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Optimization of drinking water treatment with double-stage separation of suspension
Pařík, Radim ; Pivokonský, Martin (advisor) ; Vašatová, Petra (referee)
This diploma thesis is aimed at the evaluation of the efficiency of surface water treatment technology in water treatment plant U svaté Trojice (Kutná Hora, Vrchlice reservoir). The plant performs destabilisation of impurities by coagulant aluminium sulphate (Al2(SO4)3 . 18 H2O) followed by aggregation induced by mixing with perforated baffles. Suspension is removed by double-stage separation process by means of sedimentation and filtration. When increased concentrations of manganese occur in raw water, manganese is removed by means of oxidation by potassium permanganate. Firstly, the quality of raw water was analysed. Then, the reaction conditions for the effective destabilisation (pH, dose of coagulant) were set using the jar tests. Moreover, sedimentation analysis was used to evaluate the properties of formed suspension and the length of filter cycles was assessed. Measurements were conducted between September 2012 and February 2013. Average value of raw water pH was 7.3, alkalinity was 1.64 mmol/l. DOC concentrations during September and October 2012 were equal to 6.7 mg/l and during November 2012 - February 2013 were 7.6 mg/l. Very low concentrations of aluminium (< 0.02 mg/l) were ascertained throughout the whole period investigated. Results of the jar tests showed that the optimum pH for...
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Pharmaceuticals in drinking water sources and possibility of their removal
Lukášová, Daniela ; Talašová, Lucie (referee) ; Biela, Renata (advisor)
Bachelor thesis deals with drugs in drinking water sources, and possibility of their removal. In the first part of the bachelor thesis describes the sources of pharmaceuticals in surface waters, which can be a source for drinking water. Below are described the concentration of drugs in the water and then the reader is familiar with the most frequently occurring drugs in the waters and their consumption. The second part of the bachelor thesis is devoted to Czech and foreign projects that deal with drugs in the drinking water. The third part describes the options for the removal of water by using various medicines water processes. At the conclusion of the work of the design laboratory experiment is described for removing the drug from the water.
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Options removal of micropollutants with water treatment processes
Zdražilová, Alena ; Bogáňová, Ida (referee) ; Biela, Renata (advisor)
This diploma thesis is engaged in problems of micropollutants removal by water treatment process. The first part aims to define single micropollutants, possibilities of their removal in laboratory and micropollutants removal on water treatment plant. In the second part, there is data evaluation of water analyses on factual water treatment plant. Also there is description and evaluation of experiment, which aims to pesticide removal from river by using filtration across granulated active carbon.
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Comparison of various modifications of coagulating tests
Vymazalová, Kamila ; Dolejš, Petr (referee) ; Mega, Jaroslav (advisor)
In the theoretical part of diploma thesis is elaboreted literary search relating to problems with using of various modifications of coagulation tests. The experimental part of diploma thesis is focused on comparison of three types of coagulation tests during treatment of model water with increased content of humic matter. Concretly was compared classic jar test, modified jar test and centrifugation test. As a coagulant was used ferric sulphate. The efficiency of treatment was tested under various conditions (temperature, time of fast mixing and intensity of slow mixing). Information capability of results was evalueted on the basis of absorbance by 254 nm and 387 nm, residual concentration of iron and dichromate value. Obtained results were numerically processed and they are presented in the form of tables and graphs.
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Drinking water treatment plant Koryčany - used technology and their changes from the actuation to nowadays
Konečná, Veronika ; Mergl, Václav (referee) ; Mega, Jaroslav (advisor)
Bachelor's thesis describes the problems of drinking water treatment with regard to specific technology used at Koryčany drinking water treatment plant which covers about 13 per cent of drinking water production in Hodonín district and supplies about 20 thousand people. Technology used at Koryčany drinking water treatment plant and their changes over the years of its existence (from 1959 when the original project was developed until nowadays) were depicted using archives and other available sources. The drinking water treatment plant was designed originally as four-stage (partial decarbonization, clarification, filtration, dechlorination). Decarbonization was left out before completion and dechlorination was skipped during reconstruction in 1971. Since then there were two more reconstructions (in 1991-1993 and 1998-1999) but the technology remained two-stage (clarification, filtration) so far.
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