National Repository of Grey Literature 384 records found  1 - 10nextend  jump to record: Search took 0.02 seconds. 
Water quality assessment during flood events
Tomíček, Martin ; Uhmannová,, Hana (referee) ; Julínek, Tomáš (advisor)
This bachelor‘s thesis is dealing with the changes in quality of surface water modelling. Case study is done on selected short reach of the Dyje River. The subjective of the work is comparison of application and findings in programs HEC-RAS 4.0 and Info Works ICM 2.5.
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.
Drinking water treatment from aquiferous quaternary sediments in alluvial plain of Morava river
Píšťková, Jana ; Dolejš, Petr (referee) ; Mega, Jaroslav (advisor)
This work deals with problems of water purification from aquiferous quaternary sediments in alluvial plain of Morava river in the area of district Hodonín. Prime concern is oriented on drinking water tretment plants in Bzenec-Přívoz and Moravská Nová Ves. In the thesis is presented information on water captation area of given treatment plants, raw water quality and on methods of water treatment.
Evaluation of the impact of technical and technological adjustments to the water treatment plant on the quality of treated water
Jedličková, Ivana ; Látal,, Milan (referee) ; Kučera, Tomáš (advisor)
The subject of this bachelor thesis is the evaluation of sequential technical and technological changes of water collection and modification at a specific water treatment facility – the water treatment facility in Ivančice. The first part of the thesis explains the basic terminology such as technological processes of the water treatment plant, types of water treatment facilities, the range of different types of water based on its quality and technologies that can be found at the water treatment plant in Ivančice. The next two chapters describe the water treatment process before and after intensification. The primary focus is on raw water collection, the quality of both raw and treated water, and the water treatment technology. The last part of the paper offers multiple comparisons of the original and renovated facility and recommendations for improving the operations of the renovated water treatment facility. The final evaluation was carried out based on the information collected mainly by visiting the facility in person, and other sources.
Design of Water Supply Facilities with the Support of Simulation Software
Pešout, Jakub ; Tauš, Miloslav (referee) ; Kučera, Tomáš (advisor)
The subject of the thesis is the design of water supply facilities with the support of a simulation software. The document is a summary of representative software tools that are used to design water supply sites directly or serve as supportive programs. A short summary of the origin, primary focus, availability and market price of each tool is listed in the survey. Furthermore the individual programs are divided into four groups. The section conveys the software's ability to deal with any of the following issues: - Water quality - Hydraulic analysis and simulation of hydraulic working - Design of water network - Creation of simulation models Subsequently, three chosen programs are subjected to exemplary tests, demonstrating some of the capabilities. The first program is Watpro, on which a design of a water treatment plant is drafted and a subsequent search for the sufficient dose of chemical additives is executed. The second program Epanet 2.0 calculates a model test of a water leak from a pipeline. The result is then compared with the outcome of equation calculation. The last program is Watdis, with which the same example of pipeline leakage is calculated and subsequently compared to the Epanet 2.0 result. The work's aim is to provide an overview of the seventeen selected programs and supply the information to potential users from the ranks of designers and students.
Modeling of water quality in the water supply network
Dukát, Petr ; Rajnochová, Markéta (referee) ; Ručka, Jan (advisor)
This thesis looks at water quality modelling in the water network, focusing on water age. The initial part of the work identifies the factors that lead to an increase in water age in water supply networks. The theoretical part of the work presents the mathematical relationships and logistical steps that software tools apply to simulate water quality indicators in a water supply network. In the practical part of the work, a hydraulic model of a water distribution system with a total length of 302,1 km was constructed. Measurement campaign was carried out to calibrate and verify created hydraulic model. Using this hydraulic model, water age for existing and possible scenarios was simulated. The results of the work have revealed parts of the water supply network containing high water age and are intended to encourage the progressive water distribution systems management philosophy.
