摘要
以校园餐厨垃圾为原料,分析测定了早餐、午餐和晚餐餐厨垃圾的总固体(TS)、挥发性固体(VS)、碳水化合物、蛋白质、脂肪含量以及无机盐离子浓度,并通过批式厌氧发酵试验对3种餐厨垃圾的厌氧消化性能进行了对比研究。结果表明,早餐餐厨垃圾特性与午餐/晚餐餐厨垃圾差异较大,Na+,Ca2+和Cl-含量高于后两者。餐厨垃圾不同特性对其厌氧消化产气及有机物去除率都有一定影响,早餐、午餐和晚餐餐厨垃圾的累积甲烷产量分别为212.2,331.6和362.4 ml/g,早餐餐厨垃圾产气量比午餐和晚餐餐厨垃圾分别低36%和41.4%,其中Cl-含量高可能是造成其产气量低的主要原因。
The characteristics of wastes from breakfast, lunch and dinner were investigated and determined, including total solids （TS）, volatile solids （VS）, carbohydrate, protein, lipids, and inorganic salt concentrations. The digestibility of three kinds of kitchen wastes were tested in batch anaerobic digesters. The results showed that there were large differences between breakfast waste and lunch/dinner wastes, especially, the Na^＋, Ca^2＋ and Cl- contents in breakfast waste is higher than the other two. It was found that the characteristics of kitchen wastes influenced the biogas production performance and organic matter removal. The accumulative methane yield of breakfast waste, lunch waste and dinner waste were 212.2, 331.6 and 362.4 ml/g VS, respectively. The biogas production from breakfast waste was 36% and 41.4% lower than lunch waste and dinner waste, respectively, which probably resulted from the high Cl- content in breakfast waste.
出处
《可再生能源》
CAS
北大核心
2010年第1期76-80,共5页
Renewable Energy Resources
基金
国家高技术研究发展计划(2008AA062401)
关键词
餐厨垃圾
厌氧消化
生物气
kitchen waste
anaerobic digestion
biogas
