This diploma thesis deals with sound water management and is divided into theoretical and practical part. The theoretical part is divided into three main chapters. The first part focuses on rainwater, its quality characteristics and utilization. The second chapter focuses on the management of waste water, its properties, the amount of waste water and natural ways of wastewater treatment. The last chapter is devoted to the gray waters and their utilization. The practical part focuses on the study of the draft comprehensive management of sewage and rainwater in the village Pařezov district Domažlice. It focuses on wastewater treatment using constructed wetlands, using rainwater for irrigation and infiltration of the remaining water.

The "Zákolanský potok" takes part in European nature program Special Area of Conservation because of the presence of stone crayfish (Austropotamobius torentium), which is listed as threatened species. The area around brook is intensively agriculturally cultivated. Water from wastewater treatments plants is drained to the local brooks. The aim of the work was to describe diversity of macrozoobenthos on the brook called "Zákolanský potok". Further aim was to evaluate the ecological condition of the watercourse using biotic indexes. The samples of macrobenthos were taken from three profiles in five sampling periods. Profile 1 was control, profile 2 was under the wastewater treatments plants and the third profile was placed down the stream. Diversity, biomass, saprobic index, BMWP, and ASTP scores were evaluated for the community of macrozoobenthos. The saprobic index was evaluated to the beta-mezosaprobity value (2.0-2.4) in the first profile, the saprobic index on the second profile showed a relatively wide range from worse oligosaprobity to worse beta-mesosaprobity (1.2-2.4). On the third profile, the saprobic index ranged from better beta-mesosaprobity to better alpha-mesosaprobity (1.6-2.6). The BMWP and ASPT scores in all profiles refer to medium to low quality aquatic environments. The diversity of the community gained the best values on the 3rd profile, here was found with one more taxon than on the 1st profile. With increasing organic load, diversity decreased on the 2nd profile, although a more sensitive species was found here.

The Reconstruction of the Central Wastewater Treatment Plant in Prague constitutes a fundamental challenge for the Czech capital city of Prague. The existing wastewater treatment plant is obsolete and fails to comply with limits set forth by the Council Directive 91/271/EEC concerning urban waste-water treatment. Thus, it is necessary to build a new waterline and reconstruct the old one. As such a project would be financially demanding, its implementation is dependent upon a subsidy from the EU Operational Programme "Environment". There are also more variants of the reconstruction of the Central Wastewater Treatment Plant in Prague. In the thesis, the author compares the contemplated options of re-building and reconstruction of the Central Wastewater Treatment Plant in Prague. He also examines the influence of negotiations with European Commission representatives and of the amount of the subsidy upon the choice of the final option. A hypothesis of the study is that due to the subsidy policy creates pressure on the final form of the reconstruction of the Prague Central Wastewater Treatment Plant, which directly interact its economic efficiency.

The diploma thesis is focused on Storm water management in urban areas. The first task for processing thesis was to arrange meeting with MČ Brno - Bohunice Ing. Antonín Crha, who has provided necessary information about the targeted location the and the reservoir for accumulation of rainwater collected. The practical part of the thesis is to capture the rainwater drainage in the existing rainwater sewerage system using the newly built pumping station and then pumping into the existing, unused reservoir. Accumulated water in the reservoir is planned to be used for the needs of the city, gardeners and other customers. The first part of the diploma thesis describes the management of refined water in the Czech Republic, Denmark and Germany. The first part also provides description of measures and technologies for the management of rainwater. Finally, there is description of the pumping station and borehole objects and the program for calculating the rainfall from the urbanized area. In the practical part of the diploma thesis the selected variants are described, rewarded and evaluated. The diploma thesis deals with two variants, that are guided along the same route, with the difference of the construction of the drilled well in the second variant. Both variants are handled by pumping. The option of the gravity inflow was rejected because of the large countersink of rainwater sewerage.

