National Repository of Grey Literature 174 records found  previous11 - 20nextend  jump to record: Search took 0.01 seconds. 
Plan for drought and water scarcity
Bakota, Filip ; Coufal,, Marek (referee) ; Kučera, Tomáš (advisor)
The aim of the diploma thesis is to describe and prepare the pilot plan for drought and water scarcity for the selected locality, according to the prepared amendment of water law. Recent years have shown that drought will play a significant role in water supply in the future. Therefore, the need for tools to provide procedures and guidelines for individual administrations is more than important. The first part of the diploma thesis deals with issues of drought and water scarcity, climate change and prospects for the future. The next section describes a plan for drought and water scarcity. In the next parts of the diploma thesis, there are procedures that can mitigate or completely avoid the consequences of drought. From this informations, a pilot study of the plan for drought and water scarcity for the town of Počátky is being prepared in the next part.
Research of Equipment for Sea Water Treatment and Other Applications
Hájek, Zdeněk ; Klemeš,, Jiří (referee) ; Odstrčil, Miloslav (referee) ; Jegla, Zdeněk (advisor)
As water resources are rapidly being exhausted, more and more interest is focused on the desalination of sea water and brackish water. Increasing amounts of fresh water will be required in the future due to the rise in population rates, increasing living standards and the expansion of industrial and agricultural activities. The thesis is concentrated on current issues of treatment of sea water, mainly the desalination based on the distillation principle, in order to develop a unit for seawater treatment. The aim is to develop a compact modular unit for seawater desalinate on based on the implementation and evaluation of experimental tests on the experimental unit. The solution includes an overview of systems for treatment of seawater, a discussion of structural and material aspects of the units, design and manufacture of the experimental unit and confrontation the calculated values with the results of experimental measurements.
Possibilities of removing metals from drinking water sources by water treatment processes
Marzinová, Kristýna ; Látal,, Milan (referee) ; Biela, Renata (advisor)
In my diploma thesis I focused on the issue of metals, their occurrence in drinking water sources in the Czech Republic and the possibility of their removal by water supply processes. Heavy metals degrade the quality of water resources, so more complex water treatment technologies are needed. The first part describes the metals, their properties, their significance and occurrence in water, then the possibility of removing metals using water supply processes. In the practical part of the diploma thesis I performed a laboratory experiment to remove iron, manganese and nickel by adsorption on selected filter materials, which are Filtrasorb F100, Filtrasorb F 400, Bayoxide E33 and GEH. The experiment was used to compare the effectiveness of selected sorption materials.
Using the tertiary degree for water treatment
Kovačíková, Kristýna ; Kučera, Tomáš (referee) ; Biela, Renata (advisor)
Bachelor thesis will deal with water treatment options with greater pollution, when it is necessary to include after the secondary degree even the tertiary degree. It will be create an overwiev of equipments, which are suitable under certain conditions as tertiary degree and will be worked out a study with using of this degree. As part of this work is to create an overview facilities that are suitable under certain conditions, such as tertiary degree and next a study of water treatment with the use of this degree. The study designed middle water treatment plant and two sedimentation tanks, four european and three active carbon filters.
Evaluation of the benefits of reconstruction at the water treatment plant
Zikudová, Markéta ; Nováková, Jana (referee) ; Kučera, Tomáš (advisor)
The subject of this bachelor thesis is a comparison and evaluation of the condition of the Nudvojovice water treatment plant before and after the reconstruction. The bachelor thesis gradually describes the basic concepts and general principles of treatment of raw water for drinking water. Specifically, the work describes the methods of raw water collection, technologies used in treatment plants, water quality indicators and types of water treatment plants. The work also describes in detail the Nudvojovice water treatment plant before reconstruction, which took place in 2018 and after. The work is mainly focused on the collection of raw water, changes in treatment technology and the quality of raw and treated water. The work also presents other than implemented solutions for drinking water treatment and then compares the status of the original and reconstructed water treatment plant in various respects.
