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Technical-economic evaluation of selected technologies WWTP´s up to 2000 PE
Kříž, Miloslav ; Raček,, Jakub (referee) ; Hlavínek, Petr (advisor)
The thesis deals with the technical and economic comparison of technologies for wastewater treatment plants 50-2000 PE based on the processing of selected data ownership and operational records (VÚME, VÚPE) for the years 2013-2015 provided by the Ministry of Agriculture of the Czech Republic. The first section presents an overview of the most important laws and standards of the Czech Republic for water management, describes the characteristics of municipalities to 2,000 inhabitants and operation of wastewater treatment plants up to 2000 PE.The second part evaluates the influence of different types of drainage systems on the quality of wastewater and the efficiency of wastewater treatment. Furthermore, this section deals with the influence of technical and economic comparison of the influence of sludge management concept.In the last part I work with studies and generators for calculating the cost of sludge treatment in larger WWTP, possibly for sludge dewatering and storage.
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Comparison of mechanical and biological wastewater treatment plants in terms of financial costs and environmental impact
Winkler, Ondřej ; Výskala, Miloslav (referee) ; Aigel, Petr (advisor)
The aim of this bachelor thesis is to analyse and compare the operating costs and quality of water discharged at mechanical-biological and root wastewater treatment plants. In the first part, the bachelor thesis deals with theoretical knowledge in the field of wastewater treatment. There is legislation related to WWTPs, types, quantities, and transport of wastewater, it also describes the process and technology of water treatment and, finally, the management of waste generated during treatment and its treatment. The following chapters are devoted to economic indicators of wastewater treatment plants as well as pollution indicators. This part forms the transition between the theoretical and practical part of the bachelor thesis. We will learn here what are the costs of operating the treatment plant and how these costs will be reflected in the calculation of sewerage. We will also learn here which pollution indicators are measured as part of the quality of wastewater discharged from the WWTP. In the following part, the bachelor's thesis deals with the analysis and comparison of the already mentioned costs of operation and quality of discharged water at different types of wastewater treatment plants. The analysis was performed at four root and six mechanical-biological wastewater treatment plants in a total of four districts. The conclusion of the bachelor thesis belongs to the global comparison within the Czech Republic and the evaluation of the goals of the bachelor thesis.
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Energy Optimization of WWTP
Frank, Ivo ; Sousedík, Milan (referee) ; Hlavínek, Petr (advisor)
Objectives of this bachelor thesis are to offer a brief tutorial on how to proceed with the energy audit of the wasterwater treatment plant and offer energy-efficient and economical alternatives to the technologies and equipment currently used for mechanical and biological wastewater treatment processes. Chapter with practical part of the thesis deals with possible applications of retreived knowledge on to operations of WWTP Mikulov in order to optimize its energy efficiency.
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Energetic utilisation of sewage sludge
Tlašek, Miroslav ; Stříteský, Luboš (referee) ; Hlavínek, Petr (advisor)
Diploma thesis deals with issues related to final treatment sludge. Sewage sludge is an inevitable product of wastewater treatment. Also, most of them concentrated pollution. Most of pollution are concentrated in to them. And because it contains a large percentage of combustibles. Before thermal utilization, it is necessary to appropriately adjust the sludge. Thermal sludge utilization offers the most effective method of energy recovery. It is an energy conversion in the sludge, to heat and electricity. In the vast majority, if not the co-firing, it is necessary to modify the sludge and so it is dried. This is the optimal use of modern technology. There are several variations possible use. Unfortunately it is not in general able to propose the most appropriate technology or methodology, how to make best use of sewage sludge. Specific assignment usually have their own characteristics. In my work I will therefore first try to outline possible technology and in the second part to suggest sludge terminal for WWTP Hodonín.
