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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
The use of the reactor with sludge cloud and external biomass separator for methane production from the substrate for Biogast Plant
 ŽIVNÝ, Jakub
The aim of the study was to compere the reactor with sludge cloud and external separator biomass in different modes. This typ of reactor is principally used in wastewater treatment and in this work was designed for production of biogas from biosmass, commonly used in agricultural biogas plants. The reactor assembly was prepared in the laboratory of the available glass flasks, connected by rubber tubing and mixing pump. The entire device was immersed in a water bath heated thermostat. For the purpose of this work was used samples from biogas Týnec near Dobrovice at Mladoboleslavko. The reaktor was injectable liquid portion, formed after adjusment method IFBB (Integrated Generation of Solid Fuel and Biogas from Biomass). The principle of this method consists in separating the liquid and solid components of biomass. Operation of the reactor was carried out in three stirring models: without stirring, medium stirring, intensive stirring. Further, the operation was compared at 40°C and 53 °C in a mode without stirring. This monitoring is carried abut for five hours. The specimens was taken every hour and after drying to COD (determine chemical oxygen demand), which expresses the degree of degradation of organic matter. The results show that the laboratory devie model stirring does not show. However, the temperature change from 40°C to 53°C showed an increased degradation of organic matter.
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The use of the reactor with sludge cloud and external biomass separator for methane production from the substrate for BPS Chotýčany, processed by IFBB technology (Integrated Generation of Solid Fuel and Biogas from Biomass)
 BROŽEK, Jiří
There were two points of research in this graduation work. The first was IFBB technology (Integrated generation of Solid Fuel and Biogas from Biomass) used for preparation of the substrate for fermentation. The second point was to test reactor with sludge cloud (completed with external biomass separator). This reactor was filled by substrate (prepared by IFBB technology) from agricultural biogas energy plant located in Chotýčany. After IFBB preparation substrate was filled in laboratory reactor´s group. Then it was inoculated by digestate. Digestate is a substance, which is in the end of fermentation process. That substance was first taken in biogas station Chotýčany, then, for comparsion, from station Věžovatá Pláně. Results are that IFBB technology is good for substrate preparation and folowing fermentation is better. Reactor with sludge cloud is good for intensive fermentation. Efficiency of the reactor was measured by CHSKCr. The best fermentation was found after using inoculum from Věžovatá Pláně. The best temperature for fermentation was 50 degree Celsius for both inoculums.
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