TY  - JOUR
AU  - Pham, Van Dinh
AU  - Pham, Van Toi
AU  - Hoang, Minh Giang
AU  - Chang, Ping Yu
PY  - 2026
DA  - 2026/07/01
TI  - Physicochemical Drivers of Methane Recovery and Techno-Economic Feasibility in Anaerobic Digestion of Organic-Rich Municipal Waste
JO  - Advances in Environmental and Engineering Research
SP  - 016
VL  - 07
IS  - 03
AB  - Anaerobic digestion (AD) has emerged as a promising pathway for recovering energy from organic-rich municipal solid waste (MSW), particularly in waste systems characterized by high biodegradable content and moisture levels. However, the relationships between waste physicochemical properties, methane recovery potential, and techno-economic feasibility remain insufficiently integrated in current research. This study developed a comparative framework combining empirical prediction (S1), stoichiometric estimation (S2), and laboratory-scale AD experiments (S3) to evaluate methane recovery and energy potential from biodegradable municipal solid waste (BMSW). The analyzed waste stream contained approximately 62% biodegradable material with high moisture content and favorable C/N and VS/TS ratios for AD. Methane yields predicted by S1 and S2 reached 347 and 505 mL-CH4/g-VS, respectively, whereas experimental digestion produced 334 mL-CH4/g-VS under mesophilic conditions. The lower experimental yield reflected operational limitations, including incomplete biodegradation and microbial inhibition at elevated loading rates. Net electricity recovery was estimated at approximately 184-289 kWh/ton of waste, while avoided greenhouse gas emissions reached up to 1.6 ton-CO2e/ton of waste. Capital investment analysis further indicated strong scale dependency, with larger facilities achieving substantially lower unit investment costs. Overall, the findings demonstrate that substrate physicochemical compatibility, rather than geographic context alone, governs AD performance and feasibility in organic-rich municipal waste systems.
SN  - 2766-6190
UR  - https://doi.org/10.21926/aeer.2603016
DO  - 10.21926/aeer.2603016
ID  - Pham2026
ER  -