| Related citation: | Yujing Guan,Yange Yu,Zhiqiang Hou,Fangze Shang,Guangli Cao,Ping Yang.Modeling of Biomethane Production from Multiple Organic Wastes based on Modified ADM1[J].Journal of Harbin Institute Of Technology(New Series),2025,32(2):1-13.DOI:10.11916/j.issn.1005-9113.24050. |
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| Author Name | Affiliation | | Yujing Guan | National Local Joint Engineering Research Center for Biomass Energy Development and Utilization, School of Environment, Harbin Institute of Technology,Harbin 150090, China | | Yange Yu | Power China Eco-Environment Group Co., Ltd., Shenzhen 518101,China | | Zhiqiang Hou | Power China Eco-Environment Group Co., Ltd., Shenzhen 518101,China | | Fangze Shang | Power China Eco-Environment Group Co., Ltd., Shenzhen 518101,China | | Guangli Cao | National Local Joint Engineering Research Center for Biomass Energy Development and Utilization, School of Environment, Harbin Institute of Technology,Harbin 150090, China | | Ping Yang | Power China Eco-Environment Group Co., Ltd., Shenzhen 518101,China |
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| Abstract: |
| 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. |
| Key words: ADM1 anaerobic digestion Methane multiple substrates microbial communities |
| DOI：10.11916/j.issn.1005-9113.24050 |
| Clc Number:X70 |
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