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Dlouhodobé vyhodnocení provozních parametrů ČOV Brno - Modřice
Hejmalíček, Ondřej
The thesis deals with the issue of substance load on the wastewater treatment plant from the adjacent urbanized area. The aim of the thesis is to evaluate the substance load and the amount of wastewater flowing into the WWTP, specifically the parameters of BOD5, CODCr, NH3-N, total nitrogen, total phosphorus, and the volume of inflowing wastewater. The theoretical part of the thesis first describes the basic principles of wastewater treatment, including individual treatment stages and used technologies. It also covers the possibilities of analysis and measurement of individual parameters. The practical part of the thesis presents the results of data analysis obtained from the operation of the wastewater treatment plant. These data were obtained from several decades of monitoring of the operational parameters of the plant and include both basic water characteristics and the performance of the WWTP in individual years. Based on the obtained data, changes and trends that have occurred over the years are subsequently analyzed. The development of individual parameters is analyzed, and their future prediction is carried out. Changes in short-term (days of the week), medium-term (months of the year), and long-term (years) time periods are analyzed, such as changes in substance load or inflow volume, and the impact of rainfall is also assessed. The amount of sludge, which is closely related to the substance load, is evaluated. The thesis also includes an analysis of the impact of the COVID-19 pandemic and related government measures on substance load. In conclusion, the thesis provides an overall assessment of the development of substance load on a large wastewater treatment plant and highlights the aspects that the WWTP operator must consider and how to respond to them in practice or utilize them.
Natural wastewater treatment system in Surabaya, Indonesia
Semrádová, Tereza ; Zedník, Ondřej (referee) ; Kriška-Dunajský, Michal (advisor)
In developing countries, constructed wetland is a possible way to improve the long-term quality of domestic wastewater effluent. It is a treatment plant that reflects the climatic conditions, the quality and quantity of the wastewater discharged and the economic conditions of the country. It offers simplicity in terms of operational requirements. These statements are also addressed in the design work of a constructed wetland in the Indonesian city of Surabaya. The design itself is preceded by an analysis and understanding of the existing wastewater management, which is currently very minimalist in the locality. The thesis develops a proposal for a suitable and sustainable community-based natural wastewater treatment solution for an urban area of up to 1 000 inhabitants. The proposal considers the technical-economic-social aspects and should thus lead to higher efficiency and longer lifetime of the proposed treatment plant. The solution also includes operational recommendations to ensure the long-term operation of the treatment plant. There are hardly any municipal treatment plants in the area, so the possible implementation of a constructed wetland will be the first solution of this kind, which will either ensure future expansion based on positive experience or, on the contrary, be rejected due to unsuitable operation in local conditions.
Handling and disposal of septic water
Petrušková, Kateřina ; Macsek, Tomáš (referee) ; Hluštík, Petr (advisor)
The Bachelor’s thesis is focused on septic water, it’s handling and disposal. The thesis consists of research on the characteristics of wastewater and objects for septic water accumulation. The practical part deals with the analysis of collected septic water samples and the values of wastewater pollution indicators. In addition, options for the design of septic water treatment technologies are presented.
Bactericides in the environment: Occurrence of selected bactericides in wastewater and their impact on the aquatic environment
DUŠÁNKOVÁ, Monika
Bactericides are a group of chemically active substances that exhibit antimicrobial effects. Their ability to kill or inhibit the growth of unwanted microorganisms is widely used in industry and healthcare, but also in household. However, the widespread use of bactericides has resulted in the abundant occurrence of these substances in surface water and wastewater, which subsequently supports the development of antibiotic resistance. Specifically wastewater treatment plants (WWTP) significantly influence the entry of antibiotic resistance genes into the environment. This study aimed to determine the occurrence of bactericides in wastewater and surface water samples, sediments and sewage sludge using high-performance liquid chromatography hyphenated with mass spectrometry. The detected concentrations were used to evaluate removal efficiency and impact on the recipient. The positive removal efficiency was confirmed mainly for the group of quaternary ammonium compounds and some antibiotics. Clarithromycin achieved the highest removal efficiency. Although some monitored substances had a high removal efficiency at the WWTP, their final occurrence proved to affect the aquatic environment. Quaternary ammonium compounds were effectively removed from the wastewater. But mainly thanks to their properties, such as strong sorption to solid substances, i.e., sediments and sludge, they were concentrated in sewage sludge. Using sewage sludge on agricultural land can cause problems by retaining some monitored substances in soils or leaching them into the surface and groundwater. This work briefly described the fate of selected bactericides at the sewage treatment plant and the adjacent recipient. The possible risks of using bactericides and their entry into the environment were pointed out. Given the variety and quantity of bactericides and the severe consequences of their excessive use, this topic deserves wider attention.
Study of variants of sewerage of the village up to 500 EO
Hublová, Nikola ; Úterský, Michal (referee) ; Hluštík, Petr (advisor)
The diploma thesis deals with the design of sewerage and waste water disposal in the selected municipality. In the first part, the village of Dlouhé is presented, including a description of the current state of the current sewage network and a description in the Waterworks and Sewerage Development Plan of the Vysočina Region. The second part of the thesis begins by listing individual alternatives. The design of a new sewage divisional sewer network and the repair of the existing unified sewer system are being addressed here. The next part deals with the design of a wastewater treatment plant, namely a mechanical-biological, container and root treatment plant. The pressure feeder to the wastewater treatment plant in Radešínská Svratka is also being addressed. The alternatives are described from the point of view of technology, economy and compliance with the PRVK of the Vysočina region, and their advantages and disadvantages are also presented. The aim of the work is to recommend the most advantageous solution for sewerage and waste water disposal.
