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The use of greywater and rainwater for public facilities
Korytář, Ivo ; Raček, Jakub (referee) ; Raclavský, Jaroslav (advisor)
This paper analyzes the usage of grey and rain water in civic amenities. Its main goal is to assess the advantages and disadvantages of the grey and rain water and to dissect the problematic of rain water quality. In order to reach its goal, the current paper will analyze the already applied system of using grey water, specifically in the case of MOSAIC HOUSE in Prague, which was the first in the Czech Republic and second in the world to use grey water for heat purposes. In conclusion, this Bachelor’s paper presents one object of civic amenities, specifically the guesthouse U Cerneho psa in Cesky Krumlov, with the proposal of grey water purifier by ASIO s.r.o. and grey water seepage object from the same company together with a projected balance sheet.
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Energy Optimization of WWTP
Frank, Ivo ; Sousedík, Milan (referee) ; Hlavínek, Petr (advisor)
Objectives of this bachelor thesis are to offer a brief tutorial on how to proceed with the energy audit of the wasterwater treatment plant and offer energy-efficient and economical alternatives to the technologies and equipment currently used for mechanical and biological wastewater treatment processes. Chapter with practical part of the thesis deals with possible applications of retreived knowledge on to operations of WWTP Mikulov in order to optimize its energy efficiency.
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Design of the concrete sewage plant
Štramberský, Martin ; Strnad,, Jiří (referee) ; Zich, Miloš (advisor)
The subject of my bachelor's thesis is a static design of a sewage plant reservoir, dimensioning and examination of the construction part for Capacity Limit State and Applicability Limit State. Design documentation is included in the project. The aim of this thesis was to design the reservoir in such a way that there would be no cracks in the concrete. The calculations were carried out in accordance with Eurocode 2.
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Occurence of beta-blockers and calcium channel blockers in aquatic environment and their influence on fish
BERANOVÁ, Petra
The aim of this bachelor thesis was to make an overview of distribution of beta-blockers and calcium channel blockers, their occurrence in aquatic environment and their impact on fish. Analysis of data obtained from the website of the State Instiute for Drug Control, which was carried out in Excel revealed, that 53 643 kilograms of beta-blockers and 24 472 kilograms of calcium channel blockers was distributed in the Czech Republic in 2011. Metoprolol, acebutlol and atenolol reached the largem volume of distribution among aktive ingredients in the group of beta-blockers. Verapamil, amlodipin and diltiazem were TOP 3 calcium channel blockers. These drugs are generally the most sold in the world and they can be found in surface waters in the Czech Republic and worldwide at concentrations rating from tens to hundreds ng.l-1 . The reason for this is the low removal rate of beta-blockers and calcium channel blockers in wastewater treatment plants, which ranges from 11 to 76%. Toxicity tests on fish with metoprolol, propranolol, atenolol, verapamil and diltiazem have shown the effect of this pharmaceuticals on e.g., reduction of fecundity, hatchability or heart rate. Various histopatological changes on the liver and heart or malformations of early developmental stages of fis have been also reported. The lowest concentrations of the tested substances at which these effects were observed, ranged mostly from values g.l-1 to mg.l-1, i.e. these concentrations were higher than those commonly found in surface waters. However, some effects were observed also at environmentally relevant concentrations. Due to prolong-term exposure on the organisms beta-blockers and calcium channel blockers may represent a threat to aquatic ecosystems. A solution could be to improve the mechanism for removal of pharmaceuticals in the sewage treatment plants.
