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Wyświetlanie 1-3 z 3
Tytuł:
Life cycle cost estimation and environmental valuation of coal mine tailings management
Autorzy:
Adiansyah, J. S.
Rosano, M.
Biswas, W.
Haque, N.
Powiązania:
https://bibliotekanauki.pl/articles/92038.pdf
Data publikacji:
2017
Wydawca:
Główny Instytut Górnictwa
Tematy:
tailings disposal
economic assessment
environmental valuation
net present value
benefit-cost analysis
składowanie odpadów
ocena ekonomiczna
ocena środowiskowa
wartość bieżąca netto
analiza kosztów i korzyści
Opis:
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 and environmental 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 (OPT 3), and OPT 1 with technology improvement and renewable energy sources (OPT 1A-C). The results revealed that OPT 1A (belt press technology with stack cell flotation) was the first preference in terms of LCC while OPT 1C (belt press technology with stack cell flotation and 10% wind energy) generated the highest benefits value (BCA) compared to the other options. The LCC and BCA components and the volume of GHG emissions were used to determine the best option. Normalization of these three elements resulted in the selection of Option 1C as being the most cost-effective option.
Źródło:
Journal of Sustainable Mining; 2017, 16, 3; 114-125
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of microalgal sourced biodiesel to help underground mines transition to battery electric vehicles
Autorzy:
Laamanen, Corey A.
Moreau, Kyle
Desjardins, Sabrina M.
McLean, Shannon H.
Scott, John A.
Powiązania:
https://bibliotekanauki.pl/articles/2201376.pdf
Data publikacji:
2022
Wydawca:
Główny Instytut Górnictwa
Tematy:
environmental benefits
microalgae
biofuel
life cycle assessment
metals
underground mining
korzyści środowiskowe
mikroalgi
biopaliwo
ocena cyklu życia
metale
górnictwo podziemne
Opis:
The use of fossil fuel sourced diesel underground has various associated health and environmental hazards, and additional energy demand and costs associated with necessary ventilation. One way to reduce these impacts is by utilizing a biodiesel-blend, which generates lower levels of harmful emissions from underground equipment and can be produced regionally, reducing the impact of transportation. Furthermore, this would help allow use of existing machinery during transition towards more widespread electrification underground. Therefore, the concept of an integrated supply and use chain within the mining industry is examined based on biodiesel from acidophilic photosynthetic microalgae cultivated using CO 2 in smelter off-gas. A life cycle assessment (LCA) was conducted to compare the environmental impacts of production, transportation, and end-use of fossil fuel sourced diesel to biodiesel-blended fuel across four underground metal ore mine sites (Canada, Poland, Zambia, and Australia). The outcomes from assessing four key environmental impact potentials (global warming, eutrophication, acidification and human toxicity) demonstrate the advantages of using biodiesel-blends. The integration of biodiesel resulted in changes of -22.5 to +22.8% (global warming), -6.1 to +27.3% (eutrophication), -18.9 to +26.3% (acidification), and -21.0 to -3.6% (human toxicity). The results showed reduction across all potentials for two mines and reduction in human toxicity potential for all sites.
Źródło:
Journal of Sustainable Mining; 2022, 21, 1; 2--14
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Life cycle assessment to demonstrate how automation improves the environmental performance of an underground mining operation
Autorzy:
Moreau, Kyle
Laamanen, Corey A.
Bose, Ron
Shang, Helen
Scott, John A.
Powiązania:
https://bibliotekanauki.pl/articles/1839027.pdf
Data publikacji:
2020
Wydawca:
Główny Instytut Górnictwa
Tematy:
automation
energy reduction
environmental benefits
life cycle assessment
metals
underground mining
automatyzacja
redukcja energii
korzyści środowiskowe
ocena cyklu życia
metale
górnictwo podziemne
Opis:
The worldwide move to introduce more automation into underground metal ore mining is currently aimed at improving both operational productivity and safety. A comparative life cycle assessment (LCA) was used as a novel approach to determine the beneficial impacts automation can also have on environmental performance, using data collected on mine site productivity and energy consumption. The LCA looked at four impact categories: global warming potential, acidification, eutrophication, and human toxicity. When comparing automated equipment to their traditional manual counterpart, all four impact categories experienced a reduction with automation and a subsequent improvement in sustainability performance. Global warming potential, for example, decreased by 18.3% over the mine life period, or 3.7 kg of carbon dioxide equivalent (CO2 eq.) per tonne of ore extracted. Environmental impact reductions were due primarily to lower diesel fuel consumption in the loading and haulage processes as well as a 27% shorter operational mine life leading to less years of mine and mine camp maintenance.
Źródło:
Journal of Sustainable Mining; 2020, 19, 3; 182-194
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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