Dynamic simulation of an anaerobic digestion plant using OpenModelica

Learn how to build and analyze a comprehensive dynamic simulation of an anaerobic digestion plant using OpenModelica . This video walkthrough explains how to apply the industry-standard Anaerobic Digestion Model No. 1 (ADM1) mathematical framework to simulate complex biological and chemical reactor processes . In this video, we cover: • The core biochemical stages: Hydrolysis (R1), acidogenesis, acetogenesis, and methanogenesis . • Modeling the Continuous Stirred-Tank Reactor (CSTR_ADM) with specialized inflow and outflow connectors to track mass balance, flow rates, and temperature adaptation . • Physicochemical dynamics such as pH inhibition functions, Henry's Law-based gas-liquid equilibria, and carbon balances . • Advanced circuit and plant integrations, showing how to simulate the electrical heating system, control loops via a difference amplifier circuit, operational voltages, currents, and liquid levels . • How open-source modeling with differential-algebraic equations (DAEs) gives wastewater engineers full transparency over model equations for process optimization .Download the Modelica project files directly from the engineering platform to run the simulation and analyze the results yourself