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Assessment of the suitability of PET flakes produced by PETKA CZ, Inc. company for the manufacture of granulates for food purposes
Šudomová, Lucie ; Kučerík, Jiří (referee) ; Čáslavský, Josef (advisor)
This thesis deals with the recycling of polyethylene terephthalate and its subsequent processing into the form of a regranulate meeting the parameters required for food use. A brief description of recycling technology, PET flake quality rating and input material contamination is provided. Additionally, legislation regarding recycling for food purposes is discussed and regranulation technologies are described. The suitability of these technologies for processing specific flake samples has been confirmed. In the experimental part, differences in the regranulate samples are compared using DSC and FT-IR. It has been found that there are no major differences between food quality samples. Tests were carried out on 200 PET bottles (bottle, label), on which the input material was divided into 16 groups. Groups that are unsuitable for recycling with this technology was defined. In addition, contaminants of the final product were examined. Their approximate composition was determined and the relationship between the labels of the bottles at the inlet and the impurities at the outlet was found. Appropriate solutions have been proposed to reduce this contamination
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Question of PET bottles recyclation: Current state and perspectives
Duliková, Michaela ; Stoupalová, Michaela (referee) ; Čáslavský, Josef (advisor)
This thesis is deals with the process of recycling of PET bottles from the sorting of waste up to the using of recycled material, so-called “PET flakes“. The attention is paid mainly to the process of the physical recycling. The dry recycling process is compared with the wet recycling process from the point of view of applied technology and quality with focus on the final product (PET flakes) from the wet recycling process. As the quality is concerned, presence of blockers and polyvinyl chloride, which causes the most serious problems during recycling, is discussed. Employed technologies as well as quality requirements for spinning, producing PET strapping band, recycling by the bottle to bottle form (B2B) and other possibilities of the usage of recycled materials are also described.
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The use of logistics in a manufacturing company
BODLÁKOVÁ, Alena
The graduation thesis deals with the use of logistics in the brewery Pivovar Protivín a. s. The paper presents a view of the current situation of Czech breweries in the Czech Republic as well as in the world. It maps the trends of recent years in the brewing industry and shows how Czech breweries have faced up the economic crisis. The results of Pivovar Protivín are presented and compared with the results of Svijany brewery. The distribution of Protivín brewery products is analyzed. Based on the analysis, the time frame of beer delivery to customers is made. Further on, the questions of the packaging management in Protivín brewery are dealt with. Breweries are specific for complex and expensive reverse logistics of returnable packaging. The question whether producing beer in PET bottles would be appropriate for Protivín brewery is studied. Determining the level of services provided for brewery customers is examined. According to the results presented here, the greatest demands on services provided by breweries appeared to be those by the customers in gastronomy sphere. Based on the questionnaire investigation, the standards in providing brewing services were set together. Finally, I suggested possible improvements that should lead to cost savings, greater flexibility of operations and competitive advantages for the Protivín brewery as well as for the whole K Brewery Group.
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