[1]唐婧,杨佳豪,李威潭,等.厌氧消化产甲烷量关键参数修正及碳排放计算[J].中国给水排水,2024,40(21):95-101.
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.
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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.
厌氧消化产甲烷量关键参数修正及碳排放计算
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第40卷
期数:
2024年第21期
页码:
95-101
栏目:
出版日期:
2024-11-01
- Title:
- Correction of Key Parameters for Methane Production and Calculation of Carbon Emission in Anaerobic Digestion
- Keywords:
- anaerobic digestion model; parameter correction; predicted methane production; biogas power generation; biogas boiler
- 摘要:
- 根据北方地区某处理量为40×104 m3/d的市政污水处理厂实际运行数据,对Sotemann污泥厌氧消化稳态模型污泥中的不可生物降解COD组分( fPS’up)进行实测修正,获得修正的fPS’up=0.42,将其应用于污泥厌氧消化稳态模型进而预测污水厂污泥厌氧消化工艺的甲烷产量。在浓缩池出泥量为1 240 m3/d的条件下,甲烷产量可达14 248 m3/d。采用情景分析法对沼气发电和沼气锅炉两种利用情景进行对比,有余热回收的沼气发电系统碳补偿量为73 929 kg/d(以CO2计),比沼气锅炉增加73%。
- 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.
更新日期/Last Update:
2024-11-01