菌种驯化对废弃食用油脂中温厌氧消化的影响  

The Effect of Inoculums Domesticating on Mesothermal Anaerobic Digestion of Waste Cooking Oil

作　　者：贺静[1] 陈泾涛 李强[1] 李凛[2] 邓雅月 邓宇[1] 尹小波[1] 

机构地区：[1]农业部沼气科学研究所农业部农村可再生能源开发利用重点实验室,四川成都610041 [2]成都理工大学材化院生物工程系,四川成都610059

出　　处：《中国沼气》2015年第4期26-30,共5页China Biogas

基　　金：863计划(2013AA102805-02);公益性行业(农业)科研专项(201303099-01)

摘　　要：为了提高废弃食用油脂厌氧消化的效率,以厌氧消化污泥(S0)为初始接种物,经餐厨垃圾和油脂驯化获得了油脂驯化菌种(S1)。采用批式发酵实验考察了两种菌种的脂肪酶活性、比产甲烷活性和利用油脂产甲烷潜力,其结果为:S1>S0;利用S1作为接种物进行的废弃食用油脂连续厌氧消化实验,油脂的负荷为3.30 g·L-1d-1,油脂的平均沼气产率达到1.21 L·g-1。上述结果表明,通过驯化可以显著提高菌种对油脂的厌氧消化能力,并且驯化后菌种性能稳定,可以用于处理废弃食用油脂的连续厌氧消化工艺。Anaerobic digestion sludge （SO ） was domesticated by waste food and cooking oil in this study, and so obtained an inocu]ums （St）. The two inocula＇ s lipasc activity, specific methanogcnic activity （SMA）, and the methane production potential of raw material, were investigated. The results showed that the S1 was better than the S0. The waste cooking oil obtained an average biogas production rate of 1.21 L ·g^-1 when the Sl as inoculums and the raw material loading rate was 3.30 g ·L^-1d^-1 in the continuous anaerobic digestion. And so the domestication cotdd significantly improve the inoculum＇s digestion ability of waste cooking oil.

关 键 词：菌种 驯化 废弃食用油脂 厌氧消化 

分 类 号：X703[环境科学与工程—环境工程] S216.4[农业科学—农业机械化工程]