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IMPACT OF MUNICIPAL POLLUTION ON FISH LIVING IN A SMALL STREAM
HORA, Vojtěch
Main objective of this thesis is evaluation of the impact of extraneous substances that enter Živný stream through the WWTP Prachatice onto the stream's fish population. Brown trout (Salmo trutta m. fario) was selected as a sampling organism. Sampling was conducted in 2012 using an electrical aggregate at three locations. The sample counted a total of 36 fish. Subsequently there was conducted blood sample and tissue analysis using selected biomarkers (vitellogenin and EROD). Furthermore, an analysis of fish tissue and water samples was made to identify presence of selected extraneous substances.Concentration of vitellogenin in blood plasma of male fish in the controled location was zero, in polluted location the average concentration varied between 275 and 573 ng.ml-1. Concentration of vitellogenin in blood plasma of female fish was the lowest at a location directly downstream the WWTP (7 185 823 ng.ml-1). At other locations, the average concentration ranged between 9 250 302 - 11 614 177 ng.ml-1. The activity of liver detoxifying enzymes (EROD) was the highest at polluted locations, between 63,9 - 87,4 pmol.mg-1protein.min-1. In the controled location was the lowest activity EROD (5,4 pmol.mg-1protein.min-1). The result of identification of selected extraneous substances in fish tissues (liver) and in the water is a sum of all detected pharmaceuticals. In fish tissues was the sum of all detected pharmaceuticals in the range from 20,8 to 138,8 ng.g-1, while in water it varied between 0,07 - 3,00 ?g.l-1. The highest values were again measured in polluted areas. The results of the analyses conducted imply, that the present concentrations of extraneous substances in Živný stream downstream from Prachatice have a negative impact onto live organisms.
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Seasonal evolution of antibiotic concentrations in the wastewater of STP České Budějovice
JANOŠÍK, David
The aim of the diploma thesis was to monitor seasonal concentration changes of 7 antibiotics norfloxacin, levofloxacin, ciprofloxacin, azithromycin, erythromycin, trimethoprim and sulfamethoxazole in wastewater influent and (cleaned) water effluent in the Sewage Treatment Plant (STP) České Budějovice. Time-proportional 24 hours pooled samples of wastewater were collected every month from March 2011 to February 2012 in the influent and effluent pof the STP. The concentrations of target compounds were determined by using in line SPE/LC-MS/MS analysis. The highest average concentration in the influent was detected in case of norfloxacin (0.563 microgram/l) and ciprofloxacin (0.406 microgram/l). The highest average concentration in the effluent was detected in the case of trimethoprim (0.255 microgram/l) and erythromycin (0.117 microgram/l). Higher concentration of antibiotics was measured in the colder periods of the year. It was connected with increased use of antibiotics and with less cleaning efficiency of the STP in this season. The highest removal efficiency was determined for norfloxacin and ciprofloxacin, the lowest for erythromycin. The influence of the season on the removal efficiency of antibiotics was found esp. for azithromycin,trimethoprim and sulfamethoxazole.
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Accounting adjustments in EVA enterprise valuation
Schichman, Roman ; Maříková, Pavla (advisor) ; Menčlová, Barbora (referee)
This thesis examines especially the area of accounting adjustments for the purpose of use of EVA value concept. Adjustments are examined for financial statements prepared under IFRS and CAS. The thesis concentrates particularly on fair value revaluation of assets and liabilities, capitalization of expenses with investment character, leasing and goodwill. Objective of this thesis is to analyze the EVA value concept, update this topic with the foreign literature and to provide recommendations for performing these adjustments. This thesis concerns also about the general examination of the enterprise value, impact of expectations or division of the enterprise value on current operations value and future growth value.
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Influence of common sources of communal pollution on aquatic environments
ŠATRA, Václav
The aim of the thesis was to assess the impact of current sources of sewage treatment plant (STP) located upstream on the contamination of the aquatic environment. In 2009 contamination assessment was carried out at three selected sites located within the municipal sewage treatment plant and at three sites located above these potential sources of pollution. Brown trout (Salmo trutta m.fario L.) was the indicated species. The presence of MUSK materials , brominated flame retardants (BFRs) and organochlorinated persistent pollutants (POPs) was being detected within the selected samples of fish muscles and sediments.
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