Carbon and ecological footprints as tools for evaluating the environmental impact of coal mine ventilation air

Eva Díaz, Javier Fernández, Salvador Ordóñez, Noel Canto, Albino González

Producció científica: Article en revista indexadaArticleAvaluat per experts

24 Cites (Scopus)

Resum

Coal mines ventilation gases are an important source of methane emissions. Common ventilation systems are designed to ensure safe working conditions in the shafts, leading to huge ventilation gas flow rates. Traditionally, low attention has been paid to such emissions because of their low methane concentration. However, it is necessary to take into account that although the concentration of methane is very low (typically <1%), the volume of air that ventilation systems move is large, and therefore these emissions constitute the largest source of greenhouse gases from underground coal mines. This work proposes the use of ecological and carbon footprints approaches as a tool for determining the relative importance of these emissions in comparison to the other direct and indirect environmental impacts from the coal mining activity. The study has been performed in the main ventilations shafts of the mining company HUNOSA, located at NW Spain (bituminous coal). Results indicate that ventilation air methane is a key fraction of the total emissions of greenhouse gases releases in this activity (60-70%).

Idioma originalAnglès
Pàgines (de-a)126-130
Nombre de pàgines5
RevistaEcological Indicators
Volum18
DOIs
Estat de la publicacióPublicada - de jul. 2012
Publicat externament

Fingerprint

Navegar pels temes de recerca de 'Carbon and ecological footprints as tools for evaluating the environmental impact of coal mine ventilation air'. Junts formen un fingerprint únic.

Com citar-ho