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Technology for removal of micropollutants from water
Voldán, Jakub ; Biela, Renata (referee) ; Kučera, Tomáš (advisor)
The issue of contamination of water sources by emerging micropollutants is an ongoing challenge for the water industry. This thesis is focused on the most common micropollutants such as pesticides, pharmaceuticals and endocrine disruptors (per- and polyfluoroalkyl substances, bisphenol A or phthalates). In addition, attention is given to water treatment technologies for the removal of these micropollutants from water treated for drinking purposes. These include adsorption on activated carbon, advanced oxidation processes and membrane processes. The practical part deals with the site Chroustov u Bohdalova, where above-limit concentrations of the pesticide acetochlor ESA have been observed. Subsequently, a design of a technological stage for the removal of the mentioned pollution is made for this site as a supplement to the existing water treatment technology at the Chroustov water reservoir.
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Water Treatment in a Nuclear Power Plant
Hoskovec, Martin ; Kracík, Petr (referee) ; Chýlek, Radomír (advisor)
This thesis deals with the issue of water treatment for nuclear power plants. The aim of the work is to analyse in detail the processes and technologies used in water treatment, which is crucial for the safe and long operation of nuclear power plants. In the first part, the possibilities of water sources and what substances they contain are presented. In the following part, water pretreatment methods, water demineralization and other treatment technologies are presented. The third part of the thesis deals with reactor partitioning and their chemistry program. The next part describes the water treatment with chemistry program at the Temelin nuclear power plant. The last part of the thesis compares water treatment methods, their advantages, and disadvantages.
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Various approach to control and preventive actions of Legionella Bacteria in Open cooling water systems
Švábová, Natálie ; Maršálková, Eliška (referee) ; Repková, Martina (advisor)
Legionella spec. is dangerous type of bacteria for humans, commonly found in aquatic environments. This bachelor’s thesis focuses on preventive and legislative measures addressing these bacteria in wates of open cooling systems. The first part describes basic properties of Legionella spec., diseases caused by these bacteria, and briefly comments on selected outbreaks. The next section is devoted to cooling systems, with a focus on open cooling systems. The final part describes legislative and regulatory frameworks for protection against Legionella bacteria in Germany, Poland, Austria, Slovakia, and the United Kingdom. The measures taken in the Czech Republic are also describes in detail. The comparison of the various legislative measures indicates that the Czech Republic should adopt measures concerning Legionella bacteria into its legislative framework.
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Digital twin skin of the drinking water treatment plant - development and use in practice
Sochorová, Helena ; Andreides, D. ; Hložanka, F. ; Prokopová, Michaela ; Stejskal, O. ; Chalupa, L. ; Šmejkalová, P. ; Dolejš, P.
The contribution presents experiences with the development of a digital twin for optimizing the control of the DWTP within the pilot project in the Železná Ruda locality. The digital twin consists of two components, i.e. digital documentation in the object architecture processed by the reverse engineering process, which is data-connected with the real physical infrastructure (virtual replica of the infrastructure) and a simulation tool based on a mathematical model or a neural network (simulation of the water treatment process). Both components are accessible to the user via a web application, in which one can choose from three operating states (monitoring of the real state - default, simulation of scenarios of operating settings and prediction of pressure loss).
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Use of capacitive deionization method for water treatment
Švábová, Martina ; Mergl, Václav (referee) ; Repková, Martina (advisor)
Capacitive deionization technologies have gained significant attention in recent years. The development and availability of a variety of materials have enabled the growth of research on electrosorption, which makes capacitive deionization increasingly attractive. This technology has a wide range of applications, such as softening, desalination and selective removal, each of which has been the focus of the experimental part of this work. The theoretical part is devoted to the issue of functioning of capacitive deionization, electrode material and especially the specific application. Water desalination is a major issue, given the global shortage of drinking water and the possibility of using capacitive deionization as a competitive method to conventional desalination methods. Conversely, softening and selective removal of ions can pose everyday problems both in the treatment of drinking water or pre-treatment of industrial water and in the treatment of wastewater. In this diploma thesis, it was proved that the method of capacitive deionization can be used to solve all the above problems. Although capacitive deionization is not a commercially available technology in the Czech Republic yet, it can be expected to be used more and more in the future.
