温度及进料量异常对餐厨垃圾厌氧发酵的影响及缓解对策研究OA
Impact and Mitigation Strategies Investigation into the Temperature and Feed Loading Anomalies on Food Waste Anaerobic Digestion
温度和进料量是餐厨垃圾厌氧工程常会出现季节性波动的因素,深度认识其内在影响机理并探索有效缓解措施,对于工程维稳和技术改进有极大帮助.该研究基于南昌市某工程现场运行情况,采用CSTR反应器分别开展了高温和高进料量下的失稳和复稳研究.结果表明,两种工况会通过形成氨抑制和酸抑制导致体系失稳,但是抑制形成路径存在差异.其中,可将CH4和CO2作为主要指标,容积产气率、挥发性脂肪酸、固体降解率等作为次要指标判断失稳原因.反应器彻底失稳后,分别对高温和高进料量两种工况辅以间歇负压和添加外源污泥,可以有效缓解异常现象并恢复至正常产气水平.研究结果可为餐厨垃圾厌氧工程项目日常运行过程中的维稳和管理提供理论参考.
Temperature and feed loading are seasonal fluctuating factors in food waste anaerobic digestion engineering.A profound understanding of their intrinsic mechanisms and exploration of effective mitigation strategies is highly beneficial for engineering stability and technological improvement.Based on the operational data of a project in Nanchang,this study conducted destabilization and stabilization experiments under high-temperature and high-feed-loading conditions using a CSTR reactor.The results indicate that both scenarios lead to destabilization through ammonia and acid inhibition,albeit via distinct pathways.Primary indicators such as CH4 and CO2 combined with secondary indicators such as volumetric gas yield,volatile fatty acids and solid degradation rate can diagnose destabilization.After destabilization,intermittent negative pressure for high-temperature and exogenous sludge addition for high-feed-loading effectively mitigated anomalies and re-stored normal operation.The findings provide theoretical guidance for stabilizing and managing food waste anaerobic diges-tion projects during routine operations.
熊威;邵鹏辉;向书玉;郭卫;邵敏;罗星星;邓丁元;汪燕铭;胡建伟;万厉谦;熊贞晟
江西洪城环境股份有限公司,江西南昌 330000南昌航空大学环境与化学工程学院,江西南昌 330063南昌航空大学环境与化学工程学院,江西南昌 330063江西洪城环境股份有限公司,江西南昌 330000江西洪源环境发展有限公司,江西南昌 330006江西洪源环境发展有限公司,江西南昌 330006江西洪源环境发展有限公司,江西南昌 330006江西洪城环境股份有限公司,江西南昌 330000江西洪城环境股份有限公司,江西南昌 330000江西洪城环境股份有限公司,江西南昌 330000南昌航空大学环境与化学工程学院,江西南昌 330063
农业科技
餐厨垃圾厌氧发酵温度进料量
food wasteanaerobic digestiontemperaturefeed loading
《中国沼气》 2026 (2)
37-45,9
南昌航空大学企业单位委托科技项目(HK202402150)
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