|
|
Determination of anions in water of forest springs using ion chromatography
Kouřilová, Soňa ; Komendová, Renata (referee) ; Alexa, Lukáš (advisor)
The bachelor thesis is focused on the determination of anions in water from forest springs by ion chromatography. The aim of the study was the analysis of common anions contained in spring waters that may affect the quality of drinking water. The ion chromatography method was used to separate and quantify the anions. The work involves the collection of samples from 25 forest springs in the surroundings of Brno. The sampling was carried out in spring and autumn campaigns (from 30 May to 13 June 2023 and from 26 September to 11 October 2023). The theoretical part contains information on analytical methods with application in determination of anions in waters. In the experimental part, results and discussion are presented providing important information on the chemical composition of the water in targeted springs. The results can serve as a basis for protection and monitoring of drinking water in forest environments.
|
|
|
Comparison of mechanical and biological wastewater treatment plants in terms of financial costs and environmental impact
Winkler, Ondřej ; Výskala, Miloslav (referee) ; Aigel, Petr (advisor)
The aim of this bachelor thesis is to analyse and compare the operating costs and quality of water discharged at mechanical-biological and root wastewater treatment plants. In the first part, the bachelor thesis deals with theoretical knowledge in the field of wastewater treatment. There is legislation related to WWTPs, types, quantities, and transport of wastewater, it also describes the process and technology of water treatment and, finally, the management of waste generated during treatment and its treatment. The following chapters are devoted to economic indicators of wastewater treatment plants as well as pollution indicators. This part forms the transition between the theoretical and practical part of the bachelor thesis. We will learn here what are the costs of operating the treatment plant and how these costs will be reflected in the calculation of sewerage. We will also learn here which pollution indicators are measured as part of the quality of wastewater discharged from the WWTP. In the following part, the bachelor's thesis deals with the analysis and comparison of the already mentioned costs of operation and quality of discharged water at different types of wastewater treatment plants. The analysis was performed at four root and six mechanical-biological wastewater treatment plants in a total of four districts. The conclusion of the bachelor thesis belongs to the global comparison within the Czech Republic and the evaluation of the goals of the bachelor thesis.
|
|
| |
|
|
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.
|
|
| |
|
|
Monitoring of the contents of phosphorus and nitrogen in wastewater
Herka, Milan ; Repková, Martina (referee) ; Vávrová, Milada (advisor)
This master´s thesis is focused on the occurrence of phosphorus and nitrogen in effluents and methods of their determination. In the theoretical part of the thesis describes methods for the determination of nitrogen and phosphorus in waste waters, their selection and optimization methods including mobile analytics. Experimental section is devoted to the abstraction of wastewater from selected wastewater treatment plants and their analysis methods including mobile analytics and comparing them with the presentation of their results. The conclusion is drawn evaluate the content of nitrogen and phosphorus in wastewater influent and effluent from wastewater treatment plants and compared the variation of these values during the one-month study and compared with published data.
|
|
|
The comparison of analytical method ČSN with the methods US EPA by the analysis of aqueous samples
Bělicová, Marie ; Mega, Jaroslav (referee) ; Němcová, Vladimíra (advisor)
The theses compares analytical methods according to current norms used in the Czech Republic to the methods based on the principle according to US EPA. A new device the automatic photometer Aquakem 250 makes use of the US EPA methods. Prior to its laboratory use in the Institute of Public Health in the town of Ostrava the photometer had to be validated. For the comparsion of the analytical methods ion chromatographic, isotachophoresis, spectrophotometric,titrimetric methods were used. The validation process, which was documented (in validation protocols), was time consuming and technically challenging. It was confirmed that the new Aquakem 250 analyzer provides result that are verified by methods which are in accordance with norms applicable in the Czech Republic. After a successful completion of validation and obtained accreditation the new automatic analyzer was put into regular operation in the chemically laboratory.
|
|
|
The application of mobile analytics for determination of basic parameters of waste water
Herka, Milan ; Leskovjanová, Jana (referee) ; Vávrová, Milada (advisor)
This bachelor thesis is focused on waste waters from two waste water treatment plants and utilization by mobile analytic measurement devices with photometric detection for determination of selected basic indicators of this waste water treatment plants. The theoretical part of this bachelor thesis is described selected basic indicators of waste water and their determination using mobile analytical methods. The experimental section is devoted to sampling of waste water from two wastewater treatment plants and analyzing them using a mobile analyst with spectrophotometric ending with presentation of their results. The conclusion is drawn from a comparison of the two wastewater treatment plants, compared the effectiveness of wastewater treatment and discussed the results and perform their interpretation.
|
|
|
Removal of lead and other metals from water
Šopíková, Lucie ; Vybíralová, Pavla (referee) ; Biela, Renata (advisor)
This work covers the topic of metals and semimetals in water. It is divided into three parts. First, each element is characterized by its properties and behavior in water. Incidence in the environment, utilization and effects of intake on human body are described for each element. Second, means of elimination from water are introduced. Different chemical, mechanical and biological methods are discussed. In greater detail, precipitate method, cementation, electrochemical processes, sorption and biosorption are reviewed. Third, hands-on filtration experiment of polluted water with the help of different filtration materials is included. This experiment was done in a laboratory belonging to the Institute of Municipal Water Management, Faculty of Civil Engineering, Brno University of Technology.
|
|
|
Assesment of basic characteristics of waste water from the Dermacol Company
Fribertová, Marcela ; Zlámalová Gargošová, Helena (referee) ; Vávrová, Milada (advisor)
This master thesis is focused on waste waters from cosmetics industry and basic indicators of these waters. The pollution of the environment caused by increase industrial development has a negative effect on ecosystem. Waste waters are part of the pollution. In theoretical part a basic indicators of waters (its definition and way of determination) have been described. Membrane processes for water purification have been mentioned as well – particularly the ultrafiltration. The experimental part of thesis deals with practical determination of indicators mentioned in methods described in the theoretical part. Results are discussed at the close. The discussion is focused on evaluation of efficiency of the device for waste waters adjustment, which is in use in the Dermacol company, which produces cosmetics products.
|
guest ::
