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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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Sewage sludge incineration
Švehlová, Tereza ; Frýba, Lukáš (referee) ; Bébar, Ladislav (advisor)
The master´s thesis deals with the problem of sewage sludge from wastewater treatment plants and their subsequent incineration. Main aim is compare some possibilities of the energy use of mechanically dewatered sewage sludge and sewage sludge with previous anaerobic pre-treatment for various levels of drying sludge.
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Importance of heat supply from waste-to-energy plants
Kopecký, Václav ; Janošťák, František (referee) ; Putna, Ondřej (advisor)
This thesis is focused on identifying main factors influencing economical rentability of energy generated using incineration of municipal waste. Research was conducted focusing on municipal waste management, waste-to-energy possibilities and the issue of district heating systems, which are important considering the economy of waste-to-energy plants. Main limiting factors were identified using mathematic models adjusted for specific geographic locations.
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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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Balance of energy recovery waste
Rovný, Jan ; Špiláček, Michal (referee) ; Baláš, Marek (advisor)
The way waste is handled is a topical and sensitive issue on a long-term basis, especially in connection with the energy use of (mixed) municipal waste. Despite the very variable composition and properties, municipal waste is after homogenization a potentially energy efficient fuel that saves primary energy sources and thanks to efficient flue gas cleaning systems is environmentally friendly. There is still a large amount of municipal waste in the Czech Republic, but there are more efficient ways of processing – recycling, composting and energy utilization. The aim of the thesis is to analyze the properties of municipal waste as a raw material, to compare the methodology of statistical measurement from various sources and then to objectify the balance of waste in the Czech Republic. The last aim is the search of waste energy recovery facilities in the Czech Republic and describe balance of energy-using waste in these facilities.
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Energetical utilization of waste, especially sewage sludge
Havlásek, Martin ; Kuba, Pavel (referee) ; Frýba, Lukáš (advisor)
This bachelor´s work discusses about energetical utilization of sewage sludge. The process is described from sludge treatment to flue gas cleaning. The main emphasis is on incineration, which are governed by legislation. First are listed sludge treatment and utilization technology which included thermal processing in which is thoroughly described the process of incineration. The following are methods for co-incineration of sludge and devices for direct incineration. Work is finished by chapter about flue gas cleaning.
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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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Integration of material and energy utilization of sewage sludge
Zakov, Tomáš ; Brummer, Vladimír (referee) ; Krišpín, Jan (advisor)
This master thesis deals in first part with options and trends on field of municipal sewage sludge management. Further thesis describes legislation in relation with sewage sludge and its incineration in European union and also in Czech republic. Second part of thesis deals with design of mechanism for material and energetic use of sludge. In design is progressively processed chioce of aparates and material and energetic balance. This data are further used for mechine technical solution of the unit. Disposition of the unit is done acording to chosen and calculated parameter of chosen aparates. Economical evaluate of project if based on investment and operation costs and capacity design of unit in the end of thesis.
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Absorption cycle in the heating industry
Pleva, Ondřej ; Fiedler, Jan (referee) ; Pospíšil, Jiří (advisor)
Goal of this thesis is to introduce technology of absorption heat pumps in various modifications. Technical design draft is created for chosen modification (single stage unit water-LiBr) and based on given parameters calculated in computing software EES (engineering equation solver) and process is explained step-by-step. Following part of thesis contains reference design draft of heat plant and this design is used to demonstrate several different options of applying absorption heat pump including version capable of providing also cooling. Those options are compared with each other from technological and economical stand point.
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Importance of heat supply from waste-to-energy plants
Kopecký, Václav ; Janošťák, František (referee) ; Putna, Ondřej (advisor)
This thesis is focused on identifying main factors influencing economical rentability of energy generated using incineration of municipal waste. Research was conducted focusing on municipal waste management, waste-to-energy possibilities and the issue of district heating systems, which are important considering the economy of waste-to-energy plants. Main limiting factors were identified using mathematic models adjusted for specific geographic locations.
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