National Repository of Grey Literature 160 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Study of wastewater management solutions for the village of Lhotka
Vojvodík, David ; Pumprlová Němcová, Miroslava (referee) ; Kriška-Dunajský, Michal (advisor)
The bachelor's thesis is focused on the processing and comparison of possible variants of sewerage in the Lhotka locality. It presents a proposal for three variants for improving the state of wastewater management in Lhotka. Option 1 envisages the design of a mechanicalbiological WWTP for sewage, with the proviso that the existing unified sewer will be used for rainwater drainage. Option 2 includes the design of an extensive type of wastewater treatment plant and the completion of the existing integrated sewerage system. The last variant 3 includes the pumping of wastewater by discharge to the Malenovice WWTP. The solution is in accordance with PRVKZK. An overview of economic demands is created for individual technological solutions. The aim is to determine the most suitable solution from an economic and technical point of view.
Technical and economic assessment of projects of wastewater treatment plants and their impact on the environment
Turková, Jiřina ; Zúbková,, Mária (referee) ; Götzová,, Dagmar (referee) ; Hromádka, Vít (referee) ; Korytárová, Jana (advisor)
The doctoral thesis deals with the issue of evaluating of technical-economic efficiency of wastewater treatment plant projects. Same as most public benefit projects, the main reason for implementation is the societal benefit of the company, not the impact on the investor. The literature review provides an overview of the most commonly used methods of environmental impact assessment, which differ in both the difficulty of processing and in the structure of input and output information. In accordance with the European legislation, the Cost Benefit Analysis (CBA) is applied to a selected sample of waste water treatment plants, in its economic part, the standardly assessed societal impacts are extended by other possible benefits associated with the implementation of the project implementation. The main output of the thesis is the quantification of the increment to the societal benefit of the project, which is set to the difference between the economic net present value of the investment and the standard and individually designed socio-economic impacts. As an alternative to the traditional approach, the thesis also simulates the Data Envelopment Analysis (DEA), method is based on multi-criteria evaluation shows the technical efficiency of the sewage treatment plant sample and thus serves as a very effective tool in managerial decision-making.
Design of Selected Parts of Machinery in WWTP focused on Improving Hydraulic Efficiency
Zejda, Vojtěch ; Reppich, Marcus (referee) ; Jegla, Zdeněk (referee) ; Máša, Vítězslav (advisor)
The wastewater treatment process is one of the most important processes which contributes to the protection of the environment. This process can also potentially recover necessary and scarce raw materials, such as phosphorus. Research of the wastewater treatment technology is an increasingly relevant topic and more innovative knowledge should be gradually implemented into existing plants. However, the implementation of such technology involves increased investment and often operating costs. This is, why there is a growing interest in improving the energy intensity and hydraulic efficiency of the installed wastewater plant machinery. The optimization of operating parameters in such machinery can also bring significant savings, which can be potentially re-invested into other technologies. This work deals with the issue of proper evaluation of installed machinery for the selection of operating parameters and assessment of their significance. As the challenge, wastewater treatment technology is very sensitive towards the combination of technological equipment and incorrect operational parameters can lead to erroneous evaluation of the efficiency of individual equipment or inappropriate engineering proposals. To eliminate these risks, an analytical procedure for the selection and evaluation of parameters is proposed in this work. This procedure is demonstrated on six types of equipment. To verify the conclusions of the proposed procedure, a model design of the equipment was performed, in which the influence of individual parameters was concisely assessed. By using the data, the proposed procedure could be validated more specifically. In this work, the necessary data for the design was obtained by experimental research and extensive testing. The results confirm the practical applicability of the proposed procedure.
Hodnocení účinnosti čistírny odpadních vod v obci Bílovice nad Svitavou
Štěpánková, Lucie
The diploma thesis The Evaluation of the effectiveness of the the wastewater treatment plant in Bílovice nad Svitavou compares effectivity of wastewater treatment technology before reconstruction and after it. Literature search is focused on waste water. In this chapter are also described drainage buildings their concept and meaning. Very important part of the thesis is overview of water legislation and sewage contamination indicators and sludge index. Results part of the thesis contains description of Bílovice nad Svitavou municipality. Next chapter is description of the wastewater treatment plant before and after the reconstruction. In this chapter you can find information about sludge index. The most important chapter is an evaluation of results which contains graphical explanation of the level of dirty water. The original wastewater treatment plant was quite advanced but the reconstruction was necessary due to increasing population. The capacity was increased up from 1 250 to 7 750 equivalent residents. Current technology is designed to comply with actual needs of the city and microregion and it is prepared for its future enlargement. The wastewater treatment plant fulfill requirements for minimal concentration levels of pollution in waste water on the outflow to the recipient and does not exceed emission standarts.