Att utforma interaktiva TV-tjänster skiljer sig på flera sätt från att designa för webb eller för vanliga PC-tillämpningar. Faktorer som lägre bildupplösning, längre avstånd mellan användare och skärm, och inte minst användandet av fjärrkontroll istället för tangentbord och mus gör att villkoren ser annorlunda ut än för PC-tillämpningar. I detta arbete beskrivs hur en videobutik för en set-top-box för digital-TV utformas via iterativ hifi-prototypning och utvärdering. Lärdomarna är tillämpbara på andra interaktiva TV-tillämpningar. / Designing interactive TV applications is in many ways different than designing for the web for for PC applications. Lower screen resolution, longer distance between user and screen, and not least the use of a remote control as input device instead of keyboard and mouse make for different conditions than when designing PC applications. In this thesis the design of a video store for a digital TV set-top-box is being outlined. The design is made through interative hifi-prototyping and evaluation. The learnings from this work are applicable on other interactive TV-applications.

The main goal of this thesis is to expertise biological treatment of sewage water rising from production of DPG (diphenylguanidine). The theoretical part is focused on the water and means of sewage disposal. There is shortly described mechanism of physical, chemical, biological and combinated methods of sewage disposal. In practical part of this thesis, focused on expertising degradation of DPG and aniline was chosen high performance liquid chromatography (HPLC) technique, which made it possible to determined their biodegradation abilities. The next component of this thesis are sideline products determination, phenylurea especially. This thesis is focused on monitoring of biofilm´s character and the activity of Rhodococcus erythropolis bacterial culture, used in biodegradation of DPG in chemical-biological wastewater treatment plant, LZD a.s.

The work is devoted to the definition of rainwater by applicable legislation. Furthermore, it defines the term of restraint systems and infiltration of rainwater, with their brief description. Documenting the calculation of retention volumes for the three selected watersheds in combination accumulation, regulated runoff and infiltration. The work is processed simplified design documentation of accumulation of rainwater in the selected property. Thesis is complemented by photographs liquidation and use of rainwater.

In August 2014 a total die-off of fish stock occurred in Záhumenní velký, a pond with a surface area of 5.85 ha. The investigation of the fish kill revealed that the Jabkenice WWTP located above the pond area had discharged water of inappropriate quality (N-NH4+ -99.3 mg/l-1) into the pond. This event resulted in the monitoring of physical and chemical parameters of water quality, zooplankton sampling and measuring of growth dynamics of fish stock by using control reduction fishing. The survey conducted in 2015 studied three different ponds (Ohrada 0.85 ha, Záhumenní velký 5.85 ha and Vlkava 22.1 ha), located in the fertile lowland areas around Mladá Boleslav where pre-cleaned sewage water from the sewage treatment plants flows. The water samples taken both at the outflow of the waste water treatment plant and in the pond were analysed in an accredited laboratory. The following parameters were examined: BOD5, TN, CODCr, ammoniacal nitrogen, TP, nitrites, nitrates and others.

The master thesis deals with influence of system of water reservois and farming on suface water quality in catchment Košín stream in the Tabor region. There were investigated effect on suface water quality of several watercourses flowing through farmland with markedly different land cover, farming, size of catchment area and different water reservoirs. The fundamental hydrochemical parameters such as content of nutrient, inorganic and organic carbon and undissolved substances were monitored. The water samples were collected from permanent sampling points during the growing season. The investigated compounds were determined in the laboratory by titration, gravimetry and spectrophotometry. Mean, median, interquartile range were determined within the basic descriptive statistics and the data were statistically processed by nonparametric tests. Results showed particularly significant influence of the littoral vegetation and wide strips of tree vegetation as an effective filter, which prevent pollution of surface water by nutrient runoff. In some cases, the land cover was reflected positive impact of vegetation on reducing contamination of the water above the level specified by legislation, therefore vegetation is great importance in the fight pollution of waterways. From the obtained data it is obvious that influence of anthropogenic pollution on surface water is very important, but appropriate land cover can minimalize this impact.

The thesis is focused on the area of wastewater treatment. There is a solution possibility of using flotation for the removal of phosphorus precipitates formed during the tertiary treatment of wastewater. The first part is devoted to a general description of wastewater treatment, there is also described as a flotation separation technology and precipitation of phosphorus. The second part is practically oriented. It describes the experimental equipment used for the precipitation of phosphorus and subsequent removal of the precipitate flotation, during the experiment and the results obtained.