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Secondary raw materials production from municipal waste
Kouřil, Čeněk ; Gregor, Jiří (referee) ; Kropáč, Jiří (advisor)
The main purpose of the bachelor thesis is to give an overview of the current system of municipal waste management and to demonstrate its techno-economical demands. To solve these objectives, an analysis of the current state in Czech Republic was carried out and a calculation tool was created to evaluate the overall techno-economical balance of the management system at the regional level. The results of the tool showed that it is expensive for municipalities to carry out waste management activities and would not be feasible without complex subsidies. The reader gets a basic overview of the current waste management system in Czech Republic and acquires knowledge of its partial techno-economical costs.
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Effective use of industrial waste in building materials
Szép, Melinda Klaudia Virág ; Mészárosová, Lenka (referee) ; Černý, Vít (advisor)
This bachelor´s thesis deals with one of current topics, namely to effective use of industrial waste in building materials. The theoretical part of this work presents changes in legislation of the Czech Republic in field of waste management system, explains the most important terms and defines each method of waste management. The main goal of this work was to formulate a methodological procedure for efficient use of industrial waste. The methodological procedure was compiled on the basis of elaborated base set of possible variants of waste utilization in the construction sector and a set of corresponding criteria of standards and legislative criteria. A table of elementary criteria has also been compiled for the better orientation in corresponding standards. The proposed methodological procedure was demonstrated on specific example, in fact on slag from municipal waste incineration. The slag was examined in two environments – one with standard laboratory condition and the second with controlled condition (8 % concentration of carbon dioxide and 80 % of relative humidity) – for better understanding of its behaviour. The expected acceleration of the aging process in the environment with controlled condition was confirmed based on the degree of carbonation. The expected reduction of volume changes of the sample exposed to the controlled condition was also confirmed.
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Kompostování jako způsob zpracování potravinových odpadů
Tóthová, Katarína
This master thesis focuses on waste and waste management, with an emphasis on biodegradable waste, specifically food waste. The thesis discusses the legislative regulations in the Czech Republic and the European Union. Among other things, composting is considered as a possible solution to the waste generated. The practical part of the thesis evaluates the final product of composters to which additives have been added to reduce odour. The additives were added to the waste collection bins. The added additives include citric acid, tea tree oil and lime. In addition, compost without additives was also evaluated as a control sample. The composting lasted for 12 weeks. The pH and electrical conductivity were evaluated throughout the composting process and then the final product, i.e. the mature compost, was evaluated using phytotoxicity tests. The results showed that although the compost met the required pH and electrical conductivity values, it was found to be highly toxic. Even at a compost concentration of 10%, inhibition of plant root growth was shown, making the compost inapplicable to soil. Furthermore, even compost without additives was found to be toxic, with the cause of toxicity apparently being the waste used and not the additives. In view of these results, further investigation of additives is still needed. This thesis contributes to a better understanding of composting as a way of treating food waste and shows the importance of systematic monitoring of the quality of the final product.
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Effective use of industrial waste in building materials
Szép, Melinda Klaudia Virág ; Mészárosová, Lenka (referee) ; Černý, Vít (advisor)
This bachelor´s thesis deals with one of current topics, namely to effective use of industrial waste in building materials. The theoretical part of this work presents changes in legislation of the Czech Republic in field of waste management system, explains the most important terms and defines each method of waste management. The main goal of this work was to formulate a methodological procedure for efficient use of industrial waste. The methodological procedure was compiled on the basis of elaborated base set of possible variants of waste utilization in the construction sector and a set of corresponding criteria of standards and legislative criteria. A table of elementary criteria has also been compiled for the better orientation in corresponding standards. The proposed methodological procedure was demonstrated on specific example, in fact on slag from municipal waste incineration. The slag was examined in two environments – one with standard laboratory condition and the second with controlled condition (8 % concentration of carbon dioxide and 80 % of relative humidity) – for better understanding of its behaviour. The expected acceleration of the aging process in the environment with controlled condition was confirmed based on the degree of carbonation. The expected reduction of volume changes of the sample exposed to the controlled condition was also confirmed.
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Secondary raw materials production from municipal waste
Kouřil, Čeněk ; Gregor, Jiří (referee) ; Kropáč, Jiří (advisor)
The main purpose of the bachelor thesis is to give an overview of the current system of municipal waste management and to demonstrate its techno-economical demands. To solve these objectives, an analysis of the current state in Czech Republic was carried out and a calculation tool was created to evaluate the overall techno-economical balance of the management system at the regional level. The results of the tool showed that it is expensive for municipalities to carry out waste management activities and would not be feasible without complex subsidies. The reader gets a basic overview of the current waste management system in Czech Republic and acquires knowledge of its partial techno-economical costs.
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Project metods utilization /disposal waste from selected machine works
Šíma, Kamil ; Nekvasil, Richard (referee) ; Novotný, Pavel (advisor)
The topic of my master’s thesis is waste management issue in selected engineering company with focus on industrial wastes. With use of information gained from selected engineering operation there is mentioned its brief characteristics, details about individual operations and products, impact of company activities on environment, facts about quantity of produced wastes and summary of current ways of waste management. On the basis of review of gained information there are suggested measures in the master’s thesis which realization would mean not only increase of material and energy utilization of produced waste, increase of degree fulfilment of waste economy and decrease of quantity of wastes placed in dump, but, in the long term, betterment of economical situation of company and its image.
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Využití stavebních a demoličních odpadů
Výzkumný ústav vodohospodářský T.G. Masaryka, Praha ; Svoboda, Karel
Studie obsahuje rozpracování návrhů: - jednotného systému posuzování jakosti recyklátů, - optimálního podílu recyklace z celkově vyprodukovaného stavebního a demoličního odpadu, - posuzování materiálového využití stavebního odpadu vzniklého při zřícení a demolicích budov po záplavách a povodních. Dále se zabývá identifikací technologických postupů pro recyklaci a nakládání se stavebními a demoličními odpady. Popisuje současný stav technologických a kapacitních možností využívání stavebních a demoličních odpadů v ČR (produkce stavebních odpadů, recyklace stavebních odpadů a příklady použití recyklovaných stavebních materiálů).
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