National Repository of Grey Literature 41 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Removal of selected pharmaceuticals from the treated wastewater by oxidation processes
Radetzká, Hana ; Macsek, Tomáš (referee) ; Hlavínek, Petr (advisor)
The aim of the work is research and summarize the currently available information about micropollutants with a focus on drugs and pesticides. The first part deals with the description, occurrence of micropollutants and their effects on organisms. The second part deals with the possibility of removing selected drugs from wastewater and the application of such methods in practice, and evaluates the effectiveness and economic aspects of O3, O3 + H2O2, O3 + UV and O3 + H2O2 + UV.
Harvesting of materials from wastewater and sludge
Boubínová, Marie ; Chorazy, Tomáš (referee) ; Hlavínek, Petr (advisor)
This bachelor thesis is focused on the issue of recycling raw materials from wastewater and sewage sludge with emphasis on phosphorus. The first part of the thesis deals with the problems associated with resources of phosphorus, the use of the legislative and recycling of phosphorus. Then, physico-chemical and biological methods of phosphorus recycling from wastewater and products of their further processing at WWTPs are discussed. Phosphorus recycling is also described in terms of the circular economy, which is explained at the end of the first part of this thesis. The second part of this thesis is a technical-economic research for a specific WWTP over 50 thousand. PE in the Czech Republic. The available technologies for recycling phosphorus from wastewater, sewage sludge and sewage sludge ash are described alsonhere. Then, the technologies are compared and evaluated.
Removal of selected xenobiotics at municipal WWTP´s
Žižlavská, Adéla ; Rusník,, Igor (referee) ; Bodík,, Igor (referee) ; Hlavínek, Petr (advisor)
The development of the chemical and pharmaceutical industry and the massive use of synthetic substances in various industries has become indispensable for our society. Unfortunately, this progress has brought a whole new kind of pollution. It is a group of substances which imagine for living organisms’ greater risk than 'normal' organic pollution. Because they have extraneous origin compared with naturally occurring compounds, they are called "Xenobiotics." It is a group comprising a large number of different substances, with dissimilar physical, chemical and biological properties such as pharmaceuticals, pesticides, detergents, paints, varnishes, plastic packaging, food additives, cosmetic products, drugs, and many others. Although these substances began to enter the water cycle as early as 30 years of the 20th century, their concentration often moves to the limit of the detection limit, so their presence in the water began to be examined in more detail in the 1980s, following the development of analytical technologies chemical composition of water. The main danger of these substances is that doesn’t primarily effect on water quality, but directly affect on the organisms by confusing of the endocrine system or by directly damaging RNA or DNA, causing mutagenic changes, cancer-causing proliferation, birth defects, metabolic disorders, gender changes, the degeneration of reproductive capacity of entire populations or the disappearance of self-preservation instinct. The source of xenobiotics in the water cycle is predominantly wastewater, which generated through the wastewater treatment, which not designed to eliminate this type of pollution. he dissertation thesis deals with the issue of xenobiotics in wastewater and is divided into the theoretical and experimental part. The theoretical part summarizes the xenobiotics current state of knowledge in wastewater from their history, origin, classification, possibilities of elimination to impacts on the environ
Reuse of wastewater in multifunctional buldings
Skřička, Jakub ; Úterský, Michal (referee) ; Hlavínek, Petr (advisor)
This diploma thesis presents reader with current knowledge in the field of gray wastewater reuse. The theoretical part describes the current state of water in the world, thus characterizes wastewater and describes its treatment. Further, this section describes the possibility of obtaining thermal energy from wastewater. At the end of the theoretical part, the reader is presented with some existing buildings in the Czech Republic that use the wastewater re-use technology system. In the following practical part, all the knowledge from the theoretical part are applied for a concrete project of construction of a graywater re-use technology system in the area of Vlněna in Brno city.
