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Possibilities of waste treatment in iron and steel industry
Mlčoch, Jakub ; Louda, Jiří (advisor) ; Petrášek, František (referee)
Metallurgical industry annually produces several hundred thousand tones of metalliferous wastes, which contain beside of the oxides of iron, metallic and non-metallic iron also the compounds such as zinc and lead, which are both environmentally and, secondly, preventing the recycling of this waste in metallurgical process in the production of pig iron and steel. The management of this waste, according to the valid legislation, the producer of the waste is burdened by the costs in the form of charges for uploading to a secure landfill or disposal of third parties. At the same time experience a loss of metallic substance contained in the waste, which would be used as a substitute for iron ore in the metallurgical process. Currently occurs on the part of the EU, the pressure to minimize waste, while emphasis is placed on the back of recovery (recycling). This pressure is also reflected in the increase in charges for storing waste, forcing enterprises to innovate in the field of recycling technologies. The correct settings and the use of recycling technologies implies reduction of production costs, which can be discerned from the economic calculation in the application section of the work, that handle with a specific value of the fee for storage of waste.
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Mining activity at Pustina near the Míšovice village (Znojmo region)
Roštínský, Pavel ; Dokoupilová, P. ; Šmerda, J.
During the geomorphological mapping in the crystalline area of the Miroslav Horst, there were a small depression pit found out by P. Roštínský near the Míšovice village in the Znojmo region in the spring season 2006, leading to as yet unknown underground spaces. On the basis of detailed research in the wider surroundings of this pit and subsequent documentation of accessible underground galleries, it were determined that an old, as yet unrecognized mine were located on the western forested slope of the Pustina elevation. Some other entries to the underground realm, dikes and stepped terraces originated by removal of dig material and additional small pits were detected within the whole, more then one hectare-sized area. On grounds of analysed samples, there were a preliminary assumption pronounced that the underground galleries and surface landforms came to existence in connection to a prospection, especially to mining of graphite and iron ore.
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Halt, hands up! Here is the border patrols. Who goes there?
POLÁK, Petr
The aim of my diploma paper is to approximate the period of the divided world in the area of Novohradské hory in South Bohemian region in the twentieth century. The paper is based on many unpublished archive materials, scientific literature and mainly on many interviews with the personal observers living in this area. At first, I try to capture general events at the Bohemian {--} Austrian state boundary from the eldest time to the present. Next chapters deals with the problems of locating border patrols, the lives of members of the Frontier police and the attendance of local people at security of the state boundary. Based on the unpublished materials, the paper introduces destinies of the detained people and the dead who tried to cross the state boundary illegaly. I would also like to mention the main illegal groups of the III. anticommunist revolt, which were operating in the Budweis region, and also the agents of foreign intelligence services. Generally, I try to capture destinies of not only direct victims of the Iron Curtain {--} who were in fact vulnerable runners, but also destinies of soldiers executing compulsory millitary services, who were unfortunatelly forced to execute their national duty {--} to protect the state boundaries of totalitarian regime.
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Irone ores from the Krušná hora (hill)
Nič, Martin ; Marek, Jaroslav (advisor) ; Čáp, Pavel (referee)
Krušná Hora near Nový Jáchymov belongs in Barrandian area to one of the most important localities with the occurrence of Ordovician sedimentary iron ores. Rich reserves of iron ore and easy access to this area was known and used since many centuries ago. Use of deposits laid the foundation for the rich history of mining and metallurgy in Křivoklátsko. The work is divided into two thematic parts. The geological section is devoted to the construction of tectonic bearings, its stratigraphy, mineralogy, petrology, lithology and paleontological finds. Briefly describes the development of this sedimentation area. Self-described history of the geological survey. The history of the use of bearings is described in the second part, which is divided according to individual companies engaged in mining there. Particular attention is paid especially to companies conducting mining during the 20th century. Self-described termination of mining and mine disposal. Attention is paid to the technical equipment of the mine and the current state of the remains of the mining activities.
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Project of educational cycle trail in the area of the Iron mountains and possibilities of planning cycle trail
Kunc, Vít ; Šafránek, Jiří (advisor) ; Nováková, Lenka (referee)
Topic: Project of Educational cycle trail in the pretected landscape area in Iron Mountains Goals: The goal of this work is realization project of Educational cycle train in the protected landscape area Iron Mountains. Production of informative prospectus, which should be offered in the Tourist Information Centers of the area. Method: Field research, which includes personal mapping in the area and cooperation with the staff of information centers. The collection of information from the fields of cultural and natural heritage. Analysis of the maps and guides as the basis of making educational biking trail. Results: Output material of this work is creating educatinal bikig trail in the Protected landscape area Iron Mountain and its environs, which will be processed in the form of information brochure. According to a participator will be able to pass the route. The brochure containing texts, pictures and maps, is possible to offer information centers in the area and also present in electronic form on the internet. Key words: biking, mapping, educational cycle trails, Iron Mountains, protected landscape area, cycling trail
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Changes in structure and phase composition in the surface of tram rail
Švábenská, Eva ; Roupcová, Pavla ; Schneeweiss, Oldřich
We have investigated structure and phase composition of surface layer of tram rails after long time running and the results were compared with those obtained on the original part of material. Changes due to effects of severe plastic deformation together with thermal shocks by friction process were expected. The information about structure and phase composition was obtained by optical and scanning electron microscopy, X-Ray Powder Diffraction, Mössbauer Spectroscopy and Glow Discharge Emission Spectroscopy (GDOES) and this was completed by microhardness measurements. The results show that the surface layer in comparison with the original material exhibits important changes in grain structure, an increase in microhardness and high content of iron oxide and hydrooxides. According to the depth profile of the chemical composition measured by GDOES there is an increase in carbon content in the surface layer which can be effect of up-hill diffusion.
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Raw materials of Manětín area and their presentation in the form of educational patthway
Čada, Martin ; Přikryl, Richard (advisor) ; Matějka, Dobroslav (referee)
This bachelor thesis focuses on the geological history (Late Proterozoic to Quaternary) of the Manětín Permian-Carboniferous basin. It also studies the historical and present use of raw materials (ores, non-metallics, caustobiolites) in the Manětín area, the northern part of the Plzeň-sever district. In appendix, information panels of the educational pathway are proposed. The Manětín basin consists of two structural levels. The lower one (Proterozoic metapelites) forms the base of the basin. The upper one (Permian-Carboniferous clastic sedimentary rocks) is the filling of the basin. There are also a few Proterozoic and Tertiary volcanic bodies. In the past, ore deposits (gold, silver, iron) had been exploited in the Manětín area. Non-metallics (glass sand, ocher, pyrite-slate, roof-slate, structural clay products, arkose) had been largely used, too. There was only a small scale extraction of caustobiolites (humites). Today's extraction is focused on natural stone (crushed stone) only (Zahrádka and Březín deposits). The proposal of the educational pathway contains seven information boards, that show the geological history of the Manětín basin and the use of local mineral raw materials (gold, slate, natural stone) with it's influence on the landscape, society and industry, particularly glass production. The...
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