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The enzymatic hydrolysis of waste paper - a source of raw materials for production of liquid biofuels
Lepař, Petr ; Stloukal, Radek (referee) ; Gabriel, Petr (advisor)
In diploma thesis the process of enzymatic hydrolysis of waste paper as a source for the production of liquid biofuels is discused. It follows directly the homonymous diploma thesis from Ing. Brummer, and it is based on the findings, which were solved and decided in previous work. In the theoretical part there is a summarization of basic information on the enzymatic hydrolysis of waste paper and the associated influences of various factors of the rate and degree of hydrolysis. Higher attention is paid to a waste cardboard and its pretreatment methods due to the maximalization of the yield of hydrolysis. The next part summarizes options of the fermentative production of biofuels, focusing on the method of simultaneous saccharification and fermentation, where the further appropriate organism for ethanol fermentation is discussed. The last part is about the technological process from the raw material input to the separation of ethanol. In the experimental section the pre-treatment of waste paper in order to maximize the efficiency of hydrolysis was examined. The best results were achieved using a vibratory mill. In addition, various parameters for simultaneous saccharification and fermentation were optimized using enzymes from Novozymes® company and the yeast Saccharomyces cerevisiae. The conversion rate of waste paper cellulose to reducing sugars was observed by spectrophotometric method by Somogyi - Nelson and the amount of produced ethanol was quantified using HPLC / RI. As a part of this thesis some conditions (amount of enzyme, substrate, nutrients, yeasts, temperature, pH, type of buffer) were optimized to maximize the effectiveness of the overall process. All experiments were carried out on corrugated cardboard, which was chosen as the most promising material for hydrolysis that was among the waste paper pulp in diploma thesis by Ing. Brummer.
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Tools for the Punching Process
Jelínek, Daniel ; Šrajer, Jan (referee) ; Peterková, Eva (advisor)
Elaborated project is focused on the study of die cutting/punching technology and its aim is research and comparison of machines and principles used, given to the processed material. Within the project, differences between two types of tools used are compared, namely for die cutting of cardboard sheets and punching of metal sheets. The project also includes a design of die cutting tool for pharmaceutical folding boxes with complete stripping tool and counter plate on automated die cutting press Bobst SPanthera 106 LE.
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Solutions to the Technological Stage of the Roof of the Winter Stadium in Litomysl
Kynclová, Veronika ; Liška, Pavel (referee) ; Mohapl, Martin (advisor)
Bachelor´s thesis deals solutions to the technological stage of the roof of the winter stadium in Litomysl. The work includes the technical report, drawing of the situation, statement of assessment, technological specification, drawing of the devide construction, schedule, proposal engineer reports, inspection and test plan, health and safety, ekonomic assessment of transport and itemized budget.
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Úložný nábytek z recyklovaného papíru
Dobrovolný, Lubomír
The work deals with storage furniture from recycled paper, due to sustainable design, the current excessive paper waste and low-cost living. In order for the product to remain on the market, it tries to combine the principles of solitaires with modular systems. Cardboard is intended as the final material. The work addresses the design, ergonomics and aesthetic appearance in the context of purchasing potential.
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Návrh nábytkového prvku z lepenky
Bělohlávková, Sára
The main purpose of the bachelor thesis was to use ecological material in the design, such as corrugated cardboard and to create a functional furniture element from it. The first part of the bachelor thesis contained theoretical knowledge, which included ecology, economics, ergonomics, recycling and the properties of paper and cardboard. In the second part, the practical part, the research and the production process of the design and the final product were described.
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Návrh a realizace nábytkového prvku z lepenky pro CNC výrobu
Zaplatílek, Ondřej
The thesis deals with the production of cardboard furniture using CNC machines. Overview of basic types of joints and constructions of furniture made of cardboard. Possibilities of suitable materials for CNC production with subsequent selection of possible cutting technology (plotter, laser). Another part of the work is the design and realization of the furniture element with respect to safety, simplicity and easy assembly.
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Tools for the Punching Process
Jelínek, Daniel ; Šrajer, Jan (referee) ; Peterková, Eva (advisor)
Elaborated project is focused on the study of die cutting/punching technology and its aim is research and comparison of machines and principles used, given to the processed material. Within the project, differences between two types of tools used are compared, namely for die cutting of cardboard sheets and punching of metal sheets. The project also includes a design of die cutting tool for pharmaceutical folding boxes with complete stripping tool and counter plate on automated die cutting press Bobst SPanthera 106 LE.
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Solutions to the Technological Stage of the Roof of the Winter Stadium in Litomysl
Kynclová, Veronika ; Liška, Pavel (referee) ; Mohapl, Martin (advisor)
Bachelor´s thesis deals solutions to the technological stage of the roof of the winter stadium in Litomysl. The work includes the technical report, drawing of the situation, statement of assessment, technological specification, drawing of the devide construction, schedule, proposal engineer reports, inspection and test plan, health and safety, ekonomic assessment of transport and itemized budget.
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The enzymatic hydrolysis of waste paper - a source of raw materials for production of liquid biofuels
Lepař, Petr ; Stloukal, Radek (referee) ; Gabriel, Petr (advisor)
In diploma thesis the process of enzymatic hydrolysis of waste paper as a source for the production of liquid biofuels is discused. It follows directly the homonymous diploma thesis from Ing. Brummer, and it is based on the findings, which were solved and decided in previous work. In the theoretical part there is a summarization of basic information on the enzymatic hydrolysis of waste paper and the associated influences of various factors of the rate and degree of hydrolysis. Higher attention is paid to a waste cardboard and its pretreatment methods due to the maximalization of the yield of hydrolysis. The next part summarizes options of the fermentative production of biofuels, focusing on the method of simultaneous saccharification and fermentation, where the further appropriate organism for ethanol fermentation is discussed. The last part is about the technological process from the raw material input to the separation of ethanol. In the experimental section the pre-treatment of waste paper in order to maximize the efficiency of hydrolysis was examined. The best results were achieved using a vibratory mill. In addition, various parameters for simultaneous saccharification and fermentation were optimized using enzymes from Novozymes® company and the yeast Saccharomyces cerevisiae. The conversion rate of waste paper cellulose to reducing sugars was observed by spectrophotometric method by Somogyi - Nelson and the amount of produced ethanol was quantified using HPLC / RI. As a part of this thesis some conditions (amount of enzyme, substrate, nutrients, yeasts, temperature, pH, type of buffer) were optimized to maximize the effectiveness of the overall process. All experiments were carried out on corrugated cardboard, which was chosen as the most promising material for hydrolysis that was among the waste paper pulp in diploma thesis by Ing. Brummer.
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