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Optimization of operating parameters in drinking water treatment plant in Bzenec-Přívoz
Sukopová, Martina ; Mergl, Václav (referee) ; Mega, Jaroslav (advisor)
Water treatment plant Bzenec Přívoz represents important supply of potable water for Hodonín district. After a longtime operation it was in 2008-2010 reconstructed in order to make water treatment technology more effective. The basic step was dividing technology into one stage and two stage water treatment for particular spring areas of ground water. The character of raw water requires effective removal of iron and manganese, therefore intensification and optimization of operating parameters were the purposes of the project. Installation of new aerators and hyperboloid stirrers in flocculation tank required an operating tests for proving of high technological efficiency while the operating costs were decreased. The water treatment process was completly automatized, which made the operation easy and minimized human element impact. Results of the reconstruction are more effective water treatment and a distinct decrease of operating costs.
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Treatibility of surface water
Fuks, Josef ; Palčík,, Jiří (referee) ; Kučera, Tomáš (advisor)
The aim of the master´s thesis is the topic of the treatability of surface water with the focus on the process of suspension formation. For this work I took water samples from five different places around the Brno Dam which has contended with water quality deterioration for a long period. With these water samples, the series of jar coagulation tests were done with the application of three different commonly used coagulants. In the theoretical part of the master´s thesis I deal with the composition and attributes of surface water and the technology of its treatment. Each process of treatment is briefly described here with the emphasis on the process of suspension formation. The experimental part of the master´s thesis summarizes and presents the results gained through the coagulation tests in the laboratory. I evaluate the influence of different parameters on final effectiveness of water treatment and I try to find an optimal amount of coagulant, pH and speed of fast or slow mixing. Finally I compare the suitability of each coagulant and the influence of the sampling site on the effectiveness of water treatment.
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Possibilities of wastewater reuse for irrigation
Kolajová, Lucie ; Kriška-Dunajský, Michal (referee) ; Hyánková, Eva (advisor)
Bachelor thesis is based on waste water treatment system and treated waste water reuse for irrigation in the Czech Republic and in the world. Thesis describes individual types of waste water treatment and differences between vertical wetlands and biomechanical water treatment plants and different quality of effluent. It also deals with the individual ways of using this water for irrigation or infiltration. The second part is focused on practical experiment. Subject of experiment is irrigation with treated waste water from constructed wetland in Drazovice village. Experimental fields are planted with technological crops and grass. Experiment investigates final concentration of COD and ammonia and their influent on the crops and groundwater.
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Reconstruction of Water Treatment Plant Babice
Valchař, Jiří ; Roh, Robert (referee) ; Kučera, Tomáš (advisor)
This study deals with a reconstruction of the water treatment plant. The First chapter gives a brief overview of iron and manganese common removal methods. The next chapter looks at technical condition evaluation of urban water networks and presents a new methodology TEA Water developed by Brno University of Technology, module TEAT-Water Treatment Plants in particular. Following chapters describes local water distribution system and current condition of the water treatment plant. The main aim of this thesis is to choose the best suitable technologies for water treatment in order to reduce high operating expenses, especially energy consumption and to reduce volume of backwash water.
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Removal of selected metals from the water
Pěkný, Mojmír ; Vybíralová, Pavla (referee) ; Biela, Renata (advisor)
In my thesis I focused on the problem of removal of some heavy metals from water. Heavy metals cause deterioration of quality of water sources and bring about a need of complicated water treatment technologies. In particular it is the case of mercury, arsenic, cadmium, lead, chromium and nickel. This diploma thesis focuses on the utilization of adsorption using suitable adsorption materials to reduce concentrations of nickel in drinking water. At the same time it investigates the effectiveness of these materials in the process of removing iron and manganese from water. The first part of my thesis presents an overview of these metals. I write about their occurrence, its forms, properties and significance. The second part of the work focuses on the laboratory observations of the effectiveness in removing iron, manganese and nickel from water. The description of the used sorptive materials is also included.
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Plastics and microplastics in water
Halašta, Tomáš ; Kučera, Tomáš (referee) ; Biela, Renata (advisor)
This bachelor thesis deals with the occurrence of plastics and microplastics in water and also is mainly devoted to microplastic in water treatment plants. The beginning of the work is devoted to plastics, their history, description of properties and what are the most commonly used plastics, which can be found in the form of microplastics. Next topic is devoted to the occurrence of plastics in waters, mainly seas and oceans, and especially in freshwater systems. Then the definition of microplastics and their sources and occurrence is given in the work. Furthermore, the work deals with studies on the occurrence of microplastics in drinking water and their removal at water treatment plants and the analysis of plastics microparticles. The conclusion is a summary of all available studies on microplastics in drinking water and water treatment plants.
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Specific substances in drinking water sources
Konečný, Jiří ; Kučera, Tomáš (referee) ; Biela, Renata (advisor)
In this bachelor thesis I dealt with specific substances which occures in sources of drinking water and pollutes quality of water. Especially its heavy metal, sulfur compounds, nitrogen, phosphorus and other. In this thesis I deal with possibilities about remove of these substances by using various methods, especially absorption on filter materials. These thesis is focused on using absorption on suitable materials for reduction of concentration arsenic and cadmium in drinking water. In first part I‘ve characterized subtances which occures in the water and outlined a way to remove them. Second part is focused on laboratory observation to efficiency of removing arsenic and cadmium on sorption materials.
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Aggregation reactions of chitosan in drinking water treatment
Leskovjanová, Jana ; Mega, Jaroslav (referee) ; Dolejš, Petr (advisor)
The diploma thesis deals with treatment of surface waters containing humic substances. The most often used method of surface water treatment is coagulation with subsequent separation of aggregates. In this study, only perikinetic coagulation phase was studied. It is the phase when aggregates are formed by the Brownian motion only, i.e. without mixing. Separation of the formed aggregates was made by centrifugation. Coagulation tests were made under the laboratory conditions with model humic water. Humic substances were added from a concentrate, which was taken from a natural peatbog. The influence of temperature on the coagulation process was studied, ranging from 5 to 22 °C. Chitosan (natural biopolymer) was used as coagulant. In present, it is not used in Czech water treatment practice yet. No effect of temperature was observed when chitosan was used as coagulant. Influence of temperature was also studied with the use of aluminium and ferrous sulphates, which are used in common praxis as coagulation reagents. Influence of the temperature was observed and is in agreement with previously reported data of pilot-plant experiments by other researchers. Spectroscopic methods were used to evaluate the coagulation efficiency and determine residual concentration of aluminium and ferrous coagulant. Chemical oxygen demand (COD) was determined for optimal doses. At first, coagulation tests were made under the laboratory temperature. This tests determined optimal aggregation time and optimal coagulant dose under low temperature. Afterwards, all coagulants used were compared at given temperatures.
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The heat transfer medium in heating systems
Michalíčková, Iveta ; Blasinski, Petr (referee) ; Počinková, Marcela (advisor)
Theme of diploma thesis is the heat transfer medium in heating systems. The thesis is departed to three parts. In the first part, there is a theoretical solution of heat transfer mediums. In the second part, there is a calculation solution of the project. Project solves heating of the apartment building. There are two variants of heating source and water treatment. Those variants are compared. The last part is experimental part. Theme of the experiment is quality of heating water in heating systems.
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