Valuation Method Of Mine Tailing

Life cycle cost estimation and environmental valuation of ...

01-01-2017· Such methods include the Contingent Valuation Method (CVM), Travel Cost Method (TCM), and Hedonic Pricing Method (HPM). For example, Burton et al. (2012) used the choice modeling method in their study and this required 252 respondents to assess the environmental valuation of a bauxite mine site in Western Australia.

A comparative study of valuation methodologies for mineral ...

The valuation approach to a greenfield project will be substantially different from that applied to a well-drilled, extensively explored mineral property. Furthermore, a valuation exercise may produce different outcomes for the same gold project depending on which method is applied. In order to investigate the variability in valuation methods and

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

01-10-2019· The value of the mine in this case is obtained by computing (27) using the higher operational costs opex2 and subtracting the higher capital expenditure capex2 from the result. In particular, we assume that dry processing mines have no risk of tailings dam failure. The expected value of the mine in this case is V 0 d r y = $ 6. 49 B (+ 20 %).

Journal of Sustainable Mining - Home ICM

mental valuation for several coal mine tailings management scenarios. The economic feasibility of six different options was assessed using the Net Present Value (NPV) and Benefit-Cost Analysis (BCA) methods. These options were belt press (OPT 1), tailings paste (OPT 2), thickened tailings …

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.

Mining Financial Model & Valuation - PGO

Mining Valuation –NPV. Corporate ... NPV Sauder Mine NPV Keevil Mine NPV Chan Mine Total 3,000 2,500 2,000 7,500 corporatefinanceinstitute.com NAV P/NAV. I.e. Why would you pay more than it’s …

Determination of a tailings storage facility capacity via ...

via finite‐element and finite‐strain methods Waldo Huallanca1, Andrés Reyes1, Denys Parra1 and Dirk van Zyl2 1. Anddes Asociados, Peru 2. The University of British Columbia, Canada ABSTRACT Mine operators often encounter the problem of predicting the storage capacity of tailings storage

Mine Tailings Disposal Methods

Table of ContentsMining Coal Tailings DisposalOverburdenWaste RockCoal Preparation-Plant 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 …

Accounting for tailings dam failures in the valuation of ...

01-10-2019· This is one of the main empirical findings of the paper: with the calibrated parameters from subsection 3.3, a dry processing mine has a higher expected value (+20%) than a traditional mine, once the cost of tailings dam failure is properly accounted for.The expected value of a traditional mine with enhanced dam maintenance lies between the two (+8% compared to traditional mine).

Journal of Sustainable Mining - Home ICM

mental valuation for several coal mine tailings management scenarios. The economic feasibility of six different options was assessed using the Net Present Value (NPV) and Benefit-Cost Analysis (BCA) methods. These options were belt press (OPT 1), tailings paste (OPT 2), thickened tailings …

Tailings - Wikipedia

Terminology. Tailings are also called mine dumps, culm dumps, slimes, tails, refuse, leach residue, slickens, or terra-cone (terrikon).. Examples Sulfide minerals. The effluent from the tailings from the mining of sulfidic minerals has been described as "the largest environmental liability of the mining industry". These tailings contain large amounts of pyrite (FeS 2) and Iron(II) sulfide (FeS ...

Call for Other Methods of Tailing Disposal – EMTV Online

These locals have suggested other alternatives besides the deep sea tailing method. Some youths in Lae are also supporting this call through an awareness campaign. Their stance on DSTP is driven by the spillage and claims of contamination to marine life at Basamuk in Madang which forced the Ramu Nico Mine to shut down.

Environmental Risks From Mine Tailings - ThoughtCo

10-08-2018· This method cuts down on dust problems, and at least in theory, the impoundments are engineered to let excess water flow out without leaking tailings. Coal ash, while not a type of tailing, is a coal burning by-product stored the same way, and carrying similar environmental risks.

Mining Financial Model & Valuation - PGO

Mining Valuation –NPV. Corporate ... NPV Sauder Mine NPV Keevil Mine NPV Chan Mine Total 3,000 2,500 2,000 7,500 corporatefinanceinstitute.com NAV P/NAV. I.e. Why would you pay more than it’s …

CONSTRUCTION, DESIGN AND EVALUATION OF TAILINGS DAMS …

liners since tailings may have a potential to leach toxic or undesirable constituents to underlying strata. Liners may be composed of compacted native soils, compacted tailings slimes. For economic reasons, compaction of native soils or tailings slimes is the preferred methods of reducing the permeability of impoundment bases.