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Use of Renewable Energy Sources for Water Recovery
Patera, Jan ; Vojtek, Martin (referee) ; Baxant, Petr (advisor)
The bachelor's thesis deals with a summary of the basic theory for obtaining water from air humidity and it‘s following treatment in order to meet the hygienic regulations of drinking water. It presents the basic principles usable for obtaining water from the air, also presents the basic principles, including a basic overview of existing equipment for obtaining water from the air. It defines ideal conditions for obtaining water using atmospheric water generators. In a specific locality is determined a proposal for the water yield with energy performance during the year. Furthermore, the work deals with the use of renewable resources in obtaining water and the possibility of its subsequent treatment.
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Strategy of Entrance of Company on Foreign Market
Gebauerová, Jaroslava ; Plšek, Martin (referee) ; Zich, Robert (advisor)
This thesis deals with strategies for firms entering the foreign market. In the theoretical part of the work the various strategies and their pros and cons are discussed, together with the dynamics of entering a new market. The analytical part of the work comprises an analysis of the Austrian market and an internal analysis of the company AQUAL Ltd. selected for the practical application. Its SWOT analysis and description of its entrance to a foreign market according to the SMART method are performed. Proposals are given the gradual development of the strategy of entrance, including the reasons for choosing a mixed strategy, and aspects of the operation and management of the company abroad are described; important is the definition of activities of the manager for Austria. Finally, conclusions are given summarizing the prerequisites and expected benefits of the entrance, the goals fulfilled and the contributions provided in this work.
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Assessment of the effectiveness of filter material DMI-65 on removing metals from water
Konečný, Jiří ; Hrich, Karel (referee) ; Biela, Renata (advisor)
The first chapter of diploma thesis discusses about various water processes which remove metals and metalloids compounds from water. A substantial part is devoted to filter materials, which include a new filter material DMI-65. Comprehensive chapter discribes characteristics, proporties and practical application of filter material DMI-65. The next chapter describes the process of pilot testing of material DMI-65 in the water treatment plant in Ivancice. At the end of the diploma thesis, the laboratory test of filter material DMI-65 is described, including the description of particular metals that are removed from the water and the compresion of the filter materiál DMI-65 with other selected filter materials.
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The application of chlorine for public swimming pool water disinfection
Wagnerová, Andrea ; Svoboda, František (referee) ; Biela, Renata (advisor)
The bachelor thesis focuses on issues surrounding disinfectants of swimming pool water. The dissertation examines various chlorine based disinfectants as well as chlorine free disinfectants. Part of the thesis compares advantages and disadvantages of different possibilities of securing hygienic swimming pool water. Several complexes of public swimming pools in Brno and its neighbourhood were visited in order to examine the methods of disinfection, which are currently used at those swimming pools. Disinfectants based on chlorine are currently used the most for swimming pool water.
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Removal of different species of phytoplankton by dissolved air flotation
Sukopová, Martina ; Mega, Jaroslav (referee) ; Dolejš, Petr (advisor)
The work evaluates the efficiency of dissolved air flotation (DAF) in removal of various kinds of phytoplankton. As absolutely necessary in the process of water treatment proved the agglomeration phase, or coagulation and floculation. This phase neutralizes the particles so that they can fasten air bubbles. The efficiency of this process depends on several variables, though: the kind of coagulant used, dose, coagulation pH, duration of floculation and its intensity, recycle ratio and the polymer use in coagulation. The particle size volume distribution and the volume of organic matter in raw water also have certain influence on phytoplankton removal. Dissolved air flotation is currently the most suitable method of phytoplankton removal. It can remove 93-98 % of blue-green algae and even 99-99.9 % of algae. The efficiency of flotation was also compared to sedimentation for the economic reason. In the process of water treatment, the sedimentation is now being replaced by flotation.
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