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Larix Sibirica a jeho ekologické nároky ve vztahu k možnostem revitalizace odlesněných ploch v severním Mongolsku
Janoštík, Marek
This work deals with ecological requirements Siberian larch (Larix sibirica) and its possible use as a revitalizing trees on degraded areas of northern Mongolia in the context of local extreme natural conditions. Using XRF spectrometry revealed the chemistry of individual segments of the target area, which indicates not only the state of the territory, but also the negative influences acting on it. XRF analysis found no risk elements that could have a negative impact on the natural recovery of the localities of interest. As the main determining factor of the expansion and restoration of larch only at research sites is adequate distribution of available water supplies. For the successful implementation of both natural and artificial regeneration, it is important to look actively protecting the stands before their damage.
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Application of portable XRF spectrometer for evaluation of the quality of limestone ore and estimation of reserves at the Mořina - východ (Velká Amerika) deposit
Pechar, Tomáš ; Zachariáš, Jiří (advisor) ; Knesl, Ilja (referee)
The present thesis provides assessment potential of the Mořina - Východ deposit (Velká Amerika) as a raw material reserves for the Kozolupy - Čeřinka deposit. The reason for this work is limited lifetime of the Kozolupy - Čeřinka deposit (approx. 11-14 years) that does not allow fulfilling the requirement to ensure the production of limestone for flue gas desulphurization for ČEZ until 2035. Objective of this work is to summarize all the existing knowledge of the deposit and define the expected technological parameters of raw materials and consider the possibility of its use as a raw material for flue gas desulphurization. Special attention was paid to dolomitization of the limestone, namely to its extent and nature, because elevated Mg content lowers the quality of the limestone ore. Finally, ore reserve calculations and mining intentions are presented. On the basis of microscopic research two types of dolomite were distinguish: diagenetic and epigenetic. Diagenetic dolomite originated at shallow burial together with recrystallization of limestone slurry at temperatures up to 50 řC. Homogenization temperatures of primary fluid inclusions in epigenetic dolomite lay in the range 76-92 řC (sample A9) and 63-88 řC (sample A25).The trapping temperature of these inclusions was probably only slightly...
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Měření obsahu těžkých kovů v čistírenském kalu
Hanzlíčková, Iva
This diploma thesis is focusing on heavy metals content measuring in sewage sludge. The thesis is divided into theoretical and practical part. The theoretical part deals with valid legislation of the Czech Republic, with toxic effect of heavy metals on environment and population health, and with X-ray spectrometry and technical equipment of selected WWTPs.
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Larix Sibirica a jeho ekologické nároky ve vztahu k možnostem revitalizace odlesněných ploch v severním Mongolsku
Janoštík, Marek
This work deals with ecological requirements Siberian larch (Larix sibirica) and its possible use as a revitalizing trees on degraded areas of northern Mongolia in the context of local extreme natural conditions. Using XRF spectrometry revealed the chemistry of individual segments of the target area, which indicates not only the state of the territory, but also the negative influences acting on it. XRF analysis found no risk elements that could have a negative impact on the natural recovery of the localities of interest. As the main determining factor of the expansion and restoration of larch only at research sites is adequate distribution of available water supplies. For the successful implementation of both natural and artificial regeneration, it is important to look actively protecting the stands before their damage.
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|
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Application of portable XRF spectrometer for evaluation of the quality of limestone ore and estimation of reserves at the Mořina - východ (Velká Amerika) deposit
Pechar, Tomáš ; Zachariáš, Jiří (advisor) ; Knesl, Ilja (referee)
The present thesis provides assessment potential of the Mořina - Východ deposit (Velká Amerika) as a raw material reserves for the Kozolupy - Čeřinka deposit. The reason for this work is limited lifetime of the Kozolupy - Čeřinka deposit (approx. 11-14 years) that does not allow fulfilling the requirement to ensure the production of limestone for flue gas desulphurization for ČEZ until 2035. Objective of this work is to summarize all the existing knowledge of the deposit and define the expected technological parameters of raw materials and consider the possibility of its use as a raw material for flue gas desulphurization. Special attention was paid to dolomitization of the limestone, namely to its extent and nature, because elevated Mg content lowers the quality of the limestone ore. Finally, ore reserve calculations and mining intentions are presented. On the basis of microscopic research two types of dolomite were distinguish: diagenetic and epigenetic. Diagenetic dolomite originated at shallow burial together with recrystallization of limestone slurry at temperatures up to 50 řC. Homogenization temperatures of primary fluid inclusions in epigenetic dolomite lay in the range 76-92 řC (sample A9) and 63-88 řC (sample A25).The trapping temperature of these inclusions was probably only slightly...
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