New Technologies on Mine Process Tailing Disposal

Today, tailing dams are generally used in the disposal of these mine tailings. However, this method has many environmental disadvantages such as AMD (acid mine drainage), heavy metal mobilization etc. For this reason, the use of alternative methods such as surface paste tailing disposal or ge otextile methods are gradually increasing in the world.

IMPROVEMENT IN THE STABILIY OF UPSTREAM METHOD …

tailings dams, due to the higher mill grind sand content available in the copper tailings compared to other types of finer grind mill tailings. The upstream method tailings dams are the most economic to construct for dam raises, unless large quantities of excavated mine overbur den waste rock

Mine Valuation - Mining Guide

Mine Valuation Prospective value Price of Metals Amortization of Capital Valuation of Mines Development of Mines Shape of Mining Shafts Subsidiary Development Methods of Ore-Breaking Methods of Supporting Excavation Mechanical Equipment Drainage-Controlling Factors Machine Drilling Ratio of Output to the Mine Labor Efficiency Working Costs ...

Tailings - Wikipedia

Terminology. Tailings are also called mine dumps, culm dumps, slimes, tails, refuse, leach residue, slickens, or terra-cone (terrikon).. Examples Sulfide minerals. The effluent from the tailings from the mining of sulfidic minerals has been described as "the largest environmental liability of the mining industry". These tailings contain large amounts of pyrite (FeS 2) and Iron(II) sulfide (FeS ...

New Technologies on Mine Process Tailing Disposal

Today, tailing dams are generally used in the disposal of these mine tailings. However, this method has many environmental disadvantages such as AMD (acid mine drainage), heavy metal mobilization etc. For this reason, the use of alternative methods such as surface paste tailing disposal or ge otextile methods are gradually increasing in the world.

New report urges global action on mining pollution

The global volume of stored tailings is also unknown. However, recent disasters illustrate the potential scale of accidents. The collapse of the dam at the Germano mine, which is owned by global mining giants Vale and BHP Billiton, released more than 33 million cubic metres of tailings, or waste left over from the processing of the ore.

Life cycle cost estimation and environmental valuation of ...

Adiansyah, J.S. and Rosano, M. and Biswas, W. and Haque, N. 2017. Life cycle cost estimation and environmental valuation of coal mine tailings management.

Differences between water-retention dams and tailing …

Capturing and generating value from mine tailings. Causes of tailing dams failures 1915-2016. Climate change and its eff-ect on the stability and lifespan of a tailings dam. Considerations for long-term storage. Cross section of Tapian Pit. Estimated amount of metals released into the environment.

Tailings.info What Are Tailings? - Their nature and …

Today there are individual mines producing in excess of 200,000 tonnes of tailings per day. Understanding the mineral processing techniques can help to determine how tailings are produced and the challenges associated with their storage. Run of the mine ore is physically reduced by crushing and grinding methods (figure 2).

Technical Report Design And Evaluation Of Tailings Dams

2.1 Methods for Tailings Disposal Because mine tailings produced by the mill are usually hi slurry form, disposal of slurry tailings in impoundments made of local materials is the most common and economical method of disposal. There are four main types of slurry impoundment layouts; valley ...

Geotechnical Properties of Mine Tailings

ings to understand the variety of tailing properties from different ore mines. Materials and Methods Tailings The produced tailings were transported into a hydrocyclone sepa-ration facility, and two kinds of tailings were generated, i.e., coarse tailings from the bottom and fine tailings from the overflow of the hydrocyclone separation facility.

Tailings.info History of tailings storage methods

By about 1930 a complete cessation to this type of tailings disposal was enforced in the western world creating the first benchmark regulations on mine waste management. Mines like Ok Tedi and Grasberg, who dispose of their tailings to natural water courses, do so due to steep and unstable terrain restricting the construction and operation of a tailings storage facility.

Mine Valuation - Mining Guide

Mine Valuation Prospective value Price of Metals Amortization of Capital Valuation of Mines Development of Mines Shape of Mining Shafts Subsidiary Development Methods of Ore-Breaking Methods of Supporting Excavation Mechanical Equipment Drainage-Controlling Factors Machine Drilling Ratio of Output to the Mine Labor Efficiency Working Costs ...

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