National Repository of Grey Literature 8 records found  Search took 0.00 seconds. 
Evaluation of the recycling potential of industrial waste in the Czech Republic
Kuba, Josef ; Pilnáček, Vojtěch (advisor) ; Innemanová, Petra (referee)
This bachelor's thesis deals with the determination of the amount and type of unused industrial waste in the Czech Republic, the evaluation of the waste recycling potential and subsequent methods of its recycling. Part of the work was the analysis of data from the ISOH working database (PDISOH) from 2019. The analysis focused on the amount of industrial waste production in the Czech Republic and then examined the amount of industrial waste that was disposed of by landfill or incineration (without energy use). The analyzed wastes were divided in the chapters according to the groups of their recycling possibilities. Each chapter contains a description of the methods of recycling waste groups and further refers to tables created by the author describing the names of the wastes, their waste codes, how much of the given waste is removed annually by landfilling and incineration (without energy use), the recycling potential, the available recycling potential that separates the specific wastes, which can be recycled using the described methods. The chapters also contain temperature maps of the Czech Republic, drawn up by the author, with the locations of the described industrial wastes shown in the tables. The results showed that up to 45,37 %, accordingly 3 432 866,8 tons of the total production of 7 564 897,35...
Lactic acid bacteria in biowaste management processes
Šilingerová, Lenka ; Innemanová, Petra (advisor) ; Pilnáček, Vojtěch (referee)
This bachelor's thesis provides a comprehensive study in the field of bio-waste management, focusing on the processes used in this field, including the micro-organisms involved, such as lactic acid bacteria. This thesis focuses mainly on the description of various methods and technologies that enable efficient and sustainable processing of bio-waste and its transformation into value-added products. It also points to the use of microorganisms in the fermentation and decomposition of organic materials in order to minimize waste and obtain valuable by-products such as organic fertilizers or biogas. In addition, the possibilities of using these products in various sectors, such as agriculture and industry, oriented towards their economic and ecological sustainability, are presented. This work also explores the possibilities and efforts to incorporate or replace these innovative methods in practice and suggests new ideas for future research and development in the area of using value-added products obtained from sustainable bio-waste processing. Key words: lactic acid bacteria, biowaste, sanitation
Identification and investigation of key biotic and abiotic factors in sewage sludge bio-drying process
Pilnáček, Vojtěch
The work is focused on the pretreatment of sewage sludge after anaerobic stabilization by the process of biodrying. Biodrying is a process in which the organic substrate undergoes aerobic decomposition and at the same time, due to the increased temperature and the blowing air, it is dried. The aim of the work was to optimize the most important process variables, to verify whether the process is suitable for pretreatment of sewage sludge before use as fuel or fertilizer in the context of Czech legislation and to investigate which groups of organisms and how they participate in the degradation of endocrine disruptors. For these purposes, quarter- and semi- operational bio-drying reactors were designed. The results of the work show that the most important process parameters are the aeration rate and temperature as its dependent variable and the substrate composition. The setup with a fixed time interval of blower switching was found to be the optimal aeration regime. The optimal substrate composition was a 5:2 ratio of sludge:birch chips. The results of the work further show that the bio-drying process is suitable for the preparation of fuel for co-incineration with other material. It is not very suitable for mono-incineration due to exceeding emission limits. The calorific value of the resulting fuel...
