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Browsing by Subject "lignite opencast mining"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Działalność Kopalni »Konin« w aspekcie zrównoważonego rozwoju
    (2007) Michalski, Arkadiusz
    »Konin« Brown Coal Mine has been in operation in the Konin region for more than 60 years, enabling it to play an important role in the country. Transformations in the natural environment resulting from the mine's activities are in accordance with the principles of sustainable development. The consequence of these activities is the competitiveness of the brown coal-based electricity production.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Ocena zmian jakości wód podziemnych w obrębie wysadu solnego "Dębina"
    (2008) Macuda, Jan; Winid, Bogumiła
    Opencast extraction of lignite is preceded by dewatering of the field with a system of large diameter wells. Dehydration works result in a considerable increase of hydraulic drops following the direction of water flow towards the opencast. Owing to the presence of a saline diapir "Dębina" between the fields "Bełchatów" and "Szczerców", a barrier made of dewatering wells had to be made to protect the diapir structure. Its task is, e.g. limiting the water flow within the diapir, and consequently, reducing mineralization of pumped waters from washing out of the diaper structure. The quality changes of groundwater composition within the saline diapir in the conditions of enhanced groundwater flow have been analyzed in the paper.