Journal article

Publication year: 2021

Journal: Bioresource Technology

Volume number: 333

ISSN: 0960-8524

eISSN: 1873-2976

DOI Link: https://doi.org/10.1016/j.biortech.2021.125124

Publisher: Elsevier

Abstract: 
Rigorous process models provide a reliable basis for model-based monitoring and control of anaerobic digestion plants. Due to the complex model structure and non-linear system characteristics, the established Anaerobic Digestion Model No. 1 (ADM1) is rarely applied in industrial plant operation. The present investigation proposes a systematic procedure for successive model simplification and presents the description of five model variants of a mass-based ADM1. Individual model structures greatly differ in their number of implemented process phases, characteristic components and required parameters. Simplified model variants combine nutrient degradation and biogas formation based on first-order sum reactions, whereas complex model structures describe individual degradation pathways and intermediates during acido- and acetogenesis. Characteristic features of the derived model structures as well as the stoichiometric methane potentials and microbial biomass yields of the underlying degradation pathways of individual model variations are evaluated and discussed in detail.

Harvard Citation style: Weinrich, S. and Nelles, M. (2021) Systematic simplification of the Anaerobic Digestion Model No. 1 (ADM1)-Model development and stoichiometric analysis, Bioresource Technology, 333, Article 125124. https://doi.org/10.1016/j.biortech.2021.125124

APA Citation style: Weinrich, S., & Nelles, M. (2021). Systematic simplification of the Anaerobic Digestion Model No. 1 (ADM1)-Model development and stoichiometric analysis. Bioresource Technology. 333, Article 125124. https://doi.org/10.1016/j.biortech.2021.125124