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Risk Assessment of Textile Waste Management
Šindlerová, Vanesa ; Vymazal, Tomáš (referee) ; Hrabová, Kristýna (advisor)
This thesis deals with environmental risks arising from textile waste management. The introduction describes the context of textile problematics and maps the current situation of textile waste management. The main goal of this thesis is to determinate the environmental risks of low percentage of recycling. Recycling is one way of dealing with textile that mitigates the impact on the environment. For the evaluation of the causes and consequences of the researched problem are used Bow-tie analysis and Ishikawa’s diagram. The results of the work bring environmental risks resulting from the application of those selected methods. Part of the thesis is a questionnaire that evaluates the individual’s attitude to textiles. Results of the questionnaire reveals that not needed textiles are perceived as risk to the environment. At the same time, consumer behavior does not correspond with efforts to mitigate the identified impacts.
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Harvesting of materials from wastewater and sludge
Boubínová, Marie ; Chorazy, Tomáš (referee) ; Hlavínek, Petr (advisor)
This bachelor thesis is focused on the issue of recycling raw materials from wastewater and sewage sludge with emphasis on phosphorus. The first part of the thesis deals with the problems associated with resources of phosphorus, the use of the legislative and recycling of phosphorus. Then, physico-chemical and biological methods of phosphorus recycling from wastewater and products of their further processing at WWTPs are discussed. Phosphorus recycling is also described in terms of the circular economy, which is explained at the end of the first part of this thesis. The second part of this thesis is a technical-economic research for a specific WWTP over 50 thousand. PE in the Czech Republic. The available technologies for recycling phosphorus from wastewater, sewage sludge and sewage sludge ash are described alsonhere. Then, the technologies are compared and evaluated.
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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 use of asphalt recycled materials in the base and subbase layers of pavements
Tanečková, Pavlína ; Hýzl, Petr (referee) ; Stehlík, Dušan (advisor)
This thesis consists of theoretical and practical parts. The theoretical part gathers available information on the current state of construction and demolition waste management. This part discusses foreign experiences with SDW management, provides basic information on the introduction of circular economy. Equally important is the environmental impact, which is discussed from the perspective of Decree No 283/2023 Coll. It also provides basic information on construction and demolition waste and describes the recycling process. It also discusses the most common types of recyclates and their use in roads. The practical part of this thesis verifies the possibilities of using asphalt recyclates and their mixtures cemented with asphalt emulsion or hydraulic binder. The main objective was to verify the possibilities of using these recyclates in cemented subbase layers for urban roads. These possibilities were verified and then compared by means of laboratory tests. Finally, a comparison of cemented mixtures of asphalt recyclates with specific binder dosage and low temperature heating of the mixture for optimum compaction to the desired strength values using recyclates is made.
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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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Upcyklace a motivy vedoucí k uvědomělé spotřebě
Fričová, Dominika
The diploma thesis deals with motives that lead consumers to conscious consumption. The goal of the work is to design a communication campaign that will support the concept of upcycling among consumers and increase awareness of this issue. The theoretical part approaches the topic of circular economy, upcycling and waste management. The practical part examines the behavior of consumers and their motivation in the upcycling process. Based on the results of the quantitative and qualitative investigation, marketing communication is designed, which aims to support the concept of sustainable consumption and upcycling among consumers.
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Návrh nábytkového prvku s využitím materiálu vyrobeného z morskej trávy
Bellayová, Veronika
The bachelor thesis focuses on exploring the possibilities of using the material from seagrass Posidonia Oceanica for production of furniture. The aim was to design a furniture element made of this material that would meet the criteria for sustainable products to the maximum extent possible. For a better understanding of the concept of eco-design, a literature review on the subject was developed, summarising its practices, tools, and strategies. For the production and exploration of seagrass materials, it was also important to develop a literature review on the topic of bio composite materials, seagrass materials and an overview of their use in furniture design.Two types of adhesives were used in the production of the material and the resulting material was tested for bending characteristics, Brinell hardness and tensile strength perpendicular to the plane of the board. The properties of the fabricated material were compared with particleboard. In the process of designing a furniture element from the tested material, review on seagrass side tables was carried out. Subsequently, a custom design was created with construction solution and visualizations. Finally, a FEM analysis was created for the designed element to verify its stability.
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Návrh nábytkového prvku s využitím recyklovaného plastu
Obůrková, Pavla
The diploma thesis deals with the innovation of recycled plastic. With increasing production and consumption of plastics, awareness of their recycling also increases, which is causing discussion in the society. The aim of this thesis is to design and ma-nufacture an interior product using recycled plastic. The theoretical part is devoted to issues related to plastics, recycling technology, sustainability and the circular econo-my. It also illustrates the use of plastic and sustainable materials in product design. The thesis includes individual tests on selected types of recycled plastic focused on surface resistance. The project part deals with the comprehensive solution of a piece of furniture from development, across materials and procedures used, to the production itself.
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Cirkulární ekonomika podniku ve vztahu k jeho finanční situaci
Šátková, Petra
Natural resources are limited, and their consumption is increasing as the Earth's population grows. Today's economic system is linear, operating on the principle of 'take-make-dispose'. The transition to a circular economy, characterized by the 'take – make – recycle' principle, uses resources efficiently and reduces waste and pollution. However, implementing the circular economy requires significant initial investments. Therefore, if a company is planning to introduce elements of the circular economy into the business, it can be very beneficial to break down the company's financial situation. Financial analysis is an important tool to reach this aim. The thesis is divided into two parts. The first part is devoted to the circular economy, its differences from the linear economy and the MCI indicator, which can be used to measure the level of circularity of waste at a product or the whole company. In the practical part, the linear flow index of the most produced product in the firm is calculated based on the procedure described in the theoretical part. The second part of the thesis is devoted to financial analysis and its detailed theoretical description based on academic literature. In the practical part the financial analysis of BASEKO, spol. s.r.o. is calculated based on data retrieved from the financial statements in the period 2016-2020. From the financial analysis it was found that BASEKO is a financially stable enterprise on the market, which is not threatened by financial problems in the near future. The circular economy of the enterprise cannot be calculated due to the large variability of products. The index of linear flow of the product is 37%, which the author considers a very positive result. Finally, some recommendations are set out that could contribute to the prosperity of the company both financially and in terms of promoting the circular economy in the company.
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Úroveň cirkularity podniků v Irsku a Česku
Stříbrná, Veronika
This diploma thesis deals with the circular economy and its implementation in Ireland and the Czech Republic. The theoretical part describes the starting points from which the concept of the environment and its benefits for life and sustainable development are based. At the same time, the differences compared to the linear model of the economy are presented here. The work also describes the new strategies and programs of Ireland and the Czech Republic, which help the countries in implementing the circular economy. The analytical part of the work is devoted to the analysis of the development of the circular economy in the Czech Republic and Ireland. First, general indicators for the development of circularity are included in the analysis, then those focused on the level of enterprises are selected. The main goal of the work was to present the circular economy and evaluate its development in both countries and their companies.
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