蔬菜废物厌氧消化的适宜性及产气性能分析  

Analysis of Appropriation and Performance of Vegetable Waste Anaerobic Digestion

作　　者：刘研萍[1] 刘新春[2] 陈雪[1] 方刚[1] 毛毛菁 周祺[1] 夏瑜[1] 李秀金[1] 

机构地区：[1]北京化工大学环境科学与工程系,北京100029 [2]中国科学院研究生院资源与环境学院,北京100049

出　　处：《环境科学与技术》2010年第S2期153-156,共4页Environmental Science & Technology

基　　金：国家863计划重点项目(2008AA062401;2008AA062402);国家科技支撑计划(2007BAD87B12-3A)

摘　　要：中温35℃条件下,对蔬菜废物进行单相半连续式厌氧消化试验。通过测定产气率、甲烷含量及出料消化液的pH、ORP、碱度、VFA,研究不同有机负荷率(OLR=1.0,1.5,1.75gVS/L.d)下的蔬菜废物厌氧消化性能。研究表明,随着负荷率的增加,产气率分别提高了8.2%和1.7%,甲烷含量为51%~55%,pH稳定在7.1~7.3,碱度在5300~6200mg CaCO3之间,发酵类型为乙醇型发酵。Anaerobic digestion of vegetable waste processing was conducted in semi-continuous mode at 35℃.Along with the increase of organic loading rate(OLR) from 1.0~1.75 gVS/L,the biogas yield based on VS fed increased 8.2% and 1.7% respectively,and CH4 content in biogas was between 51% and 55%.With pH fluctuated in rang of 7.1~7.3,ORP maintained in-320^-340mV.The result could be used for vegetable waste processing.

关 键 词：蔬菜废物 厌氧消化 沼气 

分 类 号：X705[环境科学与工程—环境工程]