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Utilization of waste in the context of current legislative measures and principles of circular economy
Dočekal, Petr ; Vymazal, Petr (referee) ; Chorazy, Tomáš (advisor)
This bachelor thesis deals with the use of selected types of waste under the conditions of current legislation in force in the Czech Republic. It focuses on plastic packaging waste and sewage sludge – waste generated from municipal wastewater treatment. The aim of the work was to process a search of current legislation and strategic documents in the field of waste management in the context of the principles of circular economy and then design and then critical evaluation of the optimal system of utilization of the above waste based on the principles of circular economy. Both its strengths and weaknesses as well as basic economic parameters were described. The first part of the work is a description and current methods of waste management and search for legislation and strategic documents at the EU and Czech level. In the second part, the optimal circulatory method of waste management is designed and evaluated. A delivery system is currently in place for plastic packaging waste. The bachelor work deals with a new system of taking back PET bottles and compares their strengths and weaknesses. For the sewage sludge, drying and subsequent pyrolysis were chosen as the optimal treatment method, which seems to be a very efficient method.
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Legal aspects of the circular economy
Kučerová, Zuzana ; Sobotka, Michal (advisor) ; Falteisková, Sabina (referee)
Legal aspects of the circular economy Abstract The diploma thesis deals with the issue of legal aspects of the circular economy. This concept is based on resource efficiency with the intention to minimize waste generation. This approach is considered to be the future of economies not only in the European Union, but also in the rest of the world. The thesis aims to provide a comprehensive overview of the circular economy and the legal background of this concept in the EU and the Czech Republic. Given that the legislation of the circular economy has so far been reflected at the EU and national level predominantly in the field of waste management, it forms a significant part of this thesis. The projection of the principles of the circular economy into the legal order as well as the future development of this concept is evaluated. Recognized advantages and disadvantages in the current circular economy legislation are formulated at the end of the thesis. Subsequently, the thesis sets recommendations for the future direction of the circular economy and for its efficiency enhancement.
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Specifics of building design from recycled building materials
Dobrovolný, Petr ; Pifko, Henrich (referee) ; Innemanová,, Petra (referee) ; Žabičková, Ivana (advisor)
Nowadays, the developed societies increasingly adhere to the ideas of sustainability, which also include the issues of raw material intensity and waste management. EU countries declare their intention to move towards so-called circular economy, where production, consumption, waste management and the market of secondary raw materials function in predominantly closed cycles. Due to its high share of raw material consumption and the amount of waste generated, the construction industry is one of the priority sectors in which these changes should take place. Consequently, the interest in recycling of construction and demolition waste will probably grow. This thesis examines the chosen topic from the architect's point of view. The issue of recycling of building materials is dealt with in the context of contemporary construction industry. The introductory part describes main material flows: the most used building materials, the method of waste management and the possibilities of its further use. The relationships between the design of the building and the production of construction waste are defined. The issue of building with recycled building materials is handled in more detail. In the main part, the design of a model object made of recycled building materials is elaborated. The individual building structures are analyzed in terms of the suitability of the use of recycled building materials and waste management after the end of a lifecycle of the building and a comparison is made with alternative structures made of conventional building materials. At the end of the work, an evaluation of the usability of recycled building materials in building structures and their economic potential is performed. There is also an evaluation of the specifics of working with recycled building materials in the design of the building.
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Acquiring of phosphorus from sewage sludge
Boubínová, Marie ; Chorazy, Tomáš (referee) ; Hlavínek, Petr (advisor)
The diploma thesis is focused on phosphorus recovery from sewage sludge. In the first part of the thesis, research of phosphorus recovery from sewage sludge is explained. Reusing of phosphorus, a critical material of mankind, is expressed with the principles of the circular economy. The second part of the thesis defines the potential of phosphorus extraction from sewage sludge from medium-sized (Trutnov WWTP) and large (Modřice WWTP) wastewater treatment plant and a technical and economic study of the proposed phosphorus recycling system at these wastewater treatment plants is described.
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The Benefit of the Waste Management
Marek, Martin
This article aims to highlight the importance of construction demolition waste management. The emphasis is on fulfilling the principle of circular economy. CDW is the largest mass flow of waste in the EU, which is why the EU is gradually introducing measures to reduce construction waste production. The article analyzes data from the CZSO and EUROSTAT on waste production, which allow to compare separately branches of construction production: building construction, civil engineering and specialized construction. The data will be compared with national economic performance indicators. By comparing the size of CDW production with GDP, the degree of their interdependence will be determined. The aim of the analysis is to assess the link between the GDP of the country and the production of CDW.
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Assessment of Building in Terms of Carbon Footprint and Circular Economy
Budajová, Jana ; Vilčeková, Silvia ; Mésároš, Peter
The construction industry is the primary source of environmental impacts, especially the carbon footprint. Life cycle assessment (LCA) as an analytical method is used for quantifying the environmental impact of the investigated residential building. Life cycle costs (LCC) from the point of view of the circular economy create an economic model prioritizing reuse and recycling. The aim of this paper is to assess the residential building in terms of carbon footprint, using LCA analysis and circular economy, using LCC analysis. The residential building emits 1 756 tons of CO2e, which represents 41.35 kg CO2e/m2/year. The total estimated life cycle cost of the building in nominal terms is 1 694 699.61 €. This is the average total life cycle cost of 1 995.21 €/m2.
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Circular economy in the Czech surroundings - experience of companies and the view of experts
Leová, Leona ; Rynda, Ivan (advisor) ; Milerová Prášková, Dagmar (referee)
The diploma thesis deals with the concept of circular economy (hereinafter CE) and its application in several Czech and one multinational company. On these specific examples of companies, the work shows how circularity is achieved, with all the essentials of this fact, what support for the concept is offered in the Czech Republic and, last but not least, what obstacles and problems the companies face. Along with this practical experience, opinions by theoretical experts who deal with the issue in their profession are further examined. The aim of the work was to map the matter of use of secondary raw materials and other principles of CE in both practical and theoretical spheres of knowledge, and where possible, to compare these two views. Furthermore, the work focuses on the benefits of real use of the principles of CE in the Czech conditions from an environmental point of view. In its theoretical part, it first addresses the issue of waste in general, especially from the perspective of a global problem. It presents the development, current situation and forecast of the size of waste generation, including its impacts. Furthermore, it has introduced the concept of CE, its various concepts and definitions, together with the main principles. Subsequently, it presents the real adoption of the concept by...
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(MATERIAL) – CONSCIOUS DESIGN
Filípková, Valentýna ; Václavková, Maria Nina (referee) ; Tobola, Ondřej (advisor)
The online platform consciousdesign.cz, created as the output of the thesis, provides sources for possible conscious approaches to design. It consists of a database of innovative materials, research texts, related links and interviews with designers, material specialists, scientists and technologists. The website can serve as a starting point for students and designers who are interested in current possibilities and new ways leading to design that is responsible to nature and humans.
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Utilization of wastewater sluge to green infrastructure
Kozová, Barbora ; Ševčík,, Jan (referee) ; Hlavínek, Petr (advisor)
This bachelor thesis discusses the issue of use of wastewater sludge in green infrastructure in relation to the circular economy. Firstly, it summarizes wastewater treatment technologies and specifications of green infrastructure such as green roofs, walls, and others. Secondly, the thesis compares the affordability of different types of green roofs and green parking. The paper concludes with a final evaluation of the findings.
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