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Fluorimetric Determination of Scandium
Holubová, Zuzana ; Komendová, Renata (referee) ; Sommer, Lumír (advisor)
The submitted thesis deals within the sensitive fluorimetric determination of scandium with a new reagent 8-Hydroxyquinoline-5-sulphonic acid. All important factors such as time, pH, reagent concentration, buffers, surfactants and selected interferents have been studied with respect to the selectivity, sensitivity, precision and detection limit on the determination by using classic fluorescence spectra and their first derivation. This reagent was also used for the determination of scandium in real waters. The new reagent was shortly compared to morin and lumogallion when used for scandium.
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Industrial wastewater in Czech republic
Sikora, Petr ; Konečná, Eva (referee) ; Vondra, Marek (advisor)
The aim of this bachelor thesis is to provide a comprehensive insight into various aspects of industrial wastewater production in the Czech Republic. In addition to studying industrial wastewater in general, it also focuses specifically on winery wastewater. Wine production represents an alternative to another drink very popular among many Czechs – beer. To better understand this topic, the thesis combines a summary of theoretical knowledge with up-to-date statistics regarding production and emissions of industrial wastewater using data provided mainly by Ministry of the Environment of the Czech Republic, Czech Statistical Office, and Pollutant Release and Transfer Register. The results can be used for monitoring the development of quality and quantity of wastewater emissions during recent decades, as well as responses to various influencing events and factors. An overview of important legislation documents regarding this topic is included as well, followed by a brief selection of emission standards.
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Water quality analysis using colorimetry
Kovaldová, Eliška ; Zumberg, Inna (referee) ; Čmiel, Vratislav (advisor)
This bachelor's thesis deals with the analysis of water quality using colorimetry. Part of the work is an introduction to the physical and chemical parameters of water, as well as optical methods, which include photometry, spectrophotometry and colorimetry, and an introduction to regression analysis. These methods and analysis are followed by a practical part by measuring pH, nitrate and water hardness using a spectrophotometer and an AS7262 visible light sensor with a SparkFun development board. At the end of the work there is a comparison of absorption spectra, calibration curves and linear regression parameters of both methods.
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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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Industrial wastewater in Czech republic
Sikora, Petr ; Konečná, Eva (referee) ; Vondra, Marek (advisor)
The aim of this bachelor thesis is to provide a comprehensive insight into various aspects of industrial wastewater production in the Czech Republic. In addition to studying industrial wastewater in general, it also focuses specifically on winery wastewater. Wine production represents an alternative to another drink very popular among many Czechs – beer. To better understand this topic, the thesis combines a summary of theoretical knowledge with up-to-date statistics regarding production and emissions of industrial wastewater using data provided mainly by Ministry of the Environment of the Czech Republic, Czech Statistical Office, and Pollutant Release and Transfer Register. The results can be used for monitoring the development of quality and quantity of wastewater emissions during recent decades, as well as responses to various influencing events and factors. An overview of important legislation documents regarding this topic is included as well, followed by a brief selection of emission standards.
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| |
|
|
Fluorimetric Determination of Scandium
Holubová, Zuzana ; Komendová, Renata (referee) ; Sommer, Lumír (advisor)
The submitted thesis deals within the sensitive fluorimetric determination of scandium with a new reagent 8-Hydroxyquinoline-5-sulphonic acid. All important factors such as time, pH, reagent concentration, buffers, surfactants and selected interferents have been studied with respect to the selectivity, sensitivity, precision and detection limit on the determination by using classic fluorescence spectra and their first derivation. This reagent was also used for the determination of scandium in real waters. The new reagent was shortly compared to morin and lumogallion when used for scandium.
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