Biogas is created in a multistage process in which different microorganisms use the energy stored in carbohydrates, fats and proteins for their metabolism. An optimal production of biogas, as well as a stable plant operation requires detailed knowledge of the biochemical processes. The use of mathematical models can help achieve the necessary deeper understanding of the process. The use of models thus remains mostly confined to artificial substrates under narrowly defined constraints. The objective of this thesis has therefore been the use of mathematical simulation for complex natural substrates under variable natural constraints. In this thesis, the anaerobic fermentation process has been investigated via simulation for four different substrates: domestic waste, liquid manure co-fermented with co-substrates, lignocellulosic biomass and municipal wastewater.
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Biogas is created in a multistage process in which different microorganisms use the energy stored in carbohydrates, fats and proteins for their metabolism. An optimal production of biogas, as well as a stable plant operation requires detailed knowledge of the biochemical processes. The use of mathematical models can help achieve the necessary deeper understanding of the process. The use of models thus remains mostly confined to artificial substrates under narrowly defined constraints. The object...
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