lignite mining
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Geoderma ◽  
2022 ◽  
Vol 410 ◽  
pp. 115664
Author(s):  
Michał Kozłowski ◽  
Krzysztof Otremba ◽  
Natalia Tatuśko-Krygier ◽  
Jolanta Komisarek ◽  
Katarzyna Wiatrowska

CATENA ◽  
2022 ◽  
Vol 211 ◽  
pp. 106012
Author(s):  
Bartłomiej Glina ◽  
Łukasz Mendyk ◽  
Agnieszka Piernik ◽  
Marcin Nowak ◽  
Andreas Maier ◽  
...  

2021 ◽  
Vol 5 (1) ◽  
pp. 47
Author(s):  
Kyriaki Makri ◽  
Christos Roumpos ◽  
Apostolos Antoniadis

The geological education in Greece is essentially rooted in the second half of the 19th century, since 1836, when secondary education was established in Greece. Although geology is referred to in all educational programs, its field was not taught before 1880, due to the lack of competent teachers and suitable books. Geological education in Greece was established as a ”necessary” science at the end of the above century, during Greece’s opening phase of mining activity. In particular, the first attempt to exploit lignite deposits began in Aliveri (Evia) in 1873, but the intensive exploitation in Aliveri began after the First World War, reaching an annual production of 23,000 tons by the end of 1927. Respectively, lignite mining began in Ptolemais in the 1950s and Megalopolis in the 1960s. In the present paper, the correlation of the lignite mining activity in Greece for electricity generation with the content of geoscience textbooks is investigated since it is widely accepted that education is directly linked to economic development.


Author(s):  
Lukasz Lelek ◽  
Joanna Kulczycka

AbstractThe life cycle phase of fossil fuel extraction is mainly considered in the life cycle assessment (LCA) when evaluating the energy production processes. It is then only one of many unit processes, which contribute to the blurring of mining-relevant results. There are few items in the literature focusing exclusively on the lignite mining phase and analysing the specific mining conditions and associated environmental impacts. The article focuses on the LCA of lignite mining processes on the basis of data coming from a Polish mine. The technology for opencast lignite mining is noted for its high production efficiency, high level of recovery and lower risk as regards the safety of workers when compared with underground mining systems. However, the need to remove large amounts of overburden to uncover the deposit contributes to a much greater degradation of the landscape. Analysing the results obtained, several key (hot spot) elements of the lignite mining operations were distinguished for modelling the environmental impact, i.e.: calorific value, the amount of electricity consumption, the manner in which waste and overburden are managed. As a result there is a high sensitivity of the final indicator to changes in these impacts.


Author(s):  
Marwan Al Heib ◽  
Ioannis E. Zevgolis ◽  
Alexandros I. Theocharis ◽  
Nikolaos C. Koukouzas ◽  
Stella Coccia

2021 ◽  
Vol 285 ◽  
pp. 112146
Author(s):  
M. Pająk ◽  
P. Vítek ◽  
O. Urban ◽  
K. Klem ◽  
R. Wąsik ◽  
...  

Mining ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 100-111
Author(s):  
Ioannis E. Tsolas

This paper proposes a stochastic frontier model for measuring both technical and environmental performance at the mine level by using a translog production function. The Kardia Field opencast lignite mine of the Greek Public Power Corporation (PPC), S.A. is the topic of the case study. Efficiency ratings are derived over a long period of time using annual operating data, and in addition, the determinants of inefficiency are established by means of the technical inefficiency effects model. In the light of the results, there is a strong correlation between technical and environmental efficiency; the results are validated by those produced by data envelopment analysis (DEA). In addition, the stripping ratio is identified as the statistically significant determinant of performance. The proposed framework could be used as an instrument to measure the efficiency of lignite mining operations and to identify the drivers of performance.


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