Water Quality Monitoring in the Selected Water Supply System
Janišová, Marie ; Biela, Renata (referee) ; Kučera, Tomáš (advisor)
The aim of the bachelor thesis is to assess the quality of the water in the water supply system and the influence of the distribution system on the quality of the transported water. The first part of thesis defines the theoretical basis on which it is based on practical part. The next part contains information about the area, the distribution systém and water analyzes. This is followed by its own series of water analyzes and the analysis of the resulting values of water quality indicators. The last part of the thesis evaluates the influence of the network on the water properties and has been designed measures to eliminate the adverse effects of the water supply.
Technical and technological audit of the water treatment plant
Jedličková, Tereza ; Svoboda, Pavel (referee) ; Kučera, Tomáš (advisor)
The aim of the submitted diploma thesis is the implementation and evaluation of the technical and technological audit of water management systems of water treatment plants – concretely Plzeň Water Treatment Plants. Part of its audit is a description of potable water production, including the evaluation of the TEA Water treatment plant, evaluation of quality assurance of raw and produced drinking water, analysis of costs and pricing costing, personnel evaluation, care of the plant and draft measures for better working of the whole system. The work also focuses on the characteristics, history and the past reconstruction and more detailed description of the individual cleaning stages of the selected water treatment plant in Pilsen. The audit itself was preceded by the study of current legislation, namely the Law No. 274/2001 Coll. and Decree No. 428/2001 Coll. The diploma thesis also describes performing laboratory analyzes in an accredited laboratory of Plzeň Water Treatment Plants.
Kvalita vody mokřadu Habřina u Rajhradic
Kejdová, Tereza
This diploma thesis deals with the physicochemical parameters of water quali-ty in the Habřina wetland near Rajhradice from the years 2022 and 2023. The litera-ture review includes definitions of basic concepts such as biotope, biocentre, wetland, and in general, it deals with water in the landscape. It also includes a basic characteri-zation and description of individual physicochemical indicators of water quality. The experimental part focuses on the direct determination and evaluation of 18 water quality parameters. The values were determined from five water samples taken during the period of 2022–2023 in the morning, and subsequent analysis was carried out in the chemical laboratory of the Department of Zoology, Fisheries, Hydrobiology a Beekeeping at Mendel University in Brno. The resulting values were compared with similar locations in the Czech Republic, the Habřina shows a similar level of pollution to ponds with a similar altitude. The studied parameters also indicate the suitability of the wetland Habřina for fish breeding and swimming. According to the concentration of chlorophyll-a during the swimming season, the wetland is suitable for swimming, but the water quality has slightly deteriorated qualities.
Změny kvality vody v toku vlivem přítoku odpadů z koňské farmy
Khainová, Barbora
The bachelor thesis focuses on monitoring changes in the quality of the Všeminka stream due to the impact of waste inflow from the Všemina Horse Ranch. A total of six sampling sites were identified and located along the length of the stream so that the first location was above the ranch and the last was below the Všemina reservoir. Sampling was conducted four times over a thirteen-month period during the growing season. During the sampling events, pH, dissolved oxygen concentration, conductivity, water temperature, and, for the reservoir, water transparency was determined on site. The samples were immediately taken for evaluation to the laboratory of the Department of Fisheries and Hydrobiology at Mendel University in Brno. Physico-chemical parameters such as total nitrogen, ammonia nitrogen, nitrite nitrogen, nitrate nitrogen, total phosphorus, orthophosphates, total iron, chemical oxygen demand by dichromate, biochemical oxygen demand-five-day, acid neutralization capacity, calcium and chloride were selected for subsequent analysis. The objective was to determine if the ranch has an effect on water quality in the stream or the Všemina Reservoir. The resulting values from the laboratory analysis were evaluated according to the standard CSN 75 7221 used to classify the quality of surface waters as well as according to Government Regulation 401/2015, whether the quality of the water meets the requirements for general water use, for salmon and carp waters. Furthermore, it was compared with similar research works on the given topic of the influence of horse breeding on water quality.

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