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Solutions and variability of vertical filters
Roupec, Ladislav ; Hyánková, Eva (referee) ; Kriška-Dunajský, Michal (advisor)
The bachelor thesis deals with innovative technical solution of vertical trickle filter systems, which are categorized into the category of natural ways thow to clean water. The actual vertical filters for root cleaners are currently experiencing a boom thanks to the MPO project with the working title Biostream, within which are vertical root systems tested on root cleaner in the village of Kotenčice (involved in pilot conditions). The results show an increased removal of ammonia nitrogen and high efficiency in the elimination of organic pollution BSK5 and CHSKCr. However, the practice may in the future require even higher efficiency that can be solved by small technical innovations and modifications. In connection with the forced aeration of vertical filters is elaborated the methodological part of the thesis, the final result of the work is several regression equations using which it is possible to determine the input of oxygen into the system at a given input parameters (filter size, water flow, air flow, etc.). The results are very useful for a scientific branch because there is not so much available literature for this topic.
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Study of variants of sewerage of the recreational center Vřesovice
Krulová, Martina ; Frajt, Tomáš (referee) ; Hluštík, Petr (advisor)
The diploma thesis deals with the possibilities of sewerage and wastewater disposal in the recreational centre near Vřesovice. The purpose of the diploma thesis is the elaboration of variant solutions of sewerage, including the proposal of possibilities of wastewater treatment, economic evaluation of variants, their subsequent comparison and recommendation of the most suitable variant. The diploma thesis deals with the design of variants of wastewater treatment with subsequent discharge into surface waters. Finally, the advantages and disadvantages of the individual variants of sewerage are summarized with a comparison of costs and subsequent recommendation of the variant.
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Cleaning efficiency of vertical root filters
Opletal, Jan ; Hyánková, Eva (referee) ; Kriška-Dunajský, Michal (advisor)
The aim of this thesis was a survey about efectivity of vertical flow constructed wetlands. I find out, that vertical inttermitently flooded constructed wetland proved to be the most effecicient in pollution removal, based on data analysis form constructed wetland treatment plant in Kotenčice. The only disadvantage was weak denitrification process. Vertical filter was compared with series of horizontal and vertical continuosly flowed constructed wetland. Combination of horizontal and vertical filter was efficient enough to treat waste water, but it cannot be compared with vertical intermittently floded filter. Series of horozontal and vertical fully flooded constructed wetland had a low treatment efficiency.
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Comprehensive water management in a family house without connection to the wastewater disposal system
Plhák, Jiří ; Kriška-Dunajský, Michal (referee) ; Hyánková, Eva (advisor)
Czech Republic is called roof of the Europe, several rivers rise here and many of them flow away and continue to other countries. That's why I find, that’s extremely important to manage out water sources properly and carefully, because for example the weather has a huge impact on our limited sources and can affect them especially in a dry periods. These issues can be improved by finding a use for used water, good storm water management as well as using greywater. In my diploma thesis, I'll be mainly focused on an overall water management in an ordinary family house. It has two parts as theoretical part and practical part. The theoretical part is then split into another three parts. The first part covers a storm water management, the second is about waste water management. The third explains greywater management. In practical part of my diploma thesis, there's my study of not disposing rain water into a drain with other waste water, but making both waters useful. In this my particular subject in village called Plesnice, is projected a waste water treatment plant. Treated water will be accumulate together with rain water. Accumulated water will be used for irrigation. For a waste water treatment is projected a constructed wetland with vertical flow (down flow reed beds) and facility for sludge management. This is example of extensive technology. Irrigation system consists of storage tank with mechanical pre-treatment and pump valve shaft, sprinklers for lawns, drip irrigation decorative surfaces and everything is controlled by a control unit. Thanks to irrigation and rainwater remains in effect, which is important for local microclimate and save drinking water. This study is an example of that in water management is not necessarily a need for global action, but you can start with individuals and individual houses, which in total could have a significant effect on water retention in the landscape and to slow down and reduce the peak flow in rivers.
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All-embracing water management in a residential object in a Pařezov village
Királ, Martin ; Hubačíková,, Věra (referee) ; Hyánková, Eva (advisor)
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.
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Study of Constructed Treatment Wetland Reconstruction for Dražovice Village
Roupec, Ladislav ; Pumprlová Němcová, Miroslava (referee) ; Kriška-Dunajský, Michal (advisor)
The constructed wetlands, which have been being created in the Czech Republic since early 90s, are designed so they do not allow successful removal of ammonia nitrogen. Almost all of these 300 registered constructed wetlands suffer from the colmatage which leads to the lowest effectiveness of treatment in nearly all parameters. The main effort of the Institute of landscape water management is to get rid of bad reputation and to clarify the reason that leads to unsatisfactory conditions of constructed wetlands. The diploma thesis focuses on the selected constructed wetland in Dražovice (850 EO), which removes ammonia nitrogen with the effect just below the limit values in the long term. The pressure of the Morava river basin and Department of environment (Building Authority in Bučovice) has led to the necessity of taking measures leading to the increase of treatment efficiency especially ammonia nitrogen. The diploma thesis includes both, actual project documentation concentrating on the adjustment of watercourse to nitrify ammonia nitrogen, and effective choice of suitable filtration material supported by testing method in situ. The practical part of the thesis deals with the implementation of the technical solution according to the project documentation. The adjustment of the constructed wetland is now nearly before completion. Last adjustments will be taking place during the spring 2017, the final inspection as well as the evaluation of the reconstruction will take place at the end of this year.
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Evaluation of the efficiency of root treatment plants via ecotoxicity tests
Konečná, Kateřina ; Procházková, Petra (referee) ; Zlámalová Gargošová, Helena (advisor)
This bachelor thesis focuses on the evaluation of the efficiency of root treatment plants using appropriately selected ecotoxicity tests. For these purposes, ecotoxicological tests in an aquatic arrangement were used, specifically with the planktonic organism Thamnocephalus platyurus and the plant Lemna minor. The evaluation was performed at a municipal root treatment plant, which treats water for 955 equivalent inhabitants. The results of tests with T. platyurus confirmed that the root treatment plant sufficiently relieves acute toxicity of water. LC50 values were determined for two samples, 213.71 ml / l for the inflow and 388.20 ml / l for the settling tank. At the outflow, these values could no longer be determined due to the low ecotoxicological effect of the water thus treated. For tests with L. minor, IC50 values were also calculated for the first two samples. For Sample No. 1, the IC50 value was calculated to be 311.25 ml / l, for Sample No. 2 to 963.35 ml / l. However, on the basis of tests of direct toxicity of waters with L. minor, it is possible to confirm even in the case of this organism, a good cleansing effect of this root treatment plant.
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Study of the water management in a family house with an application of natural wastewater treatment
Kiszová, Radka ; Kriška-Dunajský, Michal (referee) ; Hyánková, Eva (advisor)
Bachelor thesis focuses on water management in the family house using natural treatment of waste water. Text partially deals with research in the area of treatment and reusing of rain and waste water in the case of a family house. Thesis concentrates on sources of waste water, their division and possibilities of reuse. When talking about waste water, main aim is to explain root waste water treatment. Second half of the text presents complex solution of water management in one particular family house. The actual amount of waste water is calculated for number of five equivalent residents, suggestion of its treatment, accumulation and enumeration of presumed amount of rain water captured. Shared storage is designed for both waste water treatment and rain water. This storage is subsequently used for flushing, washing and garden irrigation.
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