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The Use of Recycled Building Materials for Wastewater Treatment
Zedník, Ondřej ; Pumprlová Němcová, Miroslava (referee) ; Kriška-Dunajský, Michal (advisor)
The constantly tightening wastewater treatment legislation require high-quality runoff from small-scale producers of pollution who are typically represented by small municipalities up to 500 inhabitants or decentralized parts of larger municipalities. Small municipalities are faced with high investment-intensity associated with the acquisition of new wastewater treatment plant. After several years of development, today natural technologies of wastewater treatment are in competition with mechanical-biological treatment plants. Natural technologies can even achieve better results than popular biological treatment plants. However, natural technology does not eliminate the main investment limit connected with the acquisition of wastewater treatment plant. If there was cheaper solution connected with using alternative filter materials (in our case recycled construction and demolition waste), small municipalities could take constructed wetland without large subsides. At the same time, the use of recycled construction and demolition wastes will lead to benefits in the field of sustainable urban development and replacement of non-renewable materials. Despite these benefits, recycled aggregates have never been considered as alternative filter materials for natural wastewater treatment plants. For that reason, the aim of diploma thesis is to assess the possibility of applying recycled aggregates for wastewater treatment which will include evaluation of real trial operation.
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Comparison of chemical oxygen demand and total organic carbon for the determination of organic carbon content in water
Tobolková, Eva ; Načeradská, Jana (advisor) ; Novotná, Kateřina (referee)
Chemical oxygen demand (COD) and total organic carbon (TOC) are determinations that are used to summarize the organic pollution of waters. However, these determinations do not provide the same information about the content of organic substances in waters. COD is an oxidation method and different substances react differently to this determination. TOC is more accurate as an indicator of organic pollution. Therefore, their ratio will be different for waters with different compositions. This work focuses on evaluating the advantages and disadvantages of determining COD and TOC and comparing their ratios in waters with different compositions. The goal of the work was also to determine whether it is appropriate to introduce coefficients for converting COD and TOC for different types of water. Based on the literature search, it was found that the determination of TOC provides more accurate information on the content of organic pollution in all types of water. The determination of COD by the dichromate method is important for wastewater, mainly due to the estimation of the proportion of degradable pollution. The COD/TOC ratio for municipal waters is relatively stable due to their similar composition, and the determination of the conversion coefficient is possible. This does not apply to industrial...
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Zhodnocení účinnosti čistírny odpadních vod v Ivančicích
Caesar, Jindřich
The aim of this diploma thesis is to monitor the selected parameters of wastewater pollution at wastewater treatment plant in Ivančice. The theoretical part contains the basic facts about water pollution and wastewater treatment, and the relevant legislation. Fur-ther there is described the wastewater treatment plant in Ivančice. The practical part consists of the monitoring of wastewater at the affluent and effluent of the plant, which was carried out monthly from November 2018 to February 2019. That was based on sampling and measurement of selected parameters such as pH, conductivity, dissolved oxygen and temperature; the other parameters, nitrate, ammonia and total nitrogen, orthophosphates, total phosphorus and chemical oxygen demand were determined in the UAKE MENDELU laboratory. The calculated average efficiency of each parameter was over 90 %. In the discussion part the results are compared with the government regulation 401/2015 Sb., in an effective vision, with the data obtained from the wastewater treatment plant Ivančice and with some other authors.
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Porovnání metod stanovení chemické spotřeby kyslíku
Halm, Jiří
The topic of the thesis is Comparison of methods for determination of chemical oxygen demand. Chemical oxygen demand is one of the basic indicators of water pollution. It indicates the degree of pollution by organic and oxidizable inorganic substances. The work is focused on comparison of methods, which are commonly used for the determination of COD in wastewater. The methods assessed are the titration method and the spectrophotometric method. The methods are compared on differently loaded samples. The aim of the comparison is to assess the repeatability of the results, the financial costs of the methods, and the labor and time demands.