Variant of the study of joint sewerage of selected municipalities
Shamko, Viktoryia ; Mikulášek, Pavel (referee) ; Hluštík, Petr (advisor)
The diploma thesis deals with the assessment of the joint sewerage variant of selected municipalities located in the South Moravian and Pardubice Regions. As part of the thesis, individual municipalities are described in detail in terms of facilities, demographic, geological, and hydrological data. For each municipality, the current and future status of sewerage according to the relevant water supply and sewerage development plan and the municipality's territorial plan was given. A technical description of the drainage design for each municipality is provided, including common sections of the sewer network, a description of the technology, and the design parameters of the wastewater treatment plant. The economic demand for investment and operating costs is assessed for individual municipalities. At the end of the thesis, the drainage option is evaluated in terms of property, financial, technical, and operational aspects.
Variant solution of sewerage in the town of Štoky
Pellarová, Tereza ; Janča, Štěpán (referee) ; Ručka, Jan (advisor)
The diploma thesis follows up a variant assessment of wastewater removal and treatment for the local settlement Zvonějov in the township of Štoky. The work presents the variants of sewerage and wastewater treatment: a new sewage network with a new sewage treatment plant for the settlement of Zvonějov, a new sewage network with a sewage pumping station with pressure sewer for the settlement of Zvonějov with an outflow into the existing sewage network in the township Štoky, and a decentralized method of wastewater treatment with the aid of residential wastewater treatment plants with online transmission to the operator's control room. In the first part of the thesis, a description of the locality is given, the local plan of the village is analysed, as well as the plan for the development of water supply and sewerage systems. Part of the first part of the thesis is a hydrotechnical appraisal of the existing wastewater treatment plant Štoky, which serves as a material for the assessment of Variant II. The second part of the thesis deals with particular variants sewerage and wastewater treatment. In each variant, a technical solution, an economic evaluation, and a calculation of the Net Present Value (NPV) are proposed. Finally, the results are compared, and the pros and cons of the variants are presented.
Determination of distribution of pharmacologically active compounds and their biological degradation during waste water treatment processes
Palyzová, Andrea ; Kyslík, Pavel ; Marešová, Helena
The project is focused on the development of technology for the degradation of persistent active pharmacologically substances (APIs) in wastewater. These substances are biologically active, due to their physicochemical properties often difficult to degrade, their consumption in human and veterinary medicine is difficult to control. By using it alone, even non-metabolized drugs enter the environment. End-user disposal of unused drugs is virtually uncontrollable and is becoming another important source of pollution. APIs are a common nodal point for the main sources of environmental contamination. Unfortunately, in the case of the API series, current WWTP systems are not even capable of capturing, let alone degradation, and are therefore distributed back to the environment via surface waters. The development of persistent APIs degradation technology at the WWTP level is the aim of the project. Its implementation will significantly reduce the level of surface water pollution and thus increase the sustainability of the use of water resources.
Reinforced concrete tank
Vašinová, Martina ; Klusáček, Ladislav (referee) ; Strnad, Jiří (advisor)
Bachelor´s thesis deals with structural design and static assessment of reinforced concrete wastewater treatment plant. Specifically the calculation and assessment to the ultimate limit states (ULS) and seviceability limit states (SLS) of the foundation slab, perimeter wall, flume and his parts. On the basis of reports are prepared drawnings - reinforcement drawings and drawing shapes. The design was made on the values of the outputs of computer program Dlubal RFEM 6.0.1.
Water quality change in small watersheds after sewage water treatment plant building
Rödlová, Sylva ; Langhammer, Jakub (advisor) ; Kvítek, Tomáš (referee) ; Pechar, Libor (referee)
Změny kvality vody v malých tocích, vyvolané vybudováním čistírny odpadních vod, představují doposud málo studované a přitom velmi aktuální téma současné hydrologie. Tato studie se zabývá popsáním těchto změn a faktorů, které je ovlivňují. Pro účely výzkumu bylo vybráno pět malých, zemědělsky využívaných povodí prvního řádu (čtyři povodí průměrně 6 km2 , jedno 16 km2 ). V každém zájmovém území byla vždy jedna vesnice od 640 do 2 500 obyvatel. Během 7 - 16 let trvajícího měsíčního monitoringu základních indikátorů kvality vody (O2, BSK5, CHSKCr, TOC, konduktivita, N-NH4, N-NO2, N-NO3, PC, P-PO4) byla zachycena stavba čistíren v obcích. Spolu s daty o účinnosti čistíren byly vyhodnoceny změny kvality vody v toku. Identifikované typy změn ukazují na problematické aspekty vývoje kvality vody v malých povodích. Kromě očekávaného rychlého a razantního snížení hodnot zátěže po výstavbě čistírny odpadních vod se vyskytují i odlišné projevy změn - pouze mírné snížení zátěže, stagnace, dokonce i zvýšení koncentrací sledovaných indikátorů. Mezi další typické změny patří navýšení hodnot 1-2 roky před uvedením čistírny do provozu a opožděná nitrifikace v toku způsobená nevhodným provozem čistírny. Mezi nejdůležitější faktory ovlivňující změny patří provoz čistírny, velikost průtoku recipientu, zemědělské...

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