This diploma thesis deals with monitoring phosphorus content in watercourses of Veverka catchment area. The measurements were performed on six specific profiles during eleven-month period with intervals of 14 days. The analysis of samples was carried out at DALE laboratory using her equipment, namely the mineraliser -- Digital Reactor Block 200 (DRB 200), the spectrophotometer -- DR/4000. Simultaneously, pH, conductivity, temperature and dissolved oxygen levels were monitored in the field using portable device HQd HACH company. The water samples analysis indicates that Veverka catchment area is negatively affected by the increased concentrations of phosphorus. The main sources of phosporus are the waste-water treatments plants that causes water quality deterioration in catchment area. The agricultural activity has a marginal impact on water quality in terms of phosphorus.

I would like to focus on a sewage treatment of a medium sewage treatment plant. In the general part, I deal with the ways of the sewage treatment in the Czech Republic and with the steps of the treatment. This is also the main topic of this thesis. In the general part, there is also a part dedicated to the use of the sewage sludge. In the practical part and in the conclusion, we can find the technology of the treatment in selected sewage treatment plant, the legislative requirements on the treatment and the comparison with the results of selected indicators. The values are arranged into the tables and graphs.

In my diploma thesis Evaluation of the flow Semíč and a draft measure I summarized the literature review dealing with the revitalization of watercourses and water pollution. The aim of the study was to conduct a survey of the watercourse Semíč and its water-shed. Another objective was water sampling and evaluation of selected indicators of water quality in the laboratory. Samples were taken and evaluated for the period 2013/2014 and the one calculated averages. Analyses of zinc, copper and aluminium have been performed with respect to their financial costs twice, once analysis cadmium. The results were compared with the data obtained from the 1992 and 2002/2003. The comparison of the results over time shows that some indicators marked improve-ment in contrast to certain values worsened. Results from the period 2013/2014 reflect the improving quality of surface waters. However, it is still necessary to improve the management of farmland with an emphasis on erosion, proper crop rotation and fertilizer application. In the future, it is necessary to focus on better drainage and wastewater treatment.

This thesis pursues an evaluation of sectional trial operation of wastewater treatment plants in Mostiště, where the reconstruction has been started on 1st March 2012. A core of the works consisted of a complete reconstruction and intensification for providing a production of drinking water which suit tigtening law requirements on drinking water quality throughout the whole year and would be appreciated by users of drinking water. The necessity of the reconstruction and completion of a water treatment technological line came out of insufficiency -- worsening of raw water quality, bad technical condition of the whole line and some moral obsolescence of the line and especially of problematic quality of produced water according to specific indexes. An outcome of this thesis is an evaluation of efficiency and functionality of a modernized water treatment plant which is in trial operation for now, with help of chosen indexes controled after each separation step which are statisticaly processed into graphs and verbally rated.

It is necessary to consider the increasing problem of the environment and better quality of people living. This thesis focuses on modernization of the system, which cleans the wastewater in municipality of Kout na Šumavě. These days it is taking place the second phase of building a sewerage system, that would be partly financed from European Union funds within the operation program of Environment. The thesis is split into two main parts. The first theoretical part contents the basic theory, where are described the financial funds, the basic theory of the wastewater treatment and also the problematic of multi-criteria decision making and it´s methods. Mentioned methods relate to solving the problems of decision-making situations. The second practical part performs particulary solution of the given problem. In the practical part are used all identified findings and background materials for evaluation and for selection the right decision making situation. This would be solved by application of mathematical methods. All identified results, that used mathematical methods, are evaluated and suggested to the representatives of the municipality. They referred the results to the general contractor.

This thesis deals with the issue of waste water treatments from small sources of pollution. At the beginnig, there are characterized wastewater and important indicators for measuring the concentration of pollution, then this thesis describes the different technologies and technological equipment used in the treatment of wastewater from small sources. In the practical part of the work is designed to upgrade the technological part for processing waste water for area businesses METRO NITRA. The first part describes curent conditions of selected wastewater treatment plant. Next part describes in detail the proposed technological part and evaluation samplings. Later in this chapter is described the economic value and the expected schedule of work.The aim is to design WWTP upgrade with the technical and the economic assessment.

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