Anaerobic digestion of biowaste not only reduces environmental burden but also plays an important role for sustainable energy supply. For process optimization simulation based on the Anaerobic Digestion Model No. 1 (ADM1) is commonly used.

The ADM1 was extended to include the known three genera of propionate oxidizing bacteria (POB) and the two routes of propionate degradation (methyl-malonyl CoA and C6-dismutation pathway). Kinetic parameters for anaerobic propionate oxidation by single strains of the three propionate oxidizing genera were determined from defined tri-cultures of the POB with hydrogenotrophic and acetotrophic methanogens and implemented into ADM1. The such improved model ADM1xpro was evaluated with operational data from a full scale wet biowaste digestion plant. Predicted amounts of biogas and composition with ADM1xpro (2201 m³ d⁻¹, 68.1% CH₄ and 31.9% CO₂, respectively) correlated well with full-scale process data (2171 m³ d⁻¹, 67.5% CH₄ and 31.9% CO₂).

生物废物的厌氧消化不仅减轻了环境负担，而且对可持续能源供应也起着重要作用。对于基于1号厌氧消化模型（ADM1）的过程优化仿真，通常使用。

ADM1扩展到包括已知的丙酸氧化细菌（POB）的三个属和丙酸降解的两种途径（甲基-丙二酰辅酶A和C6-歧化途径）。根据定义的POB与氢营养型和乙营养型产甲烷菌的三联培养确定了三个丙酸氧化属的单株厌氧丙酸氧化的动力学参数，并将其应用于ADM1。使用来自大型湿生物废料消化厂的运行数据评估了这种改进的模型ADM1xpro。沼气和组合物与ADM1xpro的预测量（2201立方米d ^-1，68.1％CH ₄和31.9％的CO ₂分别）与全规模工艺数据（2171立方米d很好的相关性^-1，67.5％CH ₄和31.9％的CO ₂）。