Technologies of reuse of wastewater in place of need
Podhrázský, Martin ; Ševčík, Jan (referee) ; Hlavínek, Petr (advisor)
Final thesis is focusing on possibilities hidden in the potential of wastewaters in sewers. The goal of this thesis is to present technologies and experiences with water reclamation and with heat recovery systems using wastewaters as a source of heat energy. The theoretical part is divided in two main topics. The first topic is focused on bringing important knowledge and experiences with designing and operating decentralized sewer mining systems, which are, due to less favourable environmental conditions, largely applicated and developed in countries such as Australia, California, etc. The second topic is focusing on heat recovery from sewage water and possibilities of heating and cooling buildings. A possibility of using heat energy from sewage for heating and cooling a swimming pool building located in Brno, Czech Republic was assessed in the last part of this thesis. As a source of wastewater was considered a sewer main located near the pool building. Payback periods and economical effectivity of investing into wastewater heat recovery system was compared with centralized heat supply system, which is a very common source of heat energy in Czech Republic.
Sewer mining
Šebek, Josef ; Macsek, Tomáš (referee) ; Hlavínek, Petr (advisor)
This bachelor thesis presents the topic of waste water reuse straight from the sewer system (sewer mining). It contains energy recovery (heat recovery in particular) from sewer system as well as wastewater treatment and reuse in demanded locations, in compliance with the policies of circular economy. The first part contains research of wastewater topic. Individual components of municipal wastewater, treatment and reuse options are characterized in this part of thesis followed by more detailed description of methods and technologies for heat recuperation from wastewater; and available technologies for sewer mining options at the end of the first part. The second part contains a technical study about wastewater heat recovery on a specific location.
Evaluation of centralized and decentralized sanitation
Novotný, Michal ; Raček, Jakub (referee) ; Hlavínek, Petr (advisor)
This bachelor thesis deals with the subject of comparison of centralized and decentralized wastewater treatment system for an urban area of 1000 inhabitant equivalent. Theoretical part of thesis is made by a research study and is focused on the options of centralized and decentralized wastewater draining and treatment. In the second part of the thesis a study of comparison between centralized and decentralized wastewater disposal is elaborated for village Boleradice considering investment and operating costs.
Storm water management in urban areas.
Vaculík, Tomáš ; Tauš,, Miroslav (referee) ; Hlavínek, Petr (advisor)
The diploma thesis is focused on Storm water management in urban areas. The first task for processing thesis was to arrange meeting with MČ Brno - Bohunice Ing. Antonín Crha, who has provided necessary information about the targeted location the and the reservoir for accumulation of rainwater collected. The practical part of the thesis is to capture the rainwater drainage in the existing rainwater sewerage system using the newly built pumping station and then pumping into the existing, unused reservoir. Accumulated water in the reservoir is planned to be used for the needs of the city, gardeners and other customers. The first part of the diploma thesis describes the management of refined water in the Czech Republic, Denmark and Germany. The first part also provides description of measures and technologies for the management of rainwater. Finally, there is description of the pumping station and borehole objects and the program for calculating the rainfall from the urbanized area. In the practical part of the diploma thesis the selected variants are described, rewarded and evaluated. The diploma thesis deals with two variants, that are guided along the same route, with the difference of the construction of the drilled well in the second variant. Both variants are handled by pumping. The option of the gravity inflow was rejected because of the large countersink of rainwater sewerage.
Upgrading of wastewater treatment plant by means of MBR technology.
Spratková, Aneta ; Rusník,, Igor (referee) ; Hlavínek, Petr (advisor)
This diploma thesis is focused on the topic of membrane technologies used in wastewater treatment. The research part of the thesis deals with membrane separation of activated sludge, and the focus is on the submerged membrane modules. The thesis contains basic principles of MBR systems, an overview of used membrane modules, modes of operation, advantages and disadvantages of using this process. The practical part of the thesis proposes the intensification of WWTP Perná with using MBR technology. This part includes the technical-economic assessment of the activation WWTP with the third stage of treatment and activation WWTP with MBR.
Harvesting and reuse of cellulose from wastewater
Kobzová, Kamila ; Úterský, Michal (referee) ; Hlavínek, Petr (advisor)
The goal of this diploma thesis is to highlight the properties of cellulose fibers obtained from waste water and the importance of recycling of raw materials. The main objective is then to further explore the possibilities of using cellulose fibers as a valuable product on the market. The practical part of the thesis is focused on specific research of cellulose properties and design of equipment for sewage treatment plant according to its size.

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