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Properties of anaerobic sewage sludge from small producers
Pospíšil, Jaroslav ; Kriška-Dunajský, Michal (referee) ; Hyánková, Eva (advisor)
The bachelor thesis deals with today's wastewater treatment from small producers and characteristics of primary sludge. Work is focused on natural ways of wastewater treatment. The main attention is devoted to the primary sludge. In the next section are based on laboratory tests, where samples are tested properties. There is tested the primary sludge from the mechanical pre-treatment, and namely from the sedimentation tank.
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Sledování vybraných parametrů čistírenského kalu
Hirschová, Linda
This thesis deals with the evaluation and characterization of sludge parameters relevant to the drying process and subsequent energy recovery. The main parameters monitored are the dry matter of the sludge, the loss on ignition, the calorific value of the primary, thickened and dewatered sludge. Marginally, the paper also deals with the evaluation of pH, conductivity and oxidation-reduction potential. In particular, the characteristic of dewatered sludge entering the drying process is central. The dry matter of the dewatered sludge ranged from 13.5 to 25.7 %. The measured values of the calorific calorific value of the dewatered sludge ranged from 10.2 to 17.9 MJ∙kg-1, an assessment observed a dependency between the loss on ignition and the calorific value of the sludge. The impact of thickening (gravitational, mechanical) and stabilization (aerobic, anaerobic) sludge technology is taken into account in the evaluation. Part of the thesis deals with statistical evaluation of the effects of seasonality on monitored parameters.
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Posouzení budoucího vývoje zpracování kalu na ČOV Modřice
Zidek, Michal
This diploma thesis deals with the sludge line at the wastewater treatment plant (WWTP) in Modřice. In the theoretical part is briefly described the general principle of the wastewater treatment plant and more detailed description of technologies used in sludge treatment on sludge lines of larger WWTPs. There are also mentioned new technologies for sludge pretreatment as well as some new perspective technologies for thermal sludge treatment. In the next part the sludge line at the Modřice wastewater treatment plant is described in more details and there are presented places from which the data for the practical part were obtained. The practical part compares the acquired data from years 2015 and 2016. These years are compared with each other, then they are compared with the design parameters of the sludge line during its reconstruction in 2004. In conclusion, on the basis of the evaluation of the obtained data, there are presented proposals that should lead to the improvement of the sludge line function.
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Properties of anaerobic sewage sludge from small producers
Pospíšil, Jaroslav ; Kriška-Dunajský, Michal (referee) ; Hyánková, Eva (advisor)
The bachelor thesis deals with today's wastewater treatment from small producers and characteristics of primary sludge. Work is focused on natural ways of wastewater treatment. The main attention is devoted to the primary sludge. In the next section are based on laboratory tests, where samples are tested properties. There is tested the primary sludge from the mechanical pre-treatment, and namely from the sedimentation tank.
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