摘要
污泥的厌氧消化技术是实现污泥稳定化、资源化、无害化的重要途径,然而污泥的单独厌氧消化技术存在一些弊端,如有机质转化效率低、停留时间长、沼气产量低等,将污泥与餐厨垃圾联合厌氧消化则可以提高厌氧消化的效率,增强系统稳定性与产气性能。介绍了污泥与餐厨垃圾联合厌氧消化的协同效应,重点阐述了碳氮比(C/N)、有机负荷率、温度、p H值等因素对污泥与餐厨垃圾联合厌氧消化的影响,并对污泥与餐厨垃圾联合厌氧消化技术的研究及应用进行了展望。
Anaerobic digestion of sewage sludge is an key way to realize sludge stabilization, resource recovery and harmlessness,but digestion of sludge as the sole substrate has some disadvantages itself,such as low efficiency of organic conversion,long retention time and low yield of methane. The co-digestion of sludge and food waste can improve the efficiency of anaerobic digestion,enhancing the stability of system as well as the biogas production. The synergistic effect of sludge and food waste co-digestion is illustrated in this paper,and the influence of impacting factors,i. e.,carbon to nitrogen ratio,organic loading rate,temperature and pH,on the performance of sludge and food waste co-digestion are discussed. Finally,the researches and application of anaerobic co-digestion of sludge and food waste are summarized.
出处
《环境工程》
CAS
CSCD
北大核心
2015年第9期100-104,共5页
Environmental Engineering
基金
国家自然科学基金(51408419)
国家水体污染控制与治理科技重大专项(2013ZX07315-001)
国际科技合作重点项目(2012DFG91380)
关键词
污水厂污泥
餐厨垃圾
联合厌氧消化
协同效应
制备甲烷
sewage sludge
food waste
anaerobic co-digestion
synergistic effect
methane production
