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Variants of sewerage of municipalities to 2000 inhabitants
Remešová, Terezie ; Ručka, Jan (referee) ; Raclavský, Jaroslav (advisor)
The main goal of this thesis is a proposal and a comparing potential options about drainage of village Bořetice. Proposed variants are building of a new sewer network and a pump station according to PRVK, building of a new sewer network and a sewage treatment plant and a building of a new sewer network with a finishing wastewater treatment in the stabilization tanks. This thesis also includes a summary of current options of drainage village up to 2000 inhabitants.
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The floating islands technology for wastewater treatment
Kohut, Rafael ; Hyánková, Eva (referee) ; Kriška-Dunajský, Michal (advisor)
Importance of proper water treatment is well described in the European Water Charter. However, considering incessant population growth and role of water as a key raw material in all industries and agriculture, we can say that its availability and quality is endangered. To improve the quality of water and water ecosystems, the strategy of renewal of wetlends is being presented as relevant. Except for natural wetlands there is also a variety of artificial ones, which are trying to simulate because of their treatment conditions. This is one of the main reasons why application of floating wetlands raises a great interest nowadays. In at least seventeen countries all around the world the surveys were conducted to define efficiency of this method for purifying of waters. Despite these efforts, the assesment of the reliable evaluations still remains a large research gap. The purpose of this thesis is to present and describe results of a month´s measurements of efficiency of usage of floating wetlands for refinig of wastewater stabilization pond of root zone wastewater treatment plant in the climatic conditions of the Czech Republic.
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The Issue of Vertical Filters with Vegetation for Municipalities up to 500 PE
Brychtová, Veronika ; Přecechtěl, Karel (referee) ; Kriška-Dunajský, Michal (advisor)
Thesis consist of two parts theoretic one focus on wastewater, wastewater treatment and practical part which focus on the most appropriate option how to treat wastewater in Pyšel village. In this location was in the past purchased a study of variant solutions. From the economical/investment/the most appropriate point of view was chosen vertical wetland. Nowadays vertical wetlands are very suitable for small municipalities under 500 equivalent inhabitants because of the low demand for electricity and the presence of operators is not necessary. This technology became unpopular in Czech Republic after few incorrectly designed vertical wetlands. These problems cause insufficient cleaning ability especially about ammonia, phosphorus or other mostly oxygen parameters. Flawless design and optimized service of vertical wetland can achieve better results than biologically – mechanical waste water treatment plant. Design for Pyšel village is based on research processed by Institute of landscape water management (Kotěnice and Dražovice). Part of the design are also sludge fields, which were build for minimalized financial expenses for Pyšel village inhabitants.
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The Issue of Vertical Filters with Vegetation for Municipalities up to 500 PE
Brychtová, Veronika ; Přecechtěl, Karel (referee) ; Kriška-Dunajský, Michal (advisor)
Thesis consist of two parts theoretic one focus on wastewater, wastewater treatment and practical part which focus on the most appropriate option how to treat wastewater in Pyšel village. In this location was in the past purchased a study of variant solutions. From the economical/investment/the most appropriate point of view was chosen vertical wetland. Nowadays vertical wetlands are very suitable for small municipalities under 500 equivalent inhabitants because of the low demand for electricity and the presence of operators is not necessary. This technology became unpopular in Czech Republic after few incorrectly designed vertical wetlands. These problems cause insufficient cleaning ability especially about ammonia, phosphorus or other mostly oxygen parameters. Flawless design and optimized service of vertical wetland can achieve better results than biologically – mechanical waste water treatment plant. Design for Pyšel village is based on research processed by Institute of landscape water management (Kotěnice and Dražovice). Part of the design are also sludge fields, which were build for minimalized financial expenses for Pyšel village inhabitants.
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Variants of sewerage of municipalities to 2000 inhabitants
Remešová, Terezie ; Ručka, Jan (referee) ; Raclavský, Jaroslav (advisor)
The main goal of this thesis is a proposal and a comparing potential options about drainage of village Bořetice. Proposed variants are building of a new sewer network and a pump station according to PRVK, building of a new sewer network and a sewage treatment plant and a building of a new sewer network with a finishing wastewater treatment in the stabilization tanks. This thesis also includes a summary of current options of drainage village up to 2000 inhabitants.
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Fyzikálně chemické vlastnosti vody stabilizačních nádrží z hlediska welfare ryb
OKROUHLÝ, Vít
This bachelor thesis deals with influence of physicochemical indicators of water on the assigned fish stock, including the balance (TN, TP, N-NH4 +, BSK5, CHSKCr and NL105) and the retention of TP and TN in biomass of fish. The work also evaluates the growth ratio and mortality of the deployed fish and it also monitors the balance between primary and secondary production. In the introductory part of the thesis are theoretically described parameters, which were measured in SN2. The main part of the presented work describes the experiment and its conditions, methodology of measurement of individual parameters and summary of data in the form of tables and graphs to achieve a clear presentation of physico-chemical properties of water, balance of nutrients in the reservoir, fish production and abundance of zooplankton organisms. The data in this section was also summarized briefly under tables and charts. In spite of the frequent unfavorable values of the measured parameters, the fish stock aquired an excellent gain of 932.72 kg and 907 kg.ha-1 but the mortality of the carp was slightly higher due to the possible predation of water predators or different demands on the environment by different age groups of carp (Cyprinus carpio). The survival of other deployed fish was within normative losses, except for the fetus of Sander lucioperca, which was not able to survive under these conditions. The cause of fish survival in often extreme conditions can be due to the fact that it migrates to places where the conditions are more favorable or because the fish is in a good condition due to natural food supply. The nutrient balance in SN2 was positive for TP, TN and N-NH4 +. The measured values at the inlet were therefore higher than the SN2 effluent values. The content of organic matter (BSK5, CHSKCr, NL105) was higher at the SN2 outlet than its inlet. The weight on organic solvents and suspended solids has increased on drainage due to the development of production processes.
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The floating islands technology for wastewater treatment
Kohut, Rafael ; Hyánková, Eva (referee) ; Kriška-Dunajský, Michal (advisor)
Importance of proper water treatment is well described in the European Water Charter. However, considering incessant population growth and role of water as a key raw material in all industries and agriculture, we can say that its availability and quality is endangered. To improve the quality of water and water ecosystems, the strategy of renewal of wetlends is being presented as relevant. Except for natural wetlands there is also a variety of artificial ones, which are trying to simulate because of their treatment conditions. This is one of the main reasons why application of floating wetlands raises a great interest nowadays. In at least seventeen countries all around the world the surveys were conducted to define efficiency of this method for purifying of waters. Despite these efforts, the assesment of the reliable evaluations still remains a large research gap. The purpose of this thesis is to present and describe results of a month´s measurements of efficiency of usage of floating wetlands for refinig of wastewater stabilization pond of root zone wastewater treatment plant in the climatic conditions of the Czech Republic.
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