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Production and characterization of biochar derived from different kind of bran
Černíková, Eliška ; Kalina, Michal (referee) ; Pořízka, Jaromír (advisor)
The bachelor thesis was focused on production and characterization of biochar prepared from different sorts of bran. According to the philosophy of circular economy bran, the biproduct of flour production, was chosen for the production of biochar. This lignocellulosic material was walked through pyrolysis to broaden potential application. Biochar was prepared by slow pyrolysis and considering its properties multiple applications are possible. Biochar’s usage is limited by European Biochar Certificate. The theoretical part contains general description of biochar properties, requests of European Biochar Certificate and possible analytical methods. In the practical part process of biochar preparation and biochar characterization per chosen methods are described. Analysed properties were: specific surface, pH, particle size distribution, electrical conductivity, composition of elements and content of polycyclic aromatic hydrocarbons. Based on measured data possible applications were recommended. Only biochar from rye bran fulfilled the strict criteria of European Biochar Certificate. However all of the prepared materials can be used in agriculture, except from rice bran biochar which according to EBC can only be used in material industry.

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6 Černíková, Eva
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