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The influence of energy mix on environmental impacts of waste management
Dočekalová, Veronika ; Kočí, Vladimír (advisor) ; Trecáková, Tatiana (referee)
This paper presents energy mix of Czech Republic and its effects on environmental impacts of waste management. Three technologies: landfilling without energy recovery and landfilling and incineration with energy recovery are assessed using LCA. Results for 1 t of mixed municipal waste are compared in 9 impact categories: abiotic depletion, acidification, eutrophication, global warming, ozone layer depletion, photochemical ozone creation, human toxicity, terrestrial ecotoxicity, freshwater ecotoxicity. Landfilling without energy recovery was evaluated as the most harmful technology to the environment, incineration as the most environmentally-friendly one. The use of Czech energy mix made impacts of the energy recovery technologies look lower, contrary to burdens of landfill without energy recovery that resulted higher. The influence of energy mix composition change is discussed further.
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Life cycle assessment of buildings
Mrkvičková, Kristýna ; Kočí, Vladimír (advisor) ; Hák, Tomáš (referee)
This bachelor thesis is focused on life cycle assessment of building construction. All impacts will be modeled on residential house in professional LCA software. Every single component of the building was evaluated with regard to their impact on enviroment. The output list each category of indicators and evaluation of the impact. It shows which environmental categories are most affected by building and where it would be useful to optimizme it. The family house presented by the typical new building was chosen for evaluation process. The product system was simulated by the GaBi 4 software tool, then it was evaluated using the impact categories of the CML 2001 - Nov. 09 characterization model. The theoretical part deals with the LCA methodology, explains the different stages and describes categories of impact. Furthermore, the global trends are discussed in terms of assessing the building lifecycle. At the end, the LCA study has shown that the biggest influence on the environment is caused by the service life of a product's lifecycle and water treatment contributes the most on this result.
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Ecotoxicity of mixed waste in Life Cycle Assessment
Lukáč, David ; Kočí, Vladimír (advisor) ; Burešová, Helena (referee)
Subject of the study is establishing ecotoxicity (in the form of EC50) and characterization factors (CF) of two real soil samples, contaminated by a mixture of heavy metals, by using terrestrial tests of ecotoxicity. The gained values are then compared to CF values nowadays used in life cycle assessment (LCA) studies and the differences are discussed. The heavy metals contents are assessed by sequential extraction with ICP-OES. To gain the EC50 values following organisms are used: enchytraeids Enchytraeus crypticus, collembolans Folsomia candida (determining inhibition of reproduction) and lettuce Lactuca sativa (determining inhibition of root growth). EC50 and CF values show higher ecotoxicity in the case of Vodárna sample than in the case of Rampa sample. A difference in CF assessment between the method of using terrestrial tests and mathematical method, which is used generally, is proved.
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Added value of green roofs
Hrachovina, Vojtěch ; Žák,, Antonín (referee) ; Petříček, Tomáš (advisor)
Introduction is focused on analyze green roof like a part of buiding construction, when thesis assembly principles of right proposal green roof layers. Main part describes characteristic properties green roofs at global impact. We get some added values after comparison with classic roof types. Master thesis consists of survey of added values of green roofs in these categories: life cycle assessment, microclima, outdoor climate, water retention. End of thesis devote to psychological effect of green roofs include questionnare about relationship between czech society and green roofs.
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Waste management system sustainability
Bravený, Adam ; Touš, Michal (referee) ; Pavlas, Martin (advisor)
The thesis proposes a new approach to assess sustainability of waste management systems. In the first part current mixed municipal waste (MSW) management system of the Czech republic is reviewed and promising MSW treatment techniques are introduced. In the second part a summary of literature on Life Cycle Assessment (LCA) approach to assess sustainability of MSW systems is provided. A new sustainability assessment model is proposed by implementing LCA to a current tool called NERUDA used to optimize waste management costing. It is demonstrated how to connect these two concepts in order to aquire a powerful tool for sustainability assessment.
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Building Life Cycle Costs
Bohadlová, Darina ; Marková,, Leonora (referee) ; Korytárová, Jana (advisor)
This diploma thesis deals with the life-cycle cost of the building for teaching and research. The theoretical part deals with the introduction of life-cycle cost method. A description ofdetermining life-cycle cost and procedure of processing. In the practical part of the budgetis prepared surveyed the building, which is divided into functional parts and the fixed costs of repair and reconstruction over the lifetime of the building. At the end of life are roughlydetermined the cost of demolition and waste removal. This whole process is summarized in the table, which sets the cost of operating the building throughout its life.
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Application of environmental product declaration of moulded plastic parts
Novotná, Blanka ; Remtová, Květa (advisor) ; Hadrabová, Alena (referee)
The diploma paper themed "Application of environmental product declaration of moulded plastic parts" concentrates on the area of optional instruments within the environment. The subject of the search is a life cycle assessment (LCA) applied to a plastic product supplied to the automotive industry. This method evaluates the impact of various phases of products on the environment, focusing on the phases of production of granulate, transportation and moulding of the product. Information regarding energetic and material inputs and outputs during previously mentioned phases of the product life cycle is essential. The LCA constitutes basis for a further optional instrument of the environmental policy, mainly to the environmental product declaration. This certificated declaration features the marketing instrument for the company and simultaneously shows the impact of the product on the environment and possibilities of improvement its environmental profile.
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Life Cycle Assessment (LCA) of Mixed Municipal Waste Collected in Frýdek-Místek
Hamšíková, Renata ; Remtová, Květa (advisor) ; Hadrabová, Alena (referee)
Diploma graduation thesis deals with analytical tool called Life Cycle Assessment (LCA). Paper explains this analytic tool and focuses on its possible application in municipal decision-making process. Thesis carries out specific application of Life Cycle Assessment (LCA) targeted towards disposal of mixed municipal waste collected from Frýdek-Místek city. Municipal waste management issues are mentioned in relation with Frýdek-Místek and year 2007. The aim is to analyze nowadays landfilling of mixed municipal waste done in Frýdek-Místek and to examine the possibility of incineration of mixed municipal waste in order to reach minimal total environmental impacts. The paper offers improvement suggestions based on extensive LCA study.
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