Identification and investigation of key biotic and abiotic factors in sewage sludge bio-drying process
Pilnáček, Vojtěch ; Innemanová, Petra (advisor) ; Najmanová, Petra (referee) ; Wrzecionko, Jakub (referee)
The work is focused on the pretreatment of sewage sludge after anaerobic stabilization by the process of biodrying. Biodrying is a process in which the organic substrate undergoes aerobic decomposition and at the same time, due to the increased temperature and the blowing air, it is dried. The aim of the work was to optimize the most important process variables, to verify whether the process is suitable for pretreatment of sewage sludge before use as fuel or fertilizer in the context of Czech legislation and to investigate which groups of organisms and how they participate in the degradation of endocrine disruptors. For these purposes, quarter- and semi- operational bio-drying reactors were designed. The results of the work show that the most important process parameters are the aeration rate and temperature as its dependent variable and the substrate composition. The setup with a fixed time interval of blower switching was found to be the optimal aeration regime. The optimal substrate composition was a 5:2 ratio of sludge:birch chips. The results of the work further show that the bio-drying process is suitable for the preparation of fuel for co-incineration with other material. It is not very suitable for mono-incineration due to exceeding emission limits. The calorific value of the resulting fuel...
Study of biodrying technology for MSW
Pilnáček, Vojtěch ; Benešová, Libuše (advisor) ; Innemanová, Petra (referee)
Main objective of the work was to design and construct a model biodrying reactor and to try out two aeration regimes. Additional objective was to asses usability of the process for Czech waste. Model reactor was successfully designed, constructed and put into operation. Two different aeration regimes were examined: regime controlled by oxygen concentration and regime controlled by temperature in upper layer of the reactor. Better results in light of net calorific value and moisture elimination had regimes controlled by temperature in upper layer of the reactor. In light of energy budget regime controlled by oxygen concentration n. 2 performed better. Results strongly depend on composition of waste (organic fraction content) and ambient air moisture. On the basis of these results new interesting questions arise. Czech waste is energetically usable for processing by biodrying. From economic point of view insufficiency of market for produced fuel is a main problem.
Study the treatment of medical waste in CR and EU
Pilnáček, Vojtěch ; Benešová, Libuše (advisor) ; Zimová, Magdalena (referee)
Domain of medical waste includes a few sub domains. Firstly it is legislation of handling with medical waste, which is nowadays in European Union fractionalized in different laws. Then it is sub domain of technical solutions of handling with medical waste. This sub domain comprises of many options as preventing of generation, recycling, conversion and disposal of medical waste. Last domain is data about production and handling with medical waste. Area of collected data is limited on member states of European Union. The data are unfortunately difficult to access and relatively incomplete and unreliable. The thesis contains accessible information in these sub domains. Conclusions of the thesis are assessment and a few recommendations for amelioration of present state in the area.
Study of biodrying technology for MSW
Pilnáček, Vojtěch ; Benešová, Libuše (advisor) ; Innemanová, Petra (referee)
Main objective of the work was to design and construct a model biodrying reactor and to try out two aeration regimes. Additional objective was to asses usability of the process for Czech waste. Model reactor was successfully designed, constructed and put into operation. Two different aeration regimes were examined: regime controlled by oxygen concentration and regime controlled by temperature in upper layer of the reactor. Better results in light of net calorific value and moisture elimination had regimes controlled by temperature in upper layer of the reactor. In light of energy budget regime controlled by oxygen concentration n. 2 performed better. Results strongly depend on composition of waste (organic fraction content) and ambient air moisture. On the basis of these results new interesting questions arise. Czech waste is energetically usable for processing by biodrying. From economic point of view insufficiency of market for produced fuel is a main problem.
Study the treatment of medical waste in CR and EU
Pilnáček, Vojtěch ; Benešová, Libuše (advisor) ; Zimová, Magdalena (referee)
Domain of medical waste includes a few sub domains. Firstly it is legislation of handling with medical waste, which is nowadays in European Union fractionalized in different laws. Then it is sub domain of technical solutions of handling with medical waste. This sub domain comprises of many options as preventing of generation, recycling, conversion and disposal of medical waste. Last domain is data about production and handling with medical waste. Area of collected data is limited on member states of European Union. The data are unfortunately difficult to access and relatively incomplete and unreliable. The thesis contains accessible information in these sub domains. Conclusions of the thesis are assessment and a few recommendations for amelioration of present state in the area.

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