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Circular economy using analysis of separated municipal waste
Plánková, Tereza ; Kropáč, Jiří (referee) ; Nevrlý, Vlastimír (advisor)
The bachelor thesis analyses the current state of waste management and presents legislation and changes in waste treatment. The ban on landfilling of usable waste from 2024 and the set recycling targets are the main reasons for analysing the production of the separated components. The thesis deals with revealing potential for increasing the material, or energy, recovery of waste. As a key waste stream, biodegradable waste has been identified due to its rapidly growing production for the future. Modelling of production dependence for territorial units was performed using statistical methods in STATISTICA software based on socio-economic factors. The resulting model for production determination was obtained by multidimensional regression analysis. Applying the model to individual waste producers will allow efficient planning of support assets from an economic and infrastructure point of view.
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Municipal Waste Production Analysis
Švarc, Vít ; Nevrlý, Vlastimír (referee) ; Kropáč, Jiří (advisor)
Thesis analyses the current state of waste management of Czech Republic and the issue of production of various kinds of waste. Real data about production and composition of waste flows of Jihlava have been used. In addition, thesis evaluates the impact of local conditions on production of isolated constituents of municipal waste within the town. Influences such as density of population, housing development or form of heating have been monitored. A method on the town level for estimation and evaluation of production of municipal waste is designed in the thesis. Tools such as descriptive statistics, correlative analysis or association rules are used.
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Mathematical models in logistics
Nevrlý, Vlastimír ; Holešovský, Jan (referee) ; Popela, Pavel (advisor)
The aim of the bachelor thesis is to model and generate test transportation networks, which are similar to real-world waste management networks. Several software tools (Mathematica, GAMS, Excel, VBA) are used to develop suitable procedures. The next task is to analyze dependence of computational complexity on the size of network by using statistical test computations. The existing original optimization model called NERUDA that supports decision-making in the eld of waste management is utilized. The obtained results are processed, analysed and interpreted in detail.
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Complex Waste Collection Models
Nevrlý, Vlastimír ; Šenkeřík, Roman (referee) ; Procházka,, Vít (referee) ; Stehlík, Petr (advisor)
The subject of this doctoral thesis is the solution of logistics systems in the context of waste management. The work begins with an extensive research in the field of modelling various situations from the waste transportation chain. There are presented multiple types of practical tasks in the area of operation research applicable to waste management. Their possibilities of extension and modification are analysed for use by investors, technical services or waste collection service providers. An essential part of the work is the identification of critical parameters in the waste collection at the level of municipalities and micro-regions. Based on practical requirements, challenges related to the improvement of decision-making and planning systems are defined. The available techniques proved to be insufficient for practical problems. For the area of changes and designs of collection systems (design and modification of routes, choice of the vehicle fleet, collection plan, etc.) there are no procedures that would include a whole range of operating conditions and parameters. The boundary conditions of the task affecting fundamental requirements are highly variable. The thesis presents a comprehensive approach, which is divided into several phases. The preparation and analysis of input data focused mainly on the creation of transport infrastructure, allocation of waste collection containers and their pairing to the network, which also reduces the size of the task. Furthermore, a procedure for compliance with the rules of the road was designed using a penalty function, and an algorithm for defining imaginary edges was implemented, which will allow distinguishing the frequency of collection on selected network segments. To reduce the size of the task, a segment clustering algorithm was also designed, which will enable the calculation of the collection even for larger areas. Input parameters related to operating time and fullness of collection containers are elaborated in greater detail, as they most influence the results of the task. A great benefit is also the algorithm generating the initialization solution from historical routes. As part of the related publishing activities, environmental criteria were defined to evaluate global and local impacts of waste transportation and treatment. The outputs of the thesis are used primarily for the analysis of collection systems, to support the deployment of waste containers, planning collection routes, time schedules and dimensioning the size of the vehicle fleet. The proposed algorithms were tested in several case studies, which proved the broad applicability of a comprehensive tool in the field of waste logistics. Although the thesis is focused on modelling the collection of municipal waste, the usability of the implemented procedures is possible in other areas of waste management or other sectors.
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Input data for municipal waste collection routes optimization
Kulich, Marek ; Nevrlý, Vlastimír (referee) ; Pavlas, Martin (advisor)
The aim of the thesis is to describe the systems of collection of separated waste as well as collection monitoring, which includes identification of containers, sensors and data transfer. The data is then summarized and analyzed for use in the optimization software that uses advanced ARP models. The practical part is devoted to the analysis of real data sets. On selected geographical area are determined the parameters of waste, the plan of the collection routes and their evaluation. The use of local infrastructure will be then shown by cartographic representations of the routes in the maps.
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Models and methods for routing problems
Nevrlý, Vlastimír ; Žák, Libor (referee) ; Popela, Pavel (advisor)
This master's thesis deals with mathematical model building for routing problems and ways to solve them. There are discussed and implemented deterministic and heuristic approaches that are suitable to be utilized. A big effort is put into building of the mathematical model describing a real world problem from the field of waste management. Appropriate algorithms are developed and modified to solve a particular problem effectively. An original graphical environment is created to illustrate acquired results and perform testing computations.
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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 composition and origin analysis for potential improvements
Kučera, David ; Kropáč, Jiří (referee) ; Nevrlý, Vlastimír (advisor)
The Bachelor’s thesis concerns analysis of composition and production of waste in households. It also introduces legal system regarding Czech municipal waste management and means of waste processing. Another part of the thesis consists of case study, which explains used methodology and describes collected data of selected waste types. The collected data on municipal waste production in Czech households are processed in MS Excel. The results of the statistical methods used for analysis show differences in production of individual municipal waste components in different types of households. The results also estimate the potential of municipal waste sorting.
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Modelling of logistics of inter-municipal waste transport
Kučera, Jiří ; Popela, Pavel (referee) ; Nevrlý, Vlastimír (advisor)
This diploma thesis focuses on the issue of inter-municipal waste transport. The main part of the thesis focuses on the development of a computing core designed to create a collection plan for selected municipalities forming a union. The computing core was created so that it could be integrated into a user-friendly web application. The creation of a computational tool is based on the theoretical foundations of graph theory, mathematical programming and heuristic algorithms. In this thesis, consecutive algorithms for clustering of address points, collection design for several types of waste with a heterogeneous vehicle fleet and for creating collection proposal for a several-week long collection plan were developed. The presented approach was tested on real data from an existing union of municipalities in the South Moravian Region.
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Logistic problems and their applications
Žlebek, Petr ; Nevrlý, Vlastimír (referee) ; Pavlas, Martin (advisor)
The thesis deals with transportation problems using optimization methods. The first part summarizes theoretical facts about the graph theory, mathematical programming, transportation problems and genetic algorithm. Those informations are used in the second part of the thesis where the specific transportation model dealing with waste collection management is described. The model is implemented in Matlab environment. Real data from the area of Czech republic are then applied to the model. Finally the results are throughly discussed.
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