Vliv ČOV na kvalitu vod v jeskynních systémech Moravském krasu
Poláček, Marek
Final thesis called Influence of wastewater treatment plant on water quality in caves systems in Moravian karst. In the first part is legislation list of requirements on wastewater treatment plant, description ongoing intensification on basin Jedovnický brook. In the second part are results from consumptions and comparing with similiar thesis, legislation requirements and norm. In the practical part was analyzed: temperature, oxygen, electrolytic conductivity, redox potential, hydrogen exponent, biochemical oxygen consumption, chemical oxygen consumption, nitrates
Vyhodnocení účinnosti čistírny odpadních vod v obci Veverská Bítýška
Navrátilová, Lucie
The diploma thesis is focused on evaluate the efficiency of wastewater treatment plants in the village Veverská Bítýška. Part of the thesis is a literary research, which defines: the basic information about water, wastewater, wastewater treatment and related legislation. Other items of work are characteristic of interest territory and characteristic of selected wastewater treatment plant. In the context of the methodology of the diploma thesis are described selected indicators of water quality and individual determinations in the field and laboratory. Results for the set of indicators of water quality are processed in tables and the graphs, which are accompanied by brief descriptions. Efficiency of wastewater treatment plants is calculated from the acquired measurement results. At the end of the diploma thesis its the overall assessment. Efficiency of wastewater treatment plants always meet the set legislative limits. Values were almost always over 90%.
Vyhodnocení účinnosti čistírny odpadních vod v Lipníku nad Bečvou
Masařová, Markéta
The thesis "Evaluation of the effectiveness of the wastewater treatment plant in Lipník nad Bečvou" compares the effectiveness of wastewater treatment before and after the plant reconstruction. This work is comprised of the theoretical and practical part. The theoretical part applies overview of the water law legislation, sewerage, types of wastewater and concrete methods of wastewater treatment. The practical part is focused on wastewater treatment in the city. Included is the transport of wastewater, description of treatment technology before and after plant reconstruction. Follows the graphical results of wastewater treatment plant load, analytic wastewater checks and effectiveness of the WTP (Wastewater Treatment Plant) in years 2005 and 2015. The results show that the original wastewater treatment technology was, according to compliance with the emission standards, insufficient. For this reason, complete WTP reconstruction followed. From the current WTP results, it is evident that the hydraulic load is at 50 % average, but it is overloaded with the substance. Despite this fact, WTP maintains its high effectiveness in pollution elimination. The levels of pollution on the WTP output do not exceed the values of the emission standards and limits.
Vliv srážkových vod na provozování kanalizační soustavy a čistírny odpadních vod
Lysák, Martin
This thesis deals with current issues in the discharge of waste water from the urbanized area. The main aim is to evaluate the impact of rainwater on the existing unified sewerage system and the wastewater treatment plant in Brno. The theoretical part includes a brief assessment of the current state of the sewerage system of the city of Brno and the basic concepts as well as their use in everyday practice. The practical part focuses on monitoring the quantity and quality of rainwater in the sewage system at the wastewater treatment plant in Brno. These indicators have a direct impact on the safe operation of the sewerage system and wastewater treatment plants within the urban drainage. From this perspective, the work is focused on the evaluation of substance rainwater pollution discharged from busy traffic roads, both in the case of using of a single sewerage system for wastewater treatment and using a separate sewerage system that water to the recipient. To evaluate the function of the municipal sewerage system during extreme precipitation when the sewerage system is overloaded and wastewater overflows over the strain into the recipient. The contribution of the construction of one of the newly implemented retention basins was assessed. At the end of the sewerage system, the wastewater treatment plant, there were monitored changes in material composition, as well as the quantity and temperature of the influent wastewater during precipitation events, which affect the individual cleaning processes. In the conclusion, there is made an overall evaluation of the impact of precipitation water on drainage system of the city of Brno and its wastewater treatment plant. At the same time, there are evaluated newly designed concepts of drainage with respect to the already implemented measures for minimizing the impact of operational activities of sewerage system on the environment, especially the measures that aim to reduce the bag load of recipient.
Studie zhodnocení kalového hospodářství městské čistírny odpadních vod (ČOV)
Koukalová, Dana
Diploma thesis focuses on the evaluation of the sludge management of the municipal sewage treatment plant. The thesis is divided into the theoretical and practical part. The theoretical part deals with the formation of sewage sludge at WWTPs, composition, properties and possibilities of their treatment, their utilization or subsequent liquidation as well as legislation of the Czech Republic and the European Union. The practical part deals with the technological description of the waste water treatment plant Tišnov Březina and with the wastewater treatment process of the WWTP. Another part of the thesis evaluates the efficiency of the cleaning process and the hydraulic load of the WWTP, describes the operational problems of the technological processes in the waste water treatment, especially the sludge management, and subsequently focuses on the design of measures, which are suitable especially for anaerobic sludge stabilization, biogas production, and last but not least a series of dewatering and drying of sewage sludge.
Měření obsahu těžkých kovů v čistírenském kalu
Hanzlíčková, Iva
This diploma thesis is focusing on heavy metals content measuring in sewage sludge. The thesis is divided into theoretical and practical part. The theoretical part deals with valid legislation of the Czech Republic, with toxic effect of heavy metals on environment and population health, and with X-ray spectrometry and technical equipment of selected WWTPs.

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