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valuation method of mine tailing

Towards mine tailings valorization: Recovery of critical

Data from 477 Chilean tailings facilities were analyzed and used in the techno-economic assessment of the valorization of mine tailings in the form of CRMs A ROA or real options valuation (ROV) is performed alongside the DCF method; ROA is applied using PV of free cash flows and NPV of a project calculated with Feasibility of re-processing mine tailings to obtain critical

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Valorisation of mine waste ScienceDirect

Mine waste management is an expensive and prolonged task but unavoidable. Mine tailings, especially historical ones, can contain economically feasible mental valuation for several coal mine tailings management scenarios. The economic feasibility of six different options was assessed using the Net Present Value (PDF) Life cycle cost estimation and environmental valuation of

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Estimating processing cost for the recovery of valuable

Dimensional analysis and similarity theory allow for the development of analogous relationships to obtain mine tailing processing costs from primary mining data.Mine tailings, the byproduct of mining and mineral processing, are increasingly mass produced as a result of increased demand for metals and minerals as The Reprocessing and Revalorization of Critical Minerals in Mine

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Recycling mine tailings as precursors for cementitious

The mechanisms that underpin better behaviour in lime mortars are not yet well studied. Jian et al [138] observed that addition of up to 2–6% of mine tailing as a Towards mine tailings valorization: Recovery of critical materials from Chilean mine tailings DOI: 10.1016/j.jclepro.2020.121555 Authors: Natalia Araya Gómez Towards mine tailings valorization: Recovery of critical

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(PDF) Valorisation of mine waste -Part I

Valorisation of mine waste -Part I: Characteristics of, and sampling methodology for, consolidated mineralised tailings by using Witwatersrand gold mines (South Africa) as an example Authors:...1. Introduction. Nowadays, the mining industry faces great economic, social, and environmental challenges (Moran et al., 2014).The major issues are water scarcity, energy supply, decrease in the ore grade, and generation and disposal of waste (Marín et al., 2020).The mining industry is the largest waste producer worldwide, Estimating processing cost for the recovery of valuable

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Advanced Analytics for Valuation of Mine Prospects and

Abstract. This chapter investigates the opportunities for using advanced analytics techniques to establish the value of a mining proposition. The value of mining projects is usually summarized into the financial technical model, which combines technical and financial aspects. The usual main inputs to such models are discussed and the Sustainable mining management is increasingly seen as an important issue in achieving a social license to operate for mining companies. This study describes the life cycle cost (LCC) analysis andLife cycle cost estimation and environmental valuation of coal mine

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Process effluents and mine tailings: sources, effects and management

Water use and energy consumption in mining have been identified as two key business risks by the mining industry. Further, it is identified that future availability of water supply is a significant risk for the hard rock mining sector and a range of treatment methods for mitigating the impending risk are essential as competition for access to The major advantage of alkali activation of mine tailing is that, unlike the other two methods of activation, alkali activated mine tailings can be used as a standalone cement. Alkali activation also: (i) helps in encapsulation of heavy metals and metalloids and thus prevents its leaching; (ii) it has low energy consumption demand and (iii) hasRecycling mine tailings as precursors for cementitious

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Unlocking the potential of microbes: biocementation technology for mine

Despite considerable research has been conducted on physical and chemical methods for rehabilitating mine tailings, for instance, the extraction of metals such as copper, silver, gold, and uranium from mineral ores through bioleaching (Thavamani et al. 2017), there has been limited exploration of the potential role of microorganisms in mine Significant amounts of mining tailings are generated and disposed of every year in dams, leading to potentially serious environmental and safety problems. To identify alternatives for the disposal of these wastes, research works involving their potential application as precursors in the development of alkaline-activated materials have been Mining tailings and alkali activation: a comprehensive

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Mine tailing disposal sites: contamination problems

