TANGJing,YANGJia-hao,LIWei-tan,et al.Correction of Key Parameters for Methane Production and Calculation of Carbon Emission in Anaerobic Digestion[J].China Water & Wastewater,2024,40(21):95-101.
Correction of Key Parameters for Methane Production and Calculation of Carbon Emission in Anaerobic Digestion
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第21期
Page:
95-101
Column:
Date of publication:
2024-11-01
- Keywords:
- anaerobic digestion model; parameter correction; predicted methane production; biogas power generation; biogas boiler
- Abstract:
- Utilizing the operational data from a municipal wastewater treatment plant in northern China, with a capacity of 40×104 m3/d, the non-biodegradable COD component ( fPS’up) in the sludge was measured and corrected based on Sotemann sludge anaerobic digestion steady-state model, resulting in a revised value of 0.42. This methodology was subsequently applied to the sludge anaerobic digestion steady-state model to predict methane production during the anaerobic digestion process in the wastewater treatment plant. When the treatment capacity of the thickening tank reached 1 240 m3/d, the methane production could attain 14 248 m3/d. A scenario analysis was conducted to evaluate two utilization options: biogas power generation and biogas boiler systems. The carbon offset of the biogas power generation system with waste heat recovery was calculated at 73 929 kg/d (calculated in terms of CO2), which represented a 73% increase compared to that of the biogas boiler.
Last Update:
2024-11-01