Estimation of volatile organic matter by "head space - SPME" method in real samples of surface and drinking water
Chmelka, Milan ; Čáslavský, Josef (referee) ; Kupec, Josef (advisor)
Volatile organic compounds are mostly found in the water as contaminants of human origin. Theoretical part of the thesis is focused on characteristic and occurence of volatile compounds. At the same time it also deals with possibilities of their qualification and quantification. Extensive description have been focused to static head-space technique combine with solid phase microextraction. The objection of the experimental part was gaining experience with operating the device/instrument used for measuring. After locality selection could begin sampling and their analysis.
Operational and Technical Condition of Separation Equipment in Water Treatment Plants
Pešout, Jakub ; Roh, Robert (referee) ; Kučera, Tomáš (advisor)
The goal of this thesis was to determine the operational and technical parameters of the separation objects in water treatment. The first part is a theoretical and provides basic information on this issue. The second part contains the evaluation criteria created by the obtained information for individual objects and gained in practice by personal visits of selected treatment plants of water. In the last part we can find application of these criteria in water treatment in practice. There is also included the final evaluation of the researched condition.
Adsorption of natural organic matter (NOM) on granular activated carbon in the treatment of drinking water
Le Duc, Duy ; Mega, Jaroslav (referee) ; Dolejš, Petr (advisor)
In the first part of this thesis the methodic of lab trial was studied, which will be useful for studying adsorption of natural organic matter by activated carbon. As an optimal method of testing adsorption characters jar testing was chosen. Again as an indicator of organic contamination, it was decided to use permanganate chemical oxygen demand (in Czech CHSKMn) will be used. In the second part of this thesis the adsorption characters of eight types of granular activated carbon were studied. Those granular activated carbon came from two world produces, from company NORIT five type of granular activated carbon were tested: NORIT GAC 1020, NORIT PK 1-3, NORIT GAC 1240, NORIT ROW 0.8 SUPRA a TOD NORIT ROX 0.8 and from company Chemviron Carbon three types of granular activated carbon were tested: F100 FE11120A, F400 FE11210A a TL830 FE2028B. Batch kinetic tests of natural organic matter adsorption were conducted with all types of granular activated carbon at first. For description of sorption not only the batch kinetic tests and duration needed for setting equilibrium were observed, but also the process decreasing of concentration of natural organic matters to the value of equilibrium concentration known as adsorption equilibrium was followed.
Analysis of water age in the water supply network of a selected area
Pellarová, Tereza ; Rajnochová, Markéta (referee) ; Ručka, Jan (advisor)
The bachelor thesis deals with the issue of water age in drinking water distribution system. The theoretical part discusses the factors influencing the age of water and the quality of delivered water, and also the way in which the age influences the quality of water. Furthermore, the methods of age determination are mentioned, as well as indicators of high age. The consumption of mains water and water prices in Europe are also discussed. The practical part of the thesis focuses on the analysis of the age of water in the water supply system. The data needed for the analysis was obtained by means of the EPANET 2.2 tool, in which simulations were performed for periods with different water consumption, including the annual average, summer (July, August) and winter (January, February). After the simulation, the data were entered into MS Excel and then statistically processed and evaluated. The aim of the practical part was to find the correlations of the factors acting in the network. The age/velocity and age/flow rate were examined in the water main sections. The relations between age/consumption from the nodes and age/pressure were examined in the nodes of the network. All data were monitored within the constant age intervals occurring in the municipality´s shared water supply system.
Removal of metabolites of pesticides from groundwater during treatment for drinking water
Vaněk, Michal ; Repková, Martina (referee) ; Král,, Pavel (advisor)
The diploma thesis deals with the evaluation of the efficiency of pesticide metabolite removal at a water treatment plant. In the introduction, a research on the issue of pesticide substances in raw water, their removal during the treatment to drinking water and the basic classification of pesticides is made. The thesis includes an introduction to the issues at a specific water treatment plant, technological changes at the water treatment plant, tabulated and graphically processed measured values of pesticide metabolites in groundwater source and drinking water. In the conclusion of the thesis, individual pesticide metabolites are discussed, their sorption on granular activated carbon is assessed and conclusions are drawn.

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