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New trends in water treatment
Zdražilová, Alena ; Kučera, Tomáš (referee) ; Biela, Renata (advisor)
This bachelor's thesis is divided into to two parts. The first part contains an overview of new trends in water treatment. The second part shows examples of use of some mentioned type of new technologies, which can be found in practice, that is on water treatment plants.
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Progressive methods for waste water treatment
Doležalová, Adéla ; Konečná, Eva (referee) ; Vondra, Marek (advisor)
This bachelor thesis contains a description of progressive separation methods for wastewater treatment. It deals with the basic principles of separation methods, including membrane processes, sonolysis, ozonization, photolysis and photocoalysis. Their strengths and weaknesses are also described. Part of the thesis is also evaluation and comparison of individual technologies with regard to their practical applicability.
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Monitoring drug removal efficiency from water by selected adsorbents
Moravčíková, Světlana ; Talašová, Lucie (referee) ; Biela, Renata (advisor)
This diploma thesis deals with the efficiency of removal of pharmaceuticals from drinking water by selected adsorption materials. The first part describes sources of pharmaceuticals in drinking water and possible ways of contaminating water by pharmaceuticals. Subsequently, the pharmaceuticals most commonly found in the environment - nonsteroidal anti-inflammatory drugs, antibiotics, psychiatric drugs and sex hormones - are described in more detail. Next, the thesis describes the processes used for removal of pharmaceuticals. These are activated carbon adsorption, membrane processes and advanced oxidation processes. The last chapter of the theoretical part of the thesis deals with water treatment plants, where the technologies for removing drugs are already in operation. In the practical part of this thesis an experiment was performed and evaluated, for a purpose of comparing the efficiency of selected sorption materials in the removal of diclofenac from water. Filtrasorb F100, Bayoxide E33 and GEH were used.
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Application of membrane technologies for the production of drinking water from the effluent from the WWTP
Minich, Marek ; Mergl, Václav (referee) ; Repková, Martina (advisor)
The Master’s Thesis deals with the application of membrane technologies in the production of drinking water from the effluent of a municipal wastewater treatment plant (WWTP). There were two types of pressure-driven membrane processes selected – ultrafiltration and reverse osmosis, to achieve water production of the required quality. For the needs of the diploma thesis, an already existing pilot-scale membrane unit of the ASIO TECH Company l.t.d. was used. There were 44 physical, chemical and microbiological parameters observed to assess the quality of the produced water and also the input water (effluent from the WWTP). None of the afore mentioned parameters exceeded the limit values, more specifically the highest limit values issued by the Decree 70/2018 Coll. However, the produced water cannot be considered as drinking water because of its low mineralisation. Before its potential application in practise, it is therefore necessary to choose an appropriate method of remineralisation as well as to follow all the other legislative requirements for the drinking water, which have already been out of the scope within the Master’s Thesis.
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Water filtration and filter materials
Moravčíková, Světlana ; Talašová, Lucie (referee) ; Biela, Renata (advisor)
This bachelor thesis deals with water filtration. Primarily it describes slow sand filtration and rapid sand filtration. For these types of filtration, the filtration mechanisms, filtration cycles, filtration regeneration and filter layout are described in more detail. In case of the rapid filters, the most commonly used types of drainage systems are summarized. Further there is a brief introduction of diatomite filters and membrane processes used in water industry. The next chapter contains most commonly used filter materials along with their basic properties. Practical part of the thesis focuses on assessment of efficiency of selected filter materials in the removal of pollution.
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Use of membrane processes in water treatment
Spratková, Aneta ; Kučera, Tomáš (referee) ; Biela, Renata (advisor)
This bachelor thesis contains a description of the basic properties of membrane technologies. It deals with the membrane process used in the water treatment for drinking water, especially pressure driven and electrically driven membrane processes. Also included are specific examples of water treatment plants where these technologies are used. The examples are from the Czech Republic as well as worldwide.
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Zero liquid discharge systems
Štylárková, Petra ; Máša, Vítězslav (referee) ; Touš, Michal (advisor)
The bachelor thesis contains a description of zero liquid discharge systems. It describes the process, which has three main parts, it is pretreatment, preconcentration and evaporation. In each parts there is a basic description of the principle of the metod, their use etc.
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Use of recycling membrane technology for industrial waters
Vykydalová, Adéla ; Mergl, Václav (referee) ; Repková, Martina (advisor)
The bachelor thesis deals with the recycling technology of industrial wastewater – more precisely, the laundry industry. The semi-operational pilot unit of ASIO TECH was used for testing this technology. The unit includes membrane processes – ultrafiltration, reverse osmosis and flotation process. There were 8 physico-chemical parameters selected for assesing the quality of wastewater and treated water. The tested semi-operational unit is suitable for cleaning laundry wastewater. The purified water can be used in the next washing process or for the water source for the steam generator.
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Water Treatment Efficiency Using Membrane Filtration
Zelinová, Kristína ; Kolesíková, Lucie (referee) ; Kučera, Tomáš (advisor)
In the first part of this thesis, current requirements for drinking water according to the legislation valid in the territory of Czech Republic and Slovak Republic are summarized. Also the changes that will come with implementation of the directive 2020/2184 of the European parliament are mentioned. Following those future changes, the importance of new technologies for water treatment comes to light. Among those technologies belong membrane processes. The rest of the thesis is dedicated to them. At first, current knowledge of their operation principles and categories, to which they can be divided into are reviewed. Then, the processes related to their maintenance are approached. Mentioned are few specific water treatment plants in Czechia and Slovakia, where membrane processes were already applied. The scientific part of this thesis consists of series of tests, executed on an ultrafiltration unit, in laboratory conditions. Including optimalization of the filtration process, as well as observation of the pollutants removal efficiency from surface water. Towards the end of the thesis, recorded values are evaluated.
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Application of membrane technologies for the production of drinking water from the effluent from the WWTP
Minich, Marek ; Mergl, Václav (referee) ; Repková, Martina (advisor)
The Master’s Thesis deals with the application of membrane technologies in the production of drinking water from the effluent of a municipal wastewater treatment plant (WWTP). There were two types of pressure-driven membrane processes selected – ultrafiltration and reverse osmosis, to achieve water production of the required quality. For the needs of the diploma thesis, an already existing pilot-scale membrane unit of the ASIO TECH Company l.t.d. was used. There were 44 physical, chemical and microbiological parameters observed to assess the quality of the produced water and also the input water (effluent from the WWTP). None of the afore mentioned parameters exceeded the limit values, more specifically the highest limit values issued by the Decree 70/2018 Coll. However, the produced water cannot be considered as drinking water because of its low mineralisation. Before its potential application in practise, it is therefore necessary to choose an appropriate method of remineralisation as well as to follow all the other legislative requirements for the drinking water, which have already been out of the scope within the Master’s Thesis.
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