Application of a Life Cycle Impact Assessment framework to evaluate and compare environmental performances with economic values of supplied coal products |
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| Institution: | 1. Mining Innovation, Rehabilitation and Applied Research Corporation (MIRARCO), 935 Ramsey Lake Road, Sudbury, ON, Canada P3E 2C6;2. Laurentian University, 935 Ramsey Lake Road, Sudbury, ON, Canada P3E 2C6;3. Department of Mining, Metallurgy and Materials Engineering, Université Laval, 1065 Ave. de la Médecine, Québec City, PQ, Canada G1V 0A6;1. Faculté de foresterie, de géographie et de géomatique, Pavillon Abitibi-Price, 2405, rue de la Terrasse, Université Laval, Québec, QC G1V 0A6, Canada;2. Consortium de recherche FORAC, Pavillon Adrien-Pouliot, 1065 avenue de la Médecine, Université Laval, Québec, QC G1K 7P4, Canada;3. Department of Forest Resources Management, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada;1. School of Chemical and Metallurgical Engineering, University of the Witwatersrand, P/Bag 3, Johannesburg, Wits 2050, South Africa;2. Facultad de Ingeniería, Universidad Nacional del Comahue, Neuquen, Argentina;1. MME, Queen''s University, K7L3N6, Canada;2. Mining Engineering, Queen''s University, K7L3N6, Canada |
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| Abstract: | The South African economy is strongly based on coal as a mined resource, and various grades of coal are supplied to local and international customers. However, the environmental impacts associated with the preparation and production of different coal grades from Run of Mine (RoM) or raw coal are variable; specifically, the different mining methods used for coal extraction – opencast or underground mining – have different environmental impacts. The entire life cycles of the grades of coal must therefore be evaluated in order to compare environmental performances with supplied economic values. In this paper, a Life Cycle Impact Assessment (LCIA) methodology, based on the ISO 14040 standard, is applied for this purpose. Four cases are considered in South Africa: typical high-grade and low-grade coals from opencast and underground mines. |
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