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The apply digestate at operate of biogas plant agricultural type
ČÁPOVÁ, Aneta
Comparing inputs needed to operate biogas stations, this Bachelor paper focuses on the composition of digestate and on its use in five examined stations. The paper is split into two sections: theoretical and practical. The theoretical section, i.e. a summary of relevant literature, explains the basic concepts and other issues related to the biogas proper, biogas generating stations, substrates and digestates. The practical section deals with experimental data obtained from the five stations. The data were acquired through a questionnaire wherein the stations' operators described their facilities while specifying the parameters; substrates applied; methane yield figures; results of digestate analyses; and their methods of application.
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Denitrification in soils with different nutrient inputs
ŘÍHOVÁ, Gabriela
The aim of this thesis was to estimate denitrification activity in four agricultural soils which are managed differently regarding type and amount of fertilizers. Potential denitrification, soil respiration and denitrifying enzyme activity were determined in laboratory experiments. In additional experiment, the impact of changes in soil pH on denitrification characteristics was studied.
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Using of digestate of agricultural biogas stations
VERNER, Dušan
This work deals with problems of agricultural biogas stations with the focus on using of final product of anaerobic fermentation, digestate, on agricultural soil. It evaluates its fertilizing effect in comparison to industrial fertilizers. The results showed that the fertilizing effect can improve economy of growing plants, however it depends on quality of digestate, constitution of base input material and technology of processing. It is not possible to use digestate anytime, it depends on growing crops and its technology. Nevertheless digestate as a final product of anaerobic fermentation is an interesting fertilizer.
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