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Evaluation of the efficiency of root treatment plants via ecotoxicity tests
Konečná, Kateřina ; Procházková, Petra (referee) ; Zlámalová Gargošová, Helena (advisor)
This bachelor thesis focuses on the evaluation of the efficiency of root treatment plants using appropriately selected ecotoxicity tests. For these purposes, ecotoxicological tests in an aquatic arrangement were used, specifically with the planktonic organism Thamnocephalus platyurus and the plant Lemna minor. The evaluation was performed at a municipal root treatment plant, which treats water for 955 equivalent inhabitants. The results of tests with T. platyurus confirmed that the root treatment plant sufficiently relieves acute toxicity of water. LC50 values were determined for two samples, 213.71 ml / l for the inflow and 388.20 ml / l for the settling tank. At the outflow, these values could no longer be determined due to the low ecotoxicological effect of the water thus treated. For tests with L. minor, IC50 values were also calculated for the first two samples. For Sample No. 1, the IC50 value was calculated to be 311.25 ml / l, for Sample No. 2 to 963.35 ml / l. However, on the basis of tests of direct toxicity of waters with L. minor, it is possible to confirm even in the case of this organism, a good cleansing effect of this root treatment plant.
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Natural wastewater treatment plant project for the municipality of Hačky
Kulichová, Jana ; Pumprlová Němcová, Miroslava (referee) ; Kriška-Dunajský, Michal (advisor)
The aim of the thesis is research, description, and subsequent calculation and design of the natural wastewater treatment plant. The conclusion is the processing of project documentation. The thesis is divided into the theoretical and practical parts. In the theoretical part, the aim is a general description of the location and research of natural wastewater treatment plant technologies for small municipalities. In the practical part, there is designed project documentation, which will be used as an input basis for zoning management and building permit.
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Project of a natural wastewater treatment plant for the municipality of Oponešice
Kraváček, Václav ; Zedník, Ondřej (referee) ; Kriška-Dunajský, Michal (advisor)
The diploma thesis deals with the design of a natural wastewater treatment plant for the municipality of Oponešice. The introduction of the thesis focuses on general research presenting the issue of natural wastewater treatment plants (WTP). Except for a short introduction of natural treatment plants, the related legislative regulations are presented in the introductory part, the work is devoted in more detail to the presentation of individual monitored indicators of wastewater pollution and a description of individual technological elements at root treatment plants. The second and main part of the work is the complete design of the wastewater treatment plant for the village of Oponešice. First, attention is paid to collecting information about the given locality. Next follows the design of the technical solution of the treatment plant itself, in which care was taken to meet all the requirements placed on treated wastewater, with an effort to design the best available technology for the municipality of Oponešice. Within individual objects, input parameters and subsequent calculations are always given, accompanied by a description of individual details. As the main stage of cleaning, a two-stage vertical system of the so-called Austrian type, supplemented by pre-cleaning with the help of an anaerobic separator, is proposed. At the end of the work, an evaluation of the overall efficiency of the proposed technology is described and a confrontation with the applicable legislation is carried out. Last but not least, an important part of the work includes the preparation of complete project documentation (drawings and textual parts), which is to serve as input material for the issuance of zoning regulations and building permits.
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Natural wastewater treatment plant project for the municipality of Skřipov
Hubený, Michal ; Pumprlová Němcová, Miroslava (referee) ; Kriška-Dunajský, Michal (advisor)
The diploma thesis deals with the substantive design of a natural wastewater treatment plant of the French system for the municipality of Skřipov. The proposed sewage treatment plant has an expected size for 800 EO. The whole thesis is divided into two parts. In the theoretical part, the details of the area under consideration, especially the municipality of Skřipov, are presented and thoroughly described. Furthermore, a general research on the topic of natural wastewater treatment plants was written by the author of the thesis. In the theoretical part of the thesis there is also a detailed description and introduction to the system of French vertical wastewater treatment plants. The practical part is the design of a natural wastewater treatment plant for the municipality of Skřipov. The thesis describes in detail the design procedure of the treatment plant and its calculations. The work includes project documentation that will serve as a basis for the issuance of a building permit.
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Evaluation of the efficiency of root treatment plants via ecotoxicity tests
Konečná, Kateřina ; Procházková, Petra (referee) ; Zlámalová Gargošová, Helena (advisor)
This bachelor thesis focuses on the evaluation of the efficiency of root treatment plants using appropriately selected ecotoxicity tests. For these purposes, ecotoxicological tests in an aquatic arrangement were used, specifically with the planktonic organism Thamnocephalus platyurus and the plant Lemna minor. The evaluation was performed at a municipal root treatment plant, which treats water for 955 equivalent inhabitants. The results of tests with T. platyurus confirmed that the root treatment plant sufficiently relieves acute toxicity of water. LC50 values were determined for two samples, 213.71 ml / l for the inflow and 388.20 ml / l for the settling tank. At the outflow, these values could no longer be determined due to the low ecotoxicological effect of the water thus treated. For tests with L. minor, IC50 values were also calculated for the first two samples. For Sample No. 1, the IC50 value was calculated to be 311.25 ml / l, for Sample No. 2 to 963.35 ml / l. However, on the basis of tests of direct toxicity of waters with L. minor, it is possible to confirm even in the case of this organism, a good cleansing effect of this root treatment plant.
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