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Advanced Networkflow Models for Circular Economy
Pluskal, Jaroslav ; Klimeš, Lubomír (referee) ; Šenkeřík, Roman (referee) ; Pavlas, Martin (advisor)
The dissertation thesis on "Advanced Network Models in the Field of Circular Economy" addresses a crucial topic concerning the need for efficient waste management from an environmental perspective and the achievement of stringent legislative goals. Circular economy represents a complex chain of processes, including waste collection, sorting, recycling, and final disposal. Analyzing and optimizing this intricate process pose challenges, particularly due to various stakeholders and variables involved. Hence, the development of supportive tools and models is imperative to conduct detailed analyses and gain insight into the addressed issues. This work introduces a set of novel mathematical models, utilizing optimization algorithms to plan the necessary infrastructure for waste processing and effectively work with reported data, aiming for sustainable solutions within the circular economy framework. The contributions of these models are further demonstrated through specific case studies, showcasing their ability to optimize processes within the circular economy. These case studies confirm that network flow-based tasks have the potential to significantly contribute to waste management planning, facilitating the transition towards a circular economy.
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Municipal waste management in the context of the new Czech Waste Act
Kudela, Petr ; Pluskal, Jaroslav (referee) ; Kropáč, Jiří (advisor)
The subject of the thesis is the analysis of mass flows in municipal waste management in the Czech Republic and the preceding research of legislative documents related to the area of waste management with an emphasis on monitoring the legislative development of currently valid legislative documents in the legal area of the Czech Republic. As part of the description of the current state of waste treatment, a list of waste treatment facilities in operation was drawn up. Statistical data on waste production by municipalities in the Czech Republic and an estimate of the change in the financial requirements for waste collection and collection in connection with the legislative pressure to increase the share of separately separated components in municipal waste were prepared.
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Engineering Process Optimization
Pluskal, Jaroslav ; Hrabec, Dušan (referee) ; Popela, Pavel (advisor)
This bachelor's thesis deals with optimization with emphasis on Newsvendor model and its usage. An overview of basic terms and theory related to probability, mathematical analysis and optimization is mentioned at the beginning. The main aim of this thesis is to formulate a Newsvendor problem in its basic form and then demonstrate the impact of various demand distributions. After that the gained knowledge is used to solve a project of factory, for which we want to set optimal parameters. Software GAMS is used to model and solve the project.
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Rail transport in practice
Poul, David ; Pluskal, Jaroslav (referee) ; Gregor, Jiří (advisor)
The diploma thesis deals with railway transport describes its role in combined transport and compare key aspects with road transport. As part of the diploma thesis, a detailed database of railway tracks in the Czech Republic was created, on which the route planner was built with the possibility of setting waypoints. The route planner also includes the implementation of exclusion activities. A comprehensive technical-economic model of railway transport was created with four calculation models and detailed investment planning, thanks to which is possible to assess whether the purchase or lease of train sets is more advantageous when making investment decisions. Furthermore, a technical-economic model for the branch line was created. The last section deals with the created transport model for the catchment area for 8 localities and 5 types of transported waste/commodities. The transport model was used to evaluate two selected areas – the South Moravian Region and Kolín.
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Analysis of the location of collection points and containers for municipal waste
Silný, Marek ; Pluskal, Jaroslav (referee) ; Nevrlý, Vlastimír (advisor)
In waste management, it is crucial to design the collection network appropriately. This paper was aimed at identifying the main factors that influence the motivation of citizens to sort waste and, based on these factors, to design an optimized collection network for the recoverable components of municipal waste. A detailed research was carried out to describe the current legislation in the Czech Republic in the field of waste management, to explain the waste sorting and collection system and to find factors that could influence the motivation to sort based on previous studies. Based on this research, a questionnaire was then designed to assign importance to these factors and two networks were subsequently designed using different distance measurement methods. The paper found that sufficient capacity of a collection point was a more important aspect than the walking distance to that point. For the design of a collection network, it is not appropriate to consider the distance between collection points as the distance by air, but rather the distance by infrastructure.
