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Management of textile waste from housholds in Czech Republic
Nencková, Lucie ; Hadrabová, Alena (advisor) ; Lisa, Aleš (referee) ; Hájek, Miroslav (referee)
Proper consumer attitude towards textile products and optimal post-consumer waste management of textile waste is connected with many benefits. Despite this fact, little research has been conducted on these topics. Textile waste represented mainly by donated textile from households and its material flow in waste streams mirrors the behaviour of our consumer society as well as new technologies in textile and fashion industry. More information about consumer attitude and behaviour toward textile and textile waste is needed to provide suitable waste management processes according to the hierarchy of waste management, such as re-use and energy recovery, and to ensure sustainable development and minimal impact on the worlds wellbeing. This study takes into account not only waste management of textile waste, but also tries to understand all textile issues in a wider perspective. Particularly fashion industry is connected with many negative ethical aspects (e.g. sweatshops), and many environmental issues are connected with overproduction of lower-quality textile products. Proper handling of post-consumer textile products is only one of the product life cycle stages to be solved. The main goal of this study is to discuss the results of a consumer attitude and behaviour questionnaire toward textile and textile waste from households in the Czech Republic. The study also includes partial hypotheses and an analysis of interest groups as other possible sources of information to form proper textile waste management policy tools and strategies.
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Regression Analysis of Spatially and Time Distributed Data
Rosecký, Martin ; Hübnerová, Zuzana (referee) ; Bednář, Josef (advisor)
This thesis summarizes findings about municipal solid waste (MSW) forecasting. Basic information about linear regression and correlation analysis were described. Analysis of influencing factors was realized on municipality with extended competence level. The resulting models explain up to 99 % of variability. Final models of MSW per capita explain between 12 and 75 % of variability. Variability explained by model of MSW per capita is lower by 20 % than comparable study which however uses data that are not usually available. Models can be used in waste management and their simplicity is benefit for real usage.
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Heavy Metals Transfer during Waste Incineration
Karásek, René ; Noskievič, Pavel (referee) ; Kabát, Viktor (referee) ; Skála, Zdeněk (advisor)
The municipal solid waste (MSW) is a heterogeneous material that consists mainly of organic and mineral substances, metals and water. After thermal treatment this waste redistributes into individual incineration products. This also holds for the metals contained in the waste. This thesis deals with the behaviour of heavy metals and their compounds during the incineration process. Determining the percentage content of heavy metals from the waste entering the process of thermal utilization is practically impossible. The principal aim is to determine the amount of each heavy metal in the MSW from the incineration products. The opening sections of the thesis deal with waste, options of incineration, flue gas cleaning processes and also with the problems of the heavy metals in the environment. The next section introduces recent developments, what possibilities there are for determining the heavy metals in the waste and methods of data evaluation. The experimental part of the thesis introduces of a four-day measuring process that was conducted at the MSW incineration plant SAKO, Inc. The samples of the individual products of incineration were taken and after the laboratory analysis the results for the selected heavy metals were processed. The results include statistical data analysis.
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Analysis of Municipal Solid Waste Treatment Possibilities in Microregion
Ucekaj, Vladimír ; Ochodek, Tadeáš (referee) ; Klemeš,, Jiri (referee) ; Bébar, Ladislav (advisor)
n accordance with Council Directive 1999/31/EC implemented by Regulation number 294/2005 Sb., Czech Republic has agreed to reduce landfilling of biodegradable material contained in mixed municipal waste (BDMW) by 50 % in comparison with 1995 starting January 1, 2013. This causes several problems to municipalities as the issue of mixed municipal waste (MMW) treatment is not handled at any level of state administration. PhD thesis tackles the question which level of state administration - national, regional, or microregional or municipal - should be responsible for waste treatment and whether it is economical and efficient, or not.
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Waste-based renewable energy production
Strapko, Tibor ; Touš, Michal (referee) ; Pavlas, Martin (advisor)
Following diploma thesis deals with waste-based renewable energy production. Waste is a very heterogeneous mixture consisting of various materials with different origin. This can be either fossil or biogenic. The very substances with biogenic origin are considered renewable energy source with financial support from state. Therefore is nowadays tendency to develop a method, which can determine the biogenic waste ratio. The method, aside possible cheapest price and simplicity, should be also reliable and easy reproducible due to its usage. At the beginning, thesis focuses on the waste-to-energy facilities. Important part deals with legislative side of this topic. The reasons, why Czech Republic is behind with thermal waste treating are stated as well as Czech Republic’s obligations to European Union in the field of biodegradable municipal solid waste. Main part of thesis deals with different methods to determine biogenic waste ratio in municipal solid waste. Step by step are introduces 4 known methods, where especially sorting, balance and 14C methods are described closely. By each method are stated its major benefits and handicaps in case of using. Finally, the computational model, which is based upon balance methods equations, is introduced following with feasibility study of balance method for local conditions. The very end of the thesis brings comparison of each method results, general summary, where are results of this thesis stated and possible trends for future in this area of expertise, as well.
