraction to construct tailings storage facility embankments or manufacture structural concrete products
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Wang et al. used CFD based on the RSM turbulence model to simulate the thickening process of tailings slurry in a gravity thickener, ... Tanguay et al. used CFD to study the influence of the flocculation process on the flow field and the effects of the internal aggregate structure on the flocculation performance of the feedwell.
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Jin et al. carried out a coupled flow-solid model test for the infiltration of suspended particles into tailings dams to investigate the process of the particulate matter's influence on the tailings dams, and the test showed that Ground roughness has a large influence on the flow characteristics of the dam-busting sand flow.
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Tailings desiccation process studied in environmental chamber experiment. July 2021; ... evaporation front from the dry air flow introduced into the c hamber by the dehumidifier. 292. 293.
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Download scientific diagram | Process flow for each tailings management option. from publication: Life cycle cost estimation and environmental valuation of coal mine tailings management ...
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Analyze the spatial evolution process of the mud-sand flow and reasonably judge and estimate the mud-sand flow disaster after tailings dam-break are the premise for the construction and safety ...
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Tailings ponds can recycle water resources through the water recirculation system by clarifying and purifying the wastewater discharged from the mining production process. Due to factors such as flooding and heavy rainfall, once a tailings dams burst, the spread of heavy metals in the tailings causes underground and surface water pollution, endangering the lives and …
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Fig. 10. The figure shows the static liquefaction in three tailings dams, a) sand volcanoes, b) sand dikes in surface tailings basin and c) sand dikes in profile. When the flow failure of a tailings dam occurs, different structures are associated with them: …
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The tailings flow at a rate of 51.6 cubic meters per hour and 34% solids. The tailings line consists of five separate sections and each individual …
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Adopting an appropriate method to analyze the spatial evolution process of tailings flow after tailings dam failure can provide a rational assessment of the inundation range and evaluate the subsequent disaster. Simultaneously, it can offer a foundation for tailings pond construction and safety management. This paper, focusing on a specific iron mine in Xiagao, …
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The tailings process must be designed and optimized as an integrated system. A process strategy What is the best approach to produce a robust, adaptable ... (or gravity channel) flow behaviour of tailings in laminar, transitional, and turbulent flows, allowing for settling of coarse fractions. The complex and stratified flows that can
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