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Evaluation of operational parameters of sludge pumps.
Kuzmová, Barbora ; Hodáň, Václav (referee) ; Hlavínek, Petr (advisor)
The aim of the bachelor thesis is to determine the parameters of sludge pumps. In the first part of the thesis is processed by a general search of pumps and their basic division. There are described properties of individual pumps. There are mentioned the reasons influencing parameters of the pump. This study is more closely engaged with sludge pumps and their comparison. For review, in the thesis is chart with sludge impellers. In this work are compares channel, vortex, screw and other impellers. This comparison is shown in chart of impellers. There are also described methods of measuring the parameters of the pumps, mentioned test procedures and diagrams of experiments. The practical part is described clogging test. The experiment was conducted on a channel pump. The process and result of the experiment is mentioned in thesis.
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Energy balance of urban wastewater treatment plants
Čížová, Barbora ; Bartoník, Adam (referee) ; Hluštík, Petr (advisor)
The research part of the diploma thesis is focused on an issue of energy consumption in sludge treatment at wastewater treatment plants divided by the number of population equivalent. The aim of the practical part is to set indicators and propose evaluative criteria concerning energy performance of urban wastewater treatment plants. The verification of proposed criteria and energetic analysis result from data of the wastewater treatment plant in Novy Jicin.
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The waste management of the constructed treatment wetlands
Mrvová, Michaela ; Hyánková, Eva (referee) ; Kriška-Dunajský, Michal (advisor)
The thesis is focused on the sludge management at root sewage treatment plants with focus on volum eis highest – sludge manahement. Sludge dewatering using sludge dryiing bed is still condemned designers mainly due to their lack of experience, while at the same time enforcing technologically complex solutions. Therefore, the thesis focuses on the break down balance hydrological equation sludge drying bed, which includes all parameters affecting water balance system. The result is a proposal not only design, but in particular a description of input data and the governing equations in software Reed-Bed, which is calibrated own operational results obtainde for the two sewage treatment plants (village Dražovice and Kotenčice). Reed-Bed software will perform sevetal functions: setting the ground area of sludge bed, investment costs required for the implementation of sludge bed, return on investment, the determination of moisture contene of sludge in the sludge bed and maximum lenght of the dewatering period with regard to wetland vegetation. The second largest item within sludge system creates biomass wetland plants, so work deals with possibilities biomass processing plant at the end of the growing season. Technological processing of biomass was tested on common reed, final product pellets for heating.
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Level scraping systems of settlement tanks
Rusník, Tomáš ; Hort, Filip (referee) ; Brandejs, Jan (advisor)
Main topic of this bachelor thesis is analyse of settlement tanks scraping equipements in sewage plants. Settlement tank at the wastewater treatment plant is part of the so-called bio-lines, which is used for the separation of activated sludge from waste water. Activated sludge settles in the settling zone. Part of the sludge flotates to the surface of the tank, usually in the space between the inflow cylinder and overflow edge, respectively. This sludge, biological or chemical origin, may, at the massive occurrence, outflow to the recipient and causes worse quality of the effluent. The sludge is therefore necessary to remove from surface of the settlement tank. Some of the different systems of sludge collection have been developer during last decades. The equipments and their function are descriped in my work.
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Sludge Utilisation from Pulp and Paper Plant
Zemanová, Kateřina ; Houdková, Lucie (referee) ; Boráň, Jaroslav (advisor)
The contens of diploma thesis is description of paper and pulp production and analysis of contemporary problems with disposal of sludges rising on industrial waste water treatment plant. Accent is focuses on description of waste water treatment technique, characteristics of rising sludge and the ways of his liquidation in particular plant for pulp production. Fundamental part of this project is evaluation of power and economics balance of current sludge technology in company Biocel Paskov a.s. and suggested sludge management technology. Balances are based on data gained from measurement in laboratory and on data gained from literary research.
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Raking equipment of sedimentation tank
Šebela, Michal ; Mazal, Pavel (referee) ; Brandejs, Jan (advisor)
Bachelor's thesis contains summary of systems for raking equipment of sedimentation tank. It deals with a specific design solution raking device installed in sewage treatment plant in Ostrava. The goal of this thesis is design suitable solution of raking device. Thesis also contains drawing documentation.
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Using flotation in water treatment plants
Litschmann, Patrik ; Kučera, Tomáš (referee) ; Biela, Renata (advisor)
The bachelor thesis processes the principle of dissolved air flotation (DAF), its history, modifications and parameters. It also describes efficiency in removing cyanobacteria, algae and turbidity on surface sources. Additionally, the experience with flotation is described at the first separation stage in the Czech Republic and abroad. It has turned out that pre-project preparation, model tests and pilot tests are absolutely crucial for dissolved air flotation. Finally, flotation with sedimentation is compared in terms of flocculation, coagulation, sludge and their economic impacts.
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Assessment of drugs in settlings with waste water treatment
Hájek, Radek ; Mravcová, Ludmila (referee) ; Vávrová, Milada (advisor)
This bachelor thesis is focused on asessment of pharmaceuticals in wastewater treatment plant sludge. Two macrolide antibiotics (erythromycin and clarithromycin) and three non-steroidal anti-inflammatory drugs (ibuprofen, naproxen and diclofenac) were assessed. Sample of sludge was taken in municipal wastewater treatment plant in Brno-Modřice. Analytes were obtained using pressurized solvent extraction (PSE) or ultrasonic solvent extraction (USE). Clean-up was performed by solid phase extraction (SPE). Ultra high performance liquid chromatography followed by UV-VIS diode array detection was used for quantitative determination of the analytes.
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Mathematical model of solar drying of sewage sludge
Ficza, Ildikó ; Houdková, Lucie (referee) ; Hájek, Jiří (advisor)
Solární sušení je mimo jiné energeticky nenáročná a tudíž vysoce ekologická cesta pro zpracování kalů z malých čistíren odpadních vod. Výsledkem tohoto procesu je produkt, který je velmi dobře použitelný v zemědělství jako přírodní hnojivo. V rámci této práce bude sestaven zjednodušený dynamický model sušení vrstvy kalu s jednou prostorovou souřadnicí. Tento model bude diskretizován pomocí vhodné numerické metody a bude provedena jeho implementace do výpočtového programu v prostředí MATLAB.
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Screw conveyor
Kaňa, Vojtěch ; Pokorný, Přemysl (referee) ; Jonák, Martin (advisor)
This bachelor thesis deals with proposal tilted screw conveyor in term of calculation and construction solution of tilted screw conveyor for sludge transportation in waste water treatment plant. There is a calculation of the basic parameters, proposal of gearing, proposal of bearings and strength calculation of the main parts. In the attachment we can see drawing documentation.
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