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Application of stochastic programming methods for the purpose of energy producing system
Šomplák, Radovan ; Mrázková, Eva (referee) ; Popela, Pavel (advisor)
This thesis deals with the evaluation of the strategic investment in the waste-to-energy plant development. The central supply of heat and the incineration plant connection can be provided for example by the distribution network. The objective is to find financially feasible solution regarding uncertain development of waste management and energy market. A heat supplies to district heating network significantly influences the strategic decision. A two-stage stochastic programming based on the scenarios and the GAMS software were applied to solve this task. The main contribution of this thesis is decision on crucial parameters of the waste-to-energy plant.
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Life cycle assessment of municipal waste
Vlach, Josef ; Slavík, Jan (referee) ; Jícha, Jaroslav (advisor)
The aim of this study is to present methodology life cycle (LCA) and Life Cycle Assessment of disposal the municipal solid waste chain. There is described the procedure of generation of the LCA studies according to the standards ČSN EN ISO 14 040 and ČSN EN ISO 14 044 in the first and second part. In the third part of this diploma there are described LCA analyses that have already been created. The software GEMIS (Global Emission Model for Integrated System) is described in the fourth part. The computer model GEMIS has been used as a calculation tool in this study. The fifth part of this study includes waste management and different kinds of disposal municipal solid waste. In this part is describe basic data about landfilling and incieration. There is shown LCA analysis of disposal municipial solid waste in the sixth part. Data processing was carried out by means of the software GEMIS 4.3. The results were interpreted for incineration and landfilling. Finally there is mentioned results for 1 TJ different elektrical energize to.
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Landfill Sites and Landfill Gas Risks
Klímová, Zdeňka ; Vávrová, Milada (referee) ; Valášek, Rudolf (advisor)
This work is focused on landfills and landfill gas that is created by decomposition of organic substances. Municipal waste, its origin, properties, practical use and risks related to landfill gas are discussed. At the end of the theoretical section the limits of explosiveness are specified. The practical section deals with the most important properties of methane and carbon dioxide. A photograph of a landfill site, located in Brno – Černovice, is included in the final section.
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Experimental reactors for combustion of biomass and municipal solid waste
Bialožyt, Michal ; Juřena, Tomáš (referee) ; Recman, Milan (advisor)
The main purpose of this thesis is background research about experimental reactors for combustion process research. Mainly semted on reactors with fixed bed for alternative fuels, such as biomass and municipal solid waste. Mathematical modeling of the combustion process with modern software products and its optimalization is not possible without input data gathering from these facilities. Thesis should serve as a source of information for building a new experimental reactor.
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Vliv socio-ekonomických faktorů na produkci komunálního odpadu
Kováčová, Alena ; Slavík, Jan (advisor) ; Drahovzal, Pavel (referee)
Diploma thesis examines the relationship between socio-demographic trends and municipal solid waste generation. It follows an increasing trend towards the integration of environmental, economic and social aspects to indicate the municipal solid waste generation at the present time. Not only gross domestic product, but also social indicators, household size and age structure have a significant impact on the amount of municipal solid waste. The topical aim of the thesis is to review the state of present knowledge regarding socio-demographic changes, analyse previously published models of municipal waste generation, identify socio-economic factors important for describing the amount of municipal waste at various levels in Czech Republic and observe broad scale of potential relationships. The observations and survey were made on two levels -- regional and city level. From the models obtained by working with various set of explanatory variables at regional level, one linear multivariate regression model with explanatorz power 90,20% was described in diploma thesis. It consists of one dependent variable -- municipal waste generation per household and five independent variables (net money income, household size, living costs per household per month, number of retired pensioners in household and households with net income below minimum subsistence). At city level, some parameters were just proved by correlation analysis, but they were not used as explanatory variables in regression analysis in order to obtain optimal model. Those used in regression analysis are number of inhabitants and number of people in main age groups. Regression index R2 indicates that this model explains 58,78% of the variability in total household waste generated in cities. To conclude, socio-demographic determinants of environmental protection are usually less relevant for explanation of fluctuations within waste management chain than psychological variables (attitudes, values, beliefs) and political factors. Anyway, literature review indicates that the investigations and assessment of future municipal waste streams should cover not only commonly used economic parameters, but also socio-demographic factors (Bach, 2003; Beigl, 2004; Řeháková, 2001).
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