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Linking technical and natural infrastructure to climate change in cities
Svobodová, Lenka ; Hyánková,, Eva (referee) ; Hyánková, Eva (referee) ; Kriška-Dunajský, Michal (advisor)
The thesis is focused on linking technical and natural infrastructures in cities with respect to climate change. Various means of growing plants are presented by introducing urban farming. In the first, theoretical section, climate change is claimed to be a global threat for human kind which is more and more visible in cities. Many examples of adaptation and mitigation of climate change in cities are displayed. In the second, practical section, one existing technical measure from Brno city is examined – difference between technical and natural infrastructure is demonstrated. Finally, calculation method for environment-friendly crops growing, not only for cities, is introduced.
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Adaptation of the urban environment on climate changeclimate change
Kührová, Kateřina ; Němcová, Miroslava Pumprlová (referee) ; Pumprlová Němcová, Miroslava (referee) ; Kriška-Dunajský, Michal (advisor)
Submitted bachelor thesis deals with adaptations of the urban environment to climate change, with special focus on adaptation strategies using greenery as the element of positive influence on the urban environment. The thesis is divided into two sections. In the first section the problematic of climate change and its effects and consequences for the urban environment is introduced, using both domestic and foreign sources. Scientific findings and adaptation options are listed with some examples of applied adaptation measures. The psychological effect on the city population is also considered as also a sociological research was conducted. The second part deals with analysis of the impact of two adaptation measures, both realized in the city of Brno – the existing green roof in Otevřená zahrada at Obilní trh and the City Cell Prototype – the temporary installation realised on Malinovského náměstí. The temperature and humidity data collected in the reference period (August – October/September – October 2018) are analysed together with the data recorded by meteorological station of the Institute of Landscape Water Management at the Brno University of Technology – Faculty of Civil Engineering.
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The prediction of the risk by wastewater irrigation
Burešová, Erika ; Sládek, Roman (referee) ; Kriška-Dunajský, Michal (advisor)
The thesis deals with the issue of simulation of treated wastewater irrigation by the HYDRUS 2D software. The first part of the thesis is designed as a literary research of academic information and knowledge. It aims at introducing the issue of treated wastewater utilization for the purpose of the irrigation with an emphasis on the Czech Republic. The following is an overview of important hydropedological characteristics of soils, the theoretical basis of numerical modeling of movement and transport of solutes in soil and the use of HYDRUS 2D software. The practical part is based on theoretical knowledge and demonstrates the creating process of mathematical model in program HYDRUS 2D, simulating the transport of input pollution in the soil profile. Wastewater used for irrigation was treated using a system of mechanical pretreatment and horizontal filters planted with macrophytes situated on a CW Drazovce. This work describes the calibration and subsequent application of calibrated models for monitored pollution parameters NH4+-N, P-PO4-3 and COD.
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Research of the Multistage Constructed Treatment Wetlands Technology
Chaloupka, Ondřej ; Pumprlová Němcová, Miroslava (referee) ; Kriška-Dunajský, Michal (advisor)
The ways of purifying waste water produced by human society are nowadays a great deal. With the increasing pressure on sustainable construction, technology using principles close to natural processes are at the forefront. Treatment wetlands have been in use for almost 30 years and thanks mainly to developments abroad, they prove they are a suitable option for smaller producers of pollution. When designing a treatment wetland for municipalities with a larger amount of inhabitants, it is necessary to modify the proposal in order to eliminate all types of pollution. This thesis therefore compares three sewage treatment plants with a multistage filtration system. Comparing the achieved parameters will be beneficial for defining the rules for optimal design of these types of wastewater treatment plant.
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Monitoring and evaluation the first year of operation of the vertical flow filter in constructed wetland
Vláčil, Lukáš ; Kriška-Dunajský, Michal (referee) ; Pumprlová Němcová, Miroslava (advisor)
This Bachelor’s thesis evaluates the one-year operation of a new type of vertical filter bed in the constructed wetland in Dražovice. This evaluation will be used to compare the efficiency of treatment – ammonia nitrogen removal – in the Dražovice constructed wetland before reconstruction (the installation of the vertical filter) and after the reconstruction. The introductory part deals with the theoretical research summarizing expert information and learnings, in order to provide insight into the issue of constructed wetlands and vertical filters in particular. Individual technological installations are described and the operating principle of constructed wetland technology is explained. The practical part of the thesis describes and evaluates the treatment efficiency of the vertical filter installed in the Dražovice constructed wetland in 2016. The results evaluation focuses on two indicators: N-NH4+ and CODCr in the period between January 2017 and May 2018.
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The Study of Intensification of the Constructed Treatment Wetland for the Village of Machová
Zedník, Ondřej ; Pumprlová Němcová, Miroslava (referee) ; Kriška-Dunajský, Michal (advisor)
The village Machová (650 inhabitants) operates a combined sewage system which leads to a treatment wetland. This wastewater treatment plant faces similar problems like most of treatment wetlands from the turn of the last century - it has a low efficiency of the removal of ammonia nitrogen N-NH4 + which causes a negative impact on the watercourses and the environment. The study deals with the technical modification of the operating line which would eliminate the abovementioned problems and solves the sludge treatment in treatment plant. Population growth in the village connected with the construction of sanitary sewer will cause high concentrations of pollution in the inflow. The proposed modification uses the latest scientific knowledge and proven technologies which were created by the Institute of Landscape Water Management. These technologies will secure the low effluent concentrations of monitored parameters not only today but also in case the population of the village will grow.
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Possibilities of wastewater reuse for irrigation
Kolajová, Lucie ; Kriška-Dunajský, Michal (referee) ; Hyánková, Eva (advisor)
Bachelor thesis is based on waste water treatment system and treated waste water reuse for irrigation in the Czech Republic and in the world. Thesis describes individual types of waste water treatment and differences between vertical wetlands and biomechanical water treatment plants and different quality of effluent. It also deals with the individual ways of using this water for irrigation or infiltration. The second part is focused on practical experiment. Subject of experiment is irrigation with treated waste water from constructed wetland in Drazovice village. Experimental fields are planted with technological crops and grass. Experiment investigates final concentration of COD and ammonia and their influent on the crops and groundwater.
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The Study of Vertical Filter with Vegetation for Village Bezděčí u Trnávky
Kacetlová, Klára ; Přecechtěl, Karel (referee) ; Kriška-Dunajský, Michal (advisor)
This bachelor thesis follows up modern vertical flow constructed wetland for wastewater treatment for Bezděčí u Trnávky village in the Czech republic. This village has 250 habitants. Technology of construted wetlands is alternative method of wastewater treatment. There are a lot of problems with this technology in the Czech republic. These problems are results from wrong design or improper operation. It causes insufficient cleaning efficiency. The worst cleaning efficiency is in removing ammonia nitrogen. To right functioning of constructed wetland is necessary change the approach to design of the constructed wetland. The thesis is based on results of the right designed constructed wetland in Dražovice village and on working technology in Austria as well. All thesis is devided into two parts. The first part consists of literature research, which summarises basic knowledge related to constructed wetland of wastewater treatment. The second part includes two options of designing constructed wetland. The first one consists of two wastewater treatment elements and the second one includes three elements. The main aim of this technology is not only to eliminate the required pollution by decree law, but also to remove nitrogen and phosphorus. The wastewater sludge treatment is based on innovated reed-bed system with wetland vegetation.
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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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