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Hodnocení provozně technologických charakteristik čistírny odpadních vod Uherský Brod, se zaměřením na problematické aspekty provozu
Groman, Martin
The thesis evaluates the technological and operational characteristics of the water purification plant in Uh. Brod, specifically focusing on the problematic issue of operation. The thesis is broken into two parts, a theoretical part and a practical part. The theoretical part focuses on water legislation in the EU and the Czech Republic, particularly on the operation of water purification plants. It also provides a general description of the technological processes used in wastewater treatment. The following practical part describes the methods and the technology of sewage treatment in the U. Brod plant. It also evaluates the effectiveness of wastewater purification in Uh.Brod. This is compared with legally permissible minimum levels of effectiveness of wastewater emissions. Furthermore, the emission values in the Uh. Brod plant are compared with emission limits set by law. The results are evaluated in the years of 2014-2017.
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The Use of Recycled Building Materials for Wastewater Treatment
Zedník, Ondřej ; Pumprlová Němcová, Miroslava (referee) ; Kriška-Dunajský, Michal (advisor)
The constantly tightening wastewater treatment legislation require high-quality runoff from small-scale producers of pollution who are typically represented by small municipalities up to 500 inhabitants or decentralized parts of larger municipalities. Small municipalities are faced with high investment-intensity associated with the acquisition of new wastewater treatment plant. After several years of development, today natural technologies of wastewater treatment are in competition with mechanical-biological treatment plants. Natural technologies can even achieve better results than popular biological treatment plants. However, natural technology does not eliminate the main investment limit connected with the acquisition of wastewater treatment plant. If there was cheaper solution connected with using alternative filter materials (in our case recycled construction and demolition waste), small municipalities could take constructed wetland without large subsides. At the same time, the use of recycled construction and demolition wastes will lead to benefits in the field of sustainable urban development and replacement of non-renewable materials. Despite these benefits, recycled aggregates have never been considered as alternative filter materials for natural wastewater treatment plants. For that reason, the aim of diploma thesis is to assess the possibility of applying recycled aggregates for wastewater treatment which will include evaluation of real trial operation.
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Monitoring of water quality in the river Stropnice
Petrlíková, Kateřina ; Tesařová, Eva (advisor) ; Potužák, Jan (referee)
Five indicators of water quality, namely biochemical oxygen consumption in five days, chemical oxygen consumption by dichromate method, nitrate nitrogen, ammonium nitrogen and total phosphorus, were determined in the river Stropnice. The samples were monitored at four offtake places along the river monthly during the year 2013. Twice a year water samples were analyzed also fromthe dischargeof the wastewater treatment plants. The results show that some changes of the individual parameters can be traced during the year, such as increase of oxygen consumption and total phosphorus in the summer months. However, no significant fluctuation was indicated for the measured parameters at any of the offtake places. Based on the values of the individual parameters water in Stropnice can be ranked to quality classes II. - IV. In the long-term frame of water quality examination from the year 2008 average indicators' values and characteristic values were determined. The results revealed that neither in this case substantial changes of water quality regarding the measured indicators can be observed.
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Čištění odpadních vod na čistírně do 3000 ekvivalentních obyvatel
Houdková, Lenka
This bachelor thesis disserts about the problematic of a sewage purification. Wastewater treatement of Dolní Kounice was chosen for analyse. The aim of this thesis is analyse and evaluation data from process of a sewage treatement. This thesis describes actualy issue of sewage in Czech republic. This thesis is focused on describtion technology of wastewater treatement of Dolní Kounice. This thesis containes analyse data from process of sewage treatement and finally evaluation. At the end in this thesis there are scores of requirements from Czech authority and finally recommendations for process of sewage treatement.
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Function of the root wastewater treatment in case of two wastewater treatment stations in Třeboň Biosphere Reserve.
MUNDOKOVÁ, Mariana
The Bacherlor´s thesis monitors the concentrations of certain chemicals in waste water. The locations of this testing operation were Příbraz, a constructed wetland that has been operating for nine years and Rosec also a constructed wetland in testing operation. This project shows the physical construction and the function of constructed wetlands. It also reports on the levels of the BOD 5, COD and TSS. From our monitoring records the efficiency for BOD 5, COD and TSS has been steady over the study period for both locations. Only once for a period of four months outflow concentration of TSS was higher the due to increased inflow of constucted wetland TSS at the Roseč.
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