Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Vivika Väizene"'
Publikováno v:
Scientific Journal of Riga Technical University. Environmental and Climate Technologies. 11:41-47
In case of stratified deposits like oil shale deposit in Estonia, mining losses depend on mining technologies. Current research focuses on extraction and separation possibilities of mineral resources. Selective mining, selective crushing and separati
Publikováno v:
Environmental Earth Sciences. 70:3311-3321
The paper presents results of the study on oil shale mining (Estonia underground mine) possibilities under the Selisoo mire. The Selisoo area is 2,051 ha in extent, and most of the mire is in natural state. Peat layer consists of thick (4.4–6.5 m)
Publikováno v:
Environmental Earth Sciences. 75
Oil shale mining has impact on the environment. In Estonia, 100 years of oil shale mining history provides sufficient experience and acknowledgement for estimating environmental impact for the future. The mining depth is increasing, and mining activi
Autor:
Juri Rivaldo Pastarus, Vivika Väizene, Tiit Rahe, Margit Kolats, Riho Iskül, Ingo Valgma, Veiko Karu
Publikováno v:
Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference; Vol 1 (2013): Environment. Technology. Resources. Proceedings of the 9th International Scientific and Practical Conference. Volume 1; 201-205
Oil shale utilisation losses reach 70% in some cases. These are closely related to legislation, backfilling and waste rock usage. Much smaller sections include production of oil, electricity and chemicals in which most of the research and development
Publikováno v:
Environmental and Climate Technologies; "Environmental and Climate Technologies 2013" Conference Proceedings; 39-44
Oil shale mining is a crucially important industry for the Estonian economy. More than 85 percent of electricity in Estonia is produced from oil shale. The oil shale deposit is located in North-East Estonia. The oil shale bed descends three meters pe
Publikováno v:
Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference; Vol 1 (2013): Environment. Technology. Resources. Proceedings of the 9th International Scientific and Practical Conference. Volume 1; 182-185
Oil shale mining and processing industry in Estonia produce a wide assortment of waste could be considered as available fill materials. Waste rock which is not usable in civil engineering and road building may be used for backfilling underground mine
Publikováno v:
Oil Shale. 30:305
Several extraction technologies have been used for mining oil shale in Estonia. The quality and properties of the raw material for fuel and oil depend directly on the initial geological properties of the mineral resource. In case of kukersite oil sha
Publikováno v:
Oil Shale. 25:125
In the future, oil shale mining conditions will worsen and environmental taxes will be increased. Higher calorific value and more homogeneous material are required for more effective usage of boilers and generator units in power stations and oil plan