马宗虎;傅国志;叶骏;田立;冯小清;

• 1:中国华电工程(集团)有限公司

摘要(Abstract)：

[目的]研究油脂浓度对餐厨废弃物厌氧消化特性的影响。[方法]在中温条件下,采用批式试验研究了不同油脂浓度(15%、20%、25%、30%和35%TS)对餐厨垃圾中温厌氧消化过程中甲烷日产气量、累积产气量及发酵液中p H、氨氮、碳酸氢盐碱度和总有机酸的变化规律。[结果]油脂浓度为25%TS时,餐厨垃圾的累积甲烷产量最高,为606.0 m L/g VS;发酵液中总有机酸和碳酸氢盐碱度(VFA/TIC)均小于0.4,维持了较强的缓冲能力。动力学模型参数表明,油脂浓度越高,餐厨垃圾厌氧消化启动阶段的延滞期越长,油脂浓度为35%TS时的延滞期比35%TS时的延滞期延长了4.4 d。[结论]油脂浓度为25%TS时,获得最大甲烷产量(606 m L/g VS)。

关键词(KeyWords)： 厌氧消化;餐厨垃圾;油脂浓度;动力学

Abstract:

Keywords:

基金项目(Foundation): “十二五”国家科技支撑计划课题“餐厨废弃物干法发酵制备生物质燃气及并网发电技术及应用”(2012BAC25B05)

作者(Author): 马宗虎;傅国志;叶骏;田立;冯小清;

Email:

DOI: 10.13989/j.cnki.0517-6611.2016.03.066

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