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Energetic use of wastewater sludge and microwave pyrolysis products
Šimek, Radim ; Ševčík, Jan (referee) ; Hlavínek, Petr (advisor)
The diploma thesis is focused on the energy utilization of sewage sludge before and after microwave pyrolysis process. The first part of the thesis deals with sludge management, treatment of sludge and its subsequent use or disposal. In the second part of the thesis prepared and modified samples of sludge from WWTP 1 and WWTP 2 are subjected to microwave pyrolysis process. Subsequently, samples are taken for analyzes to determine the total organic carbon, the specific surface area, the heavy metal content and the calorific values. The resulting data was processed in Microsoft Office Excel and presented at work. At the end of the thesis two case studies are then proposed for a specific design of the conceptual location of microwave pyrolysis for the sludge drying process and the drying process of the sewage sludge in the direct combustion boiler room.
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Failure rate wastewater treatment plants
Boryśová, Michaela ; Vlčková, Veronika (referee) ; Hluštík, Petr (advisor)
This thesis deals with the sludge management in wastewater treatment plants. It provides a basic overview of methods for modifying risk material in sludge ending. The main goal of this work is to create a fault trees based on faults which occurred in the sludge management facilities. Furthermore, it was created frequency of failures assessment of the objects on wastewater treatment plant in Hodonín. Provided information were obtained during excursions of WWTP Hodonín and Zbýšov.
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Co-incineration sewage sludge in the existing plant
Krejčí, Tomáš ; Ferdan, Tomáš (referee) ; Frýba, Lukáš (advisor)
This thesis focuses on problems with co-incineration of sewage sludge in existing plants. The introduction of my thesis deals with a brief summary of a sludge management, sludge treatment methods and subsequent utilizations methods used for sledge disposal. Next chapter contains a calculation of calorific value, depending on the water content and volatile substances in dry solids of the sludge, it offers an overview of devices applicable for thermal processing of sludge and a description of the co-incineration in existing plants. The seventh chapter is devoted to the legislative parameters which influence the ways of dealing with sewage sludge. After the thermal treatment of sludge it is necessary to decontaminate flue gases of harmful substances resulting from incineration process, thus following there is a description of the most important devices used for its elimination or its reduction. My work ends with a search of methods dealing with the thermal sludge utilization in foreign countries.
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Treatment of sludges from water treatment plants
Mach, Michal ; Kučera, Tomáš (referee) ; Biela, Renata (advisor)
The bachelor thesis focuses on the methods of disposal and the use of water sludge generated in the treatment of water used nowadays. The work is divided into a theoretical part and a practical part. The theoretical part is focused on the basic properties of sludge, its composition and getting acquainted with technological solutions leading to its treatment and disposal today. The practical part introduces the specific water treatment in the Czech Republic, and how specifically these treatment plants deal with the issue. Based on the practical part, it is possible to present more about how are these problematics in fact mostly solved.
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Možnosti využití vyhnilých kalů z městské čistírny k pyrolýze a jejich použití v sorpčních procesech na příkladu kyseliny šťavelové
PRAŽÁK, Jakub
This diploma thesis is focused on sludge management of waste water treatment plants. The research part of the thesis outlines the problems of sludge management in the Czech Republic and also deals with technologies and technical solutions related to the treatment and handling of sewage sludge for various purposes. Furthermore, the theoretical part describes the function of urban wastewater treatment plants and technological methods of wastewater treatment. I also focus on energy utilization of sewage sludge in pyrolysis processes. The result of these pyrolysis processes is called Biochar. Biochar is a carbon thick solid that arises from the pyrolysis of organic materials for application to soil and other uses such as biofuels. The carbon that remains in the solid forms stable aromatic structures that are more resistant to degradation in the natural environment. The mineral ash content of the original organic materials is preserved in the biochart and the volatile constituents of the raw material are lost during the pyrolysis process. In the second part of the work, the prepared and modified samples of the biochar are subjected to the determination of the sorption properties in order to determine whether the biochar is able to transfer the nutrients contained in it to the soil. If the biochar were able to transfer nutrients to the soil without any undesirable side effects, it could very much solve the problem of its future storage.
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