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Advanced optimisation model for circular economy
Pluskal, Jaroslav ; Bednář, Josef (referee) ; Šomplák, Radovan (advisor)
This diploma thesis deals with application optimization method in circular economy branch. The introduction is focused on explaining main features of the issue and its benefits for economy and environment. Afterwards are mentioned some obstacles, which are preventing transition from current waste management. Mathematical apparatus, which is used in practical section, is described in the thesis. Core of the thesis is mathematical optimization model, which is implemented in the GAMS software, and generator of input data is made in VBA. The model includes all of significant waste management options with respect to economic and enviromental aspect, including transport. Functionality is then demostrated on a small task. Key thesis result is application of the model on real data concerning Czech Republic. In conclusion an analysis of computation difficulty, given the scale of the task, is accomplished.
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Waste management infrastructure in the context of European legislation
Arlet, David ; Putna, Ondřej (referee) ; Pluskal, Jaroslav (advisor)
This bachelor’s thesis aims to evaluate the contribution of waste management infrastructure and technologies that will play a part in the transition to circular economy. The introduction consists of the concept of circular economy and the European legislation on waste management. Furthermore it presents the waste management plan of the Czech Republic together with the methodology for reporting partial results and comparison of critical results with selected EU countries. The core of the thesis is an overview of the current processing infrastructure and potentially interesting new technologies that could help in the transition to a circular economy and thus achieve the ambitious objectives of the European Union. The outputs of the thesis can help to guide the future development of the waste management sector and thus provide a comprehensive insight into waste treatment issues, the objectives of which are mainly driven by European legislation in the context of set environmental milestones.
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Waste flows modelling and assessment of their treatment
Kolátor, Matyáš ; Smejkalová, Veronika (referee) ; Pluskal, Jaroslav (advisor)
The thesis deals with the description, analysis and reconstruction of waste evidence. Nowadays, more and more emphasis is put on the issue of waste management and its efficient use. Legislation has set demanding targets for increased waste recovery and the development of a circular economy. In order to achieve these objectives, it is necessary to plan and organize the structure of waste management strategically. Important decisions in the field of waste management are based on data and the production and processing of waste. The quality of waste data has a major impact on the success of the process. The aim of this thesis is to describe the system of record, but also the possibilities of improving and reconstructing invalid data. The core of the work is the testing and improvement of a data reconciliation tool REVEDATO developed at the Institute of Process Engineering. The computational tool is based on the mathematical apparatus of data balancing, for which the correct definition of the weights is crucial, which will be the main subject of the work.
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Analysis of the location of collection points and containers for municipal waste
Silný, Marek ; Pluskal, Jaroslav (referee) ; Nevrlý, Vlastimír (advisor)
In waste management, it is crucial to design the collection network appropriately. This paper was aimed at identifying the main factors that influence the motivation of citizens to sort waste and, based on these factors, to design an optimized collection network for the recoverable components of municipal waste. A detailed research was carried out to describe the current legislation in the Czech Republic in the field of waste management, to explain the waste sorting and collection system and to find factors that could influence the motivation to sort based on previous studies. Based on this research, a questionnaire was then designed to assign importance to these factors and two networks were subsequently designed using different distance measurement methods. The paper found that sufficient capacity of a collection point was a more important aspect than the walking distance to that point. For the design of a collection network, it is not appropriate to consider the distance between collection points as the distance by air, but rather the distance by infrastructure.
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Municipal waste management in the context of the new Czech Waste Act
Kudela, Petr ; Pluskal, Jaroslav (referee) ; Kropáč, Jiří (advisor)
The subject of the thesis is the analysis of mass flows in municipal waste management in the Czech Republic and the preceding research of legislative documents related to the area of waste management with an emphasis on monitoring the legislative development of currently valid legislative documents in the legal area of the Czech Republic. As part of the description of the current state of waste treatment, a list of waste treatment facilities in operation was drawn up. Statistical data on waste production by municipalities in the Czech Republic and an estimate of the change in the financial requirements for waste collection and collection in connection with the legislative pressure to increase the share of separately separated components in municipal waste were prepared.
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