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Energetic utilization of wastewater
Žáček, Jan ; Raček, Jakub (referee) ; Hlavínek, Petr (advisor)
Diploma thesis presents various methods of energetic utilization of wastewater. It shows that wastewater is source of heat energy that has not been used yet. The thesis focuses mainly on heat recovery from wastewater from sewer bypass by modular heat exchangers. Design of heating of polyfunctional building from bypass from main sewer in Brno is developed. The main finding is that wastewater as low potential source of energy can together with heat pump be not only used for heating and heating of domestic hot water but also for cooling of polyfunctional object. Part of work is also technical-economical assessment by the NPV method.
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Acquiring of phosphorus from sewage sludge
Boubínová, Marie ; Chorazy, Tomáš (referee) ; Hlavínek, Petr (advisor)
The diploma thesis is focused on phosphorus recovery from sewage sludge. In the first part of the thesis, research of phosphorus recovery from sewage sludge is explained. Reusing of phosphorus, a critical material of mankind, is expressed with the principles of the circular economy. The second part of the thesis defines the potential of phosphorus extraction from sewage sludge from medium-sized (Trutnov WWTP) and large (Modřice WWTP) wastewater treatment plant and a technical and economic study of the proposed phosphorus recycling system at these wastewater treatment plants is described.
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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.
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Use of microwave pyrolysis products
Zdeňková, Petra ; Macsek, Tomáš (referee) ; Hlavínek, Petr (advisor)
This bachelor thesis focuses on the use of microwave pyrolysis products. The first part deals with microwave pyrolysis and the use of products from it in industry. The second part of the thesis describes the testing of the waste water sample from the municipal WWTP on a filter column filled with a biochemist. The aim of this thesis is to determine the efficiency of removal of selected microcomputers
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Energetic optimisation of WWTP´s operation
Čížová, Veronika ; Vachovec, Roman (referee) ; Hlavínek, Petr (advisor)
The reduction in energy consumption is nowadays of increasing importance also within the field of waste water treatment. In combination with increasing requirements for the WWTP (waste water treatment plant) outlet quality, the energy optimization becomes very challenging for the plants operators. This thesis presents possible approaches to the energy optimization and summarizes technologies and measures, where some of them are in the research phase while others are already implemented successfully. In particular, the contribution of the activation tanks aeration process to the overall energy consumption of a plant is highlighted. A change in the aeration control is tested using a mathematical model of WWTP in Mikulov, South Moravia in Czech Republic. In the new setting the aeration is regulated based on the concentration of nitrogen compounds in the activation tank. There is also a brief survey of the energy consumption of the plant and an outline of other possible energy conservation measures.
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Technology of wastewater reuse
Velikovská, Kristýna ; Raček,, Jakub (referee) ; Hlavínek, Petr (advisor)
This diploma thesis presents the knowledge of wastewater reuse. The theoretical part of the thesis describes types of wastewater (greywater, brownwater, and yellow-water) and their characteristics. Further, the theoretical part describes the possibilities of re-use of wastewater as a source of water in detail, including treatment technology, and the heat recuperation from wastewater. The practical part of the thesis uses gained knowledge for designing a greywater treatment and heat recovery technology of grey water in an apartment complex.
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Removal of selected pharmaceuticals from the treated wastewater by oxidation processes
Novotný, 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.
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Use of oxidation processes (AOP) for removal of micropolutants
Stříteský, Luboš ; Pešoutová,, Radka (referee) ; Hlavínek, Petr (advisor)
This thesis deals with advanced oxidation processes (AOPs) and it’s use for removal of micropollutants from wastewater. The first chapter explains the need AOPs, water quality, pollution and substances that are present in the water. Further, the first chapter outlines approach of the current legislation to micropollutants. The second chapter explains the theory and principle of operation of AOPs. This chapter is divided into two sections. The first section describes AOPs, which were tested at selected WWTP. In the second section, there are described some other AOPs. The third chapter is a literature retrieval of AOPs dealing with the removal of micropollutants. This chapter is focused on the removal of hormones by AOPs using ozone-based AOPs. The fourth chapter describes the actual testing of selected AOPs. The chapter describes selected WWTP, pilot-scale AOP unit and test results. In the last chapter there is designed and described full-scale AOP tertiary unit for removing of micropollutants. The last chapter also contains economic analysis of the proposed tertiary unit.
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Anaerobic membrane bioreactor (AnMBR) for food industry wastewater treatment.
Polášek, Daniel ; Bodík,, Igor (referee) ; Rusník,, Igor (referee) ; Hlavínek, Petr (advisor)
The most significant environmental problems related to the food industry is water consumption and pollution, energy consumption and waste production. Most of the water that does not become a part of the products ultimately leaves plants in the form of wastewater, which is often very specific and requires adequate handling / treatment / disposal. For the purpose of this thesis, brewery industry was chosen, because of its very long tradition in the Czech history and culture. Anaerobic technologies are applied for still wider range of industrial wastewater treating. In general anaerobic membrane bioreactors (AnMBRs) can very effectively treat wastewater of different concentration and composition and produce treated water (outlet, permeate) of excellent quality, that can be further utilised. At the same time, it can promote energy self-sufficiency through biogas production usable in WWTPs / plants. Main disadvantages include unavoidable membrane fouling and generally higher CAPEX / OPEX. Within the framework of Ph.D. studies and related research activities, immersed membrane modules for anaerobic applications were selected and lab-scale tested (designed and assembled laboratory unit), an AnMBR pilot plant was designed, built and subsequently tested under real conditions - at Černá Hora Brewery WWTP (waste waters from the brewery and associated facilities). The pilot AnMBR and the technology itself has been verified over more than a year (5/2015 – 11/2016) of trial operation - the initial and recommended operational parameters have been set up, minor construction adjustments / modifications and measurement & regulation optimizations have been made, the recommended membrane cleaning and regeneration procedure has been verified. Last, but not least, conclusions and recommendations of the trial operation were summarised - some key findings and recommendations for further operation, use and modifications of the existing AnMBR pilot plant are presented.
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