崔 超，姚大伟，郝 姗，张荣兵，张志渊，李 鹏，靳思岩，刘只欣，程晓菁
[1]崔超,姚大伟,郝姗,等.基于高级厌氧消化耦合沼气发电的污泥处理低碳运行实践[J].中国给水排水,2026,42(6):115-120.
CUIChao,YAODawei,HAOShan,et al.Low-carbon Operation Practice of Sludge Treatment Based on Advanced Anaerobic Digestion Coupled with Biogas Power Generation[J].China Water & Wastewater,2026,42(6):115-120.
基于高级厌氧消化耦合沼气发电的污泥处理低碳运行实践
- Title:
- Low-carbon Operation Practice of Sludge Treatment Based on Advanced Anaerobic Digestion Coupled with Biogas Power Generation
- 作者:
- 崔超， 姚大伟， 郝姗， 张荣兵， 张志渊， 李鹏， 靳思岩， 刘只欣， 程晓菁
- （北京城市排水集团有限责任公司，北京 100044）
- Author(s):
- CUI Chao， YAO Dawei， HAO Shan， ZHANG Rongbing， ZHANG Zhiyuan， LI Peng， JIN Siyan， LIU Zhixin， CHENG Xiaojing
- （Beijing Drainage Group Co. Ltd.， Beijing 100044， China）
- Keywords:
- sludge treatment; advanced anaerobic digestion; biogas power generation; low? carbon operation
- 摘要:
- 北京中心城区X再生水厂污泥处理中心采用高级厌氧消化耦合沼气发电工艺，2024年处理80%含水率污泥39.87万t（1 092 t/d），年均负荷率为80.4%。3月— 6月高负荷运转，平均负荷率为84.7%。沼气产量与污泥处理负荷、有机物含量密切相关，所处理污泥年均有机物含量为64.1%，年产沼气量为2 135.9万m3，沼气产率为267.9 m3/tDS。沼气主要用于沼气锅炉和发电，两种方式分别占43%、51%，逐步实现沼气100%资源化利用。通过高效运行沼气耗用单元，热水解年均蒸汽耗用量为0.87 t/tDS，沼气锅炉年均沼气耗用量为106.5 m3/tDS。全年沼气发电量为2 689.7万 kW·h，电单耗年均为277 kW·h/tDS，自发电量可100%覆盖泥区生产用电量，减少外购电能、蒸汽合计减排CO2约3.74万t，社会效益、环境效益、经济效益显著。实际生产中应加强热水解高效运行、消化池沼气提产、沼气利用策略优化，提高产气、科学配气能力，提升绿色电能自给率，最大化实现低碳运行。
- Abstract:
- Based on the advanced anaerobic digestion coupled with biogas power generation, the low-carbon operation analysis of the sludge treatment center of X reclaimed water plant in central area of Beijing showed that treatment of sludge with 80% moisture content was 398 700 t(1 092 t/d), and the average annual load rate was 80.4% in 2024. High load rate operation was maintained from March to June, with an average load of 84.7%. Biogas production was closely correlated with sludge treatment load and organic matter content, with an average annual organic pollution content of 64.1%, an annual biogas output of 2.135 9×107 m3 and a dry biogas yield of 267.9 m3/tDS. Biogas was mainly used in biogas boilers and biogas power generation, accounting for 43% and 51% respectively，and gradually realized 100% resource utilization. Though efficient operation of biogas consumption unit, the annual consumption of steam in thermal hydrolysis was 0.87 t/tDS, and the annual consumption of biogas boiler was 106.5 m3/tDS. The annual biogas power generation was 2.689 7×107 kW·h, and the annual electricity consumption was 277 kW·h/tDS. Self-generated electricity could cover 100% of the electricity consumption of sludge treatment production, and at the same time, the cumulative reduction of purchased electric energy and steam could reduce CO2 emission by about 37 400 t, with remarkable social, environmental and economic benefits. Production should strengthen the efficient operation of thermal hydrolysis, increase biogas production in digester and optimize biogas utilization strategy, optimize gas production and scientific gas distribution, improve the self-sufficiency rate of electric energy, and maximize the low-carbon production and operation of sewage treatment plant.
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