Modeling of Biomethane Production from Multiple Organic Wastes based on Modified ADM1  

作　　者：Yujing Guan Yange Yu Zhiqiang Hou Fangze Shang Guangli Cao Ping Yang 

机构地区：[1]National Local Joint Engineering Research Center for Biomass Energy Development and Utilization,School of Environment,Harbin Institute of Technology,Harbin 150090,China [2]Power China Eco-Environment Group Co.,Ltd.,Shenzhen 518101,China

出　　处：《Journal of Harbin Institute of Technology(New Series)》2025年第2期1-13,共13页哈尔滨工业大学学报(英文版)

基　　金：Sponsored by Power China Eco-Environment Group Technology Project(Grant No.ST-ZB-ZC-JY-JS-2022-25);Heilongjiang Key Research and Development Program(Grant No.GA21C025);Technological Project of Heilongjiang Province“the open competition mechanism to select the best candidates”,and Foundation of National Local Joint Engineering Research Center for Biomass Energy Development and Utilization(Grant No.2021B006).

摘　　要：The Anaerobic Digestion Model No.1(ADM1)has been modified to include enhanced kinetic parameters,which more precisely simulate methane production during the anaerobic digestion of diverse organic solid wastes.Calibration and validation of the model were achieved using experimental data from batch fermentation processes.Simulations of the updated ADM1 were conducted using AQUASIM 2.0 software.Sensitivity analysis helped identify and assess the most critical kinetic parameters affecting biogas production.Key parameters such as the microorganism decay constant(d-1),disintegration rate constant(d-1),Monod maximum specific substrate uptake rate(gCOD/gVSS·d),and half⁃saturation constants were found to significantly influence biogas yield.The optimal values for these parameters were identified as 0.03,6.07,3.64,and 0.27,respectively.These optimized values were validated through batch experiments.The modified ADM1 successfully predicted methane production,achieving R2 values greater than 0.8 in all validation trials.Key methanogens,Methanosarcina and Methanosaeta,were identified,and their enrichment during mixed fermentation of various organic solid wastes indicated enhanced methane production via aceticlastic methanogenesis.The microbial characterization and simulations using the modified ADM1 model supported each other.

关 键 词：ADM1 anaerobic digestion METHANE multiple substrates microbial communities 

分 类 号：X70[环境科学与工程—环境工程]