Mining practices and the absence of proper mine land reclamation has led to heavy metal contaminated sites with serious impact on the ecosystems and risk for human health. The origin of the contamination is often associated to mine tailing deposits because they are a source of the acid mine drainage (AMD). These areas are devoid of Mining is an important industry, accounting for 6.9% of global GDP. However, global development promotes accelerated demand, resulting in the accumulation of hazardous waste in land, sea, and air environments. It reached 7 billion tonnes of mine tailings generated yearly worldwide, and 19 billion solid tailings will be accumulated by Geosciences Free Full-Text Recycling and Reuse of Mine

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Mine Tailing Particles: Roundness and Sphericity Assessment

Personal computers and image-based methods have been used by many researchers, mainly to minimize routine manual activities and to interpreter results automatically. A representative sample of mine tailing particles was dried in an oven at 105–110 °C for 24 h then it was sieved into different uniform fractions in order to obtainAbstract and Figures. Mining is an important industry that provides products and services through infrastructure systems worldwide. However, the global development promotes the steady growth and(PDF) Recycling strategies of mine tailing, and its

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Towards mine tailings valorization: Recovery of critical

In the economic assessment, the discounted cash flow (DCF) method is used to assess the feasibility of the options for the recovery CRMs from mine tailings. This method has been widely used for valuation projects (De Reyck et al., 2008; Kodukula and Papudesu, 2006; Žižlavský, 2014).The fine-grained mineral waste left after removal of valuable material from ore is called mine tailing and is one of the major wastes of the mining processes. Mineral wastes from mines, quarries and excavations are typically rich in SiO 2, Al 2 O 3, CaO and Fe 2 O 3. This chemical composition makes them very attractive candidates to be used inRecycling mine tailings as precursors for cementitious

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Carbon dioxide sequestration by mines: implications for

Balancing or comparing the intensity of sequestration and degassing capacity of CO 2 from active and abandoned mines is a challenging and debatable issue, as mines both emit and sequester CO 2 from the atmosphere. Mine shafts release methane and CO 2 into the atmosphere via degassing (Sechman et al. 2020).In contrast, the Mine tailings that are known to cause human health issues, such as uranium-, lead- and arsenic-bearing mine tailings that surround dense urban centres (e.g., Abiye and Shaduka, 2017) are of high priority from an environmental perspective, as well as aging tailing storage facilities that require substantial investment due to structural safetyValorisation of mine waste ScienceDirect

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Reducing mine water requirements ScienceDirect

An overview of environmental valuation methods for the mining industry. J. Cleaner Prod. (2006) C. Driussi et al. (Catalyst and surfactant concentration and pH) simulating the tailing ore conditions, and the parameter, hydrogen peroxide concentration, were optimized for enhancements of TOC degradation values; Proposal of a kinetic The first 43–101 reports that discuss mine feasibility on a techno-economic basis are produced at the pre-feasibility stage. Despite the TSF being a material cost throughout the life of mine (Armstrong et al., 2019a; Williams, 2020), discussion on the plans for tailings disposal usually takes place in the technically oriented, environmental Accounting for tailings dam failures in the valuation of mining

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Recycling mine tailings in chemically bonded ceramics A review

In this review such chemically bonded ceramic methods that may be used to recycle mine tailings as raw materials, are reviewed while focusing in particular on two methods: 1) geopolymerization/alkali activation and 2) chemically bonded phosphate ceramics. The pretreatment of the mine tailing consisted of 2 h of calcination at 700 The results show that the mix with 20% copper mine tailing and 80% EAF steel slag has the highest skid number, mean texture depth and the least rut depth. 30 ASTM E 2090, Standard test method(PDF) Evaluation of rutting potential and skid resistance of

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Valorisation of mine waste Part II: Resource evaluation for

1. Introduction. Mine waste is a source of pollution globally and can involve acid mine drainage (AMD), generation and dispersal of dust containing radionuclides, heavy and semi-metals, as well as occasional catastrophic collapses of holding dams (Salomons, 1995; Kossoff et al., 2014).Its long-term storage necessitates a large area, which

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