|
|
Burden of environmental noise caused by disposal of demolition waste and its recycling.
VEJVODA, Jan
This bachelor?s thesis deals with the burden of environmental noise caused by disposal of demolition waste and its recycling. The theoretical part is focused on the demolition waste recycling technology and the use of recycled products. The measurements show environmental burden, and results are compared against the legislation. For activities that produce noise above noise limits, environmental noise reduction measures are determined.
|
|
|
Energy utilization of the biodegradable component of municipal waste in the city of České Budějovice
SÝKOROVÁ, Žaneta
My thesis is aimed at the possiblities of collecting and utilizing the biodegradable component of municipal waste in the specific environment of České Budějovice. The thesis includes a proposal to construct a municipal biogas plant to decrease the volume of mixed municipal waste. The goal of this part of the thesis is to compare expected costs and income of the project and determine the general economic indicators and evaluate the investment, so that the project can be either fully recommended or rejected.
|
|
|
Analysis of work equipment that are suitable for recycling of construction materials and waste.
HOŠEK, Lukáš
The aim of my thesis is to give an overview and analysis of appropriate facilities for recycling construction materials and waste products. I deal with the generation of construction waste resulting from demolition procedures and examine the classification of the demolition waste and its subsequent usage in recycling materials processes. The work further addresses the usage of relevant earth-moving machinery in this sector, including relevant adapters for demolition works. The thesis also contains an overview of crushing units with selected technical parameters including theoretical performance. The main criterion for the distribution of mobile crushing units is the size of the inlet. The results of measuring cycles and data for the calculation of the efficiency of crushers at particular work in the processing of construction debris are also given. The actual performance values are compared with the theoretical ones. In all cases, the actual performance is lower than the theoretical one.
|
|
|
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.
|
|
|
How to motivate primary school children to think and act in an environmental way
CHLOUPKOVÁ, Magda
The contents of the Thesis feature a survey of contemporary international attitude to environmental development and its effect on the educational trends in the Czech republic. Also, the short-term eco-educational project intended for primary school children is included here in the Thesis. The aim of the project is to arouse environmental awareness of children and excite their interest in this matter, which is considered to be the first essential step towards the sustainable development.
|
|
|
Appropriate technology for recycling of phosphorus from surface water and wastewater
Holba, Marek ; Maršálek, Blahoslav ; Maršálková, Eliška ; Plotěný, Miroslav
There were identified the sources of phosphorus, which should be used to maximize the recycling procedures. To achieve these improvements new recycling technologies were introduced. Currently, there are quite a wide range of technology solutions, where every solution has its pros and cons. And no technology shows itself as clearly the best solution. However in the modern world are technologies focused on recycling procedures of phosphorus in the form of struvite and processing of sewage sludge. While for developing countries appears to be the most appropriate technology based on the separation of urine and manure from livestock.
|
|
|
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.
|
|
|
ICT scrap and recycling
Végh, Petr ; Mildeová, Stanislava (advisor) ; Dalihod, Martin (referee)
The objective of this thesis is to find an optimal solution for recycling and ICT scrap take-back. In order to attain this target a thorough analysis of ICT scrap recycling's current conditions was conducted. This work also examined recycling facilities dealing with ICT scrap and analysed recyclers based on defined criterions and the best one was chosen. Furthermore products' content was analysed and suggestions were made to optimise its content and eliminate contained dangerous substances having negative impact on the environment and scrapyard operators. Once analysis of take-back schemes in the Czech Republic had been done a new model of take-back system was introduced. This model should be able to achieve nearly 100% return rate of purchased ICT products.
|
|
|
Effect of flash ads on the environment and its comparison with the production of PET bottles
Krejčí, Martin ; Koblovský, Petr (advisor) ; Rod, Aleš (referee)
This bachelor thesis examines the impact of online advertisments created using Flash technology on the environment in the U.S. and then compares it to influence of production of PET bottles on the environment in the U.S.. The thesis describes the functioning of the flash ads. In the analysis there are compared the carbon footprint left-out of the difference in electricity consumption in the enabled and disabled Flash ads and production of PET bottles. The aim of the analysis is to compare the costs of flash advertising and PET bottles in term of environment and to consider revenues resulting from them and to answer the question whether the flash advertisement market is not regulated only because it does not seem originally to damage the environment as much as PET bottles does, and if it should not be regulated.
|
|
|
Increasing the efficiency of the production process in Metal Holding Ltd.
Zacharčenko, Jevhenij ; Svobodová, Hana (advisor) ; Mejdrech, Vlastimil (referee)
The present thesis is dedicated to improving efficiency in a producing company. The thesis is based on a detailed analysis of operation of the company Metal Holding Ltd. active in the field of metal processing and waste recycling. The goal is to evaluate various proposals for raising efficiency in order to help making a decision about either acceptance or rejection of options and to show practical application of various methods how to increase operational efficiency on the example of a real business. The work includes qualitative and quantitative analyses of various options, which are also investment projects, in order to assess their effectiveness and potential. The first part provides an introduction to the topic, explains the basic concepts related to the above-mentioned field of business, creates a theoretical basis for the thesis. The second part introduces Metal Holding company, covers various aspects of its operation and describes the technologies currently applied. Next chapter contains a detailed description of the proposed actions and the reasons for their eventual implementation. Finally, the application part concentrates on quantitative evaluation of the proposals from the point of view of efficiency and helps select one of the options. The contribution of this work is demonstration of various methods how to improve efficiency of production on the example of a real company. The work presents the business, the field of hard metal recycling and some innovative ideas. It has also become a valuable source of information for the discussed company, the results of the research helped the management to make the investment decision. During work on this thesis various methods of primary and secondary research, from study of professional literature to direct measuring of various parameters in the company, were applied.
|
guest ::
