4.2 Article

Modeling of Anaerobic Digestion Considering Biowaste by Syntrophic Propionate-Oxidizing Bacteria

Journal

CHEMIE INGENIEUR TECHNIK
Volume 90, Issue 8, Pages 1056-1064

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cite.201800006

Keywords

Biogas; Mathematical modeling; Propionate-oxidizing bacteria; Wet digestion of biowaste

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Anaerobic digestion of biowaste allows a sustainable production of bioenergy and reduces environmental burden. The anaerobic digestion phase was modeled with Anaerobic Digestion Model No.1 (ADM1), which was extended to include three genera of propionate-oxidizing bacteria and two routes of propionate degradation, namely methyl-malonyl CoA and C6-dismutation pathway. Kinetic parameters for anaerobic propionate oxidation were determined with defined tricultures of the three propionate-oxidizing genera together with hydrogenotrophic and acetotrophic methanogens and implemented into ADM1, resulting in the improved model ADM1xpro.

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