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Industrial sludges as alternative fuel in cement plant
Raška, Miroslav ; Kalina, Lukáš (referee) ; Opravil, Tomáš (advisor)
This thesis deals with the use of industrial sludge as an additive to alternative fuels in the cement industry. The first part is focused on solid alternative fuels, especially sewagesludge, processed and used in the firing process of Portland clinker and heatingpotential of the secondary raw materials, fuels. The second part deals with the history, production of cement and its raw material base. The last part contains information of practical measurements and draw conclusions about the appropriateness of using that type of industrial sludge in cement as a solid alternative fuel.
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Solubility of power plant fly ashes in high-alkali environment
Kejík, Pavel ; Opravil, Tomáš (referee) ; Šoukal, František (advisor)
This work deals with study of alkali activated ashes from high-temperature and fluidized bed coal combustion in thirteen powerplants in Czech republic. A solution of 50% sodium hydroxide was used as an alkali activator in this case. Because the two main elements of these secondary raw materials are silica and aluminum, the main part of the work is study of their evolution to solution and dissolve time dependence. The second part is comparing of the phase composition of powerplant ashes before alkali activation and after that.
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Comprehensive flooring system for extreme exposure conditions
Šlancar, Jakub ; Bydžovský, Jiří (referee) ; Drochytka, Rostislav (advisor)
This thesis purposes a solution in form of a high resistance coating reaching a minimum compressive strength of 80 MPa in combination with a adhesive bonding compound and with other additive modifying resulting properties. Furthermore, this thesis is concerned with current state of the floor market and focuses especially on those floors used in extreme conditions, such as heavy manufacturing. Furthermore, The basic testing of this method is also included in this thesis.
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Analysis for the production of foam glass using alternative raw materials
Janák, Petr ; Brožovský, Jiří (referee) ; Bydžovský, Jiří (advisor)
Due to rapid technological development and continuously increasing amount of waste, people aim their emphasis at the enviromental protection and using of secondary raw materials. Glass has a high potential as a secondary raw material, because it is practically 100% recyclable. One way how to use the glass cullet is a production of foam glass. This Bachelor‘s thesis mainly deals with the possibilities of using recycled cullet and forecasting of alternative raw materials that can be used as foaming agents in the manufacture of foam glass.
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Rehabilitation technology of embankment dams by using suitable types of waste
Michalčíková, Magdaléna ; Kulísek, Karel (referee) ; Drochytka, Rostislav (advisor)
The subject of this work is to find an optimal technology for repairing existing embankment dams with emphasis on simplicity and ecological scalability. Next, secondary energy and waste materials will be evaluated as a partial replacement of a quality montmorillonitic clay. The aim of this will be to maximize the use of these waste materials. In the end a selection of materials for the locality will be made. The use of appropriate types of waste for repairs of embankment dams with clay based grouting compound technology has a great potential, especially with those dams that are not fulfilling their function due to their age.
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The issue of waste management with emphasis on secondary raw materials
Skalická, Eliška ; Sato, Alexej (advisor) ; Starý, Martin (referee)
In this thesis, we have focused on secondary raw materials, which are very important as industrial commodities from the perspective to waste recycling, employment and especially business potential. Due to the fact that the way of buying up metals from individuals changed since March 1, 2015, there were significant interference in the aforementioned areas, which were been deduced by analyzing the problems in the region Orlickoustecko and subsequent projection of the results to nationwide estimates. It has been found by research, that the negative impact could have been affected both the change in legislation and the falling price of iron ore. The contribution of this work is the finding that although the intention of legislators to reduce the number of crimes related to crime in the purchase of metal was successful, but this fact was accompanied by the negative impacts on both employment and economic field, and probably also on the environment in the Czech Republic. Negative impacts far outweigh the decrease of the amount of damage caused by criminal acts.
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The Regional Aspects of Secondary Raw Materials Market in the Czech Republic
Botková, Zuzana ; Slavík, Jan (advisor) ; Hadrabová, Alena (referee)
This thesis deals with the market for secondary raw materials. First, basic terms are explained together with the close analysis of different interpretation of the term "waste" and "secondary raw material", next "recycling". Then general principles of the functioning of markets are applied to the issue of secondary raw materials. It is discussed if theoretical knowledges described below follow the reality of markets in which commodities produced from the solid waste are traded. After that structure of the market is analysed from the mikroeconomic perspective. The objective of the qualitative research was to determine the impacts of the crises on the regional market.
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Analysis of practicity of government grant
Sedláčková, Daniela ; Dvořáček, Jiří (advisor) ; Petrlík, Oldřich (referee)
The goal of this dissertation is to consider the practicity of grant for a company, which has its business line in ecological disposal of car wrecks and electric scraps. Then to describe the significancy of line of business for the company especially with the relations of impacts to the environment. Practical part is devoted to evaluation and analysis of company which is interested in acceptance of grant from the State fond for environment (SFŽP) for the development of its business activities. After this study I concur with the analysis of other actual possible forms of state assistance. They could lead to an improvement of position and no only of this concrete company, but also the others which are active in this business line of ecological disposal of car wrecks end electric scraps.
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