废弃木耳菌棒的好氧水解特性  

Study on aerobic hydrolysis characteristic of the agaric cultivation waste

作　　者：李文哲[1] 宋欣悦 张基因 罗立娜[1] 殷丽丽[1] Li Wenzhe SONG Xinyue ZHANG Jiyin LUO Lina YIN Lili(School of Engineering, Northeast Agricultural University, Harbin 150030, China)

机构地区：[1]东北农业大学工程学院,哈尔滨150030

出　　处：《东北农业大学学报》2017年第7期72-82,共11页Journal of Northeast Agricultural University

基　　金：国家科技支撑计划项目(2015BAD21B03);中国博士后科学基金项目(2016M601405)

摘　　要：为分析废弃木耳菌棒好氧水解特性,在总固体浓度为10%,温度为34、38、44℃,时间为4、8、12、16、20、24 h条件下作水解发酵试验。结果表明,温度为44℃,好氧水解时间8 h时,木质素降解速率最快,降解率高达19.91%,占总降解率67.05%。在此条件下,厌氧发酵废弃木耳菌棒VS产气率较直接厌氧发酵对照组提高13.16%。表明好氧水解可有效提高木质素降解率,提高产气率。In order to investigate aerobic hydrolysis characteristic of the agaric cultivation waste, agaric residue was used as raw material for hydrolysis and fermentation with 10% TS mass fraction. The experiments were carded out individually at 34, 38, 44 ℃ with 4, 8, 12, 16, 20, 24 h. The results showed that aerobic hydrolysis of agaric cultivation waste whose time was 8h and temperature was 44 ℃ had the highest degradation rate of lignin of 19.91%, which accounted for 67.05% of the total degradation. Under the optimum conditions, VS gas production rate of agaric cultivation waste increased by 13.16% comparing with the direct anaerobic fermentation. The experimental results showed that with aerobic hydrolysis pretreatment lignin degradation rate and gas production rate of the agaric cultivation waste can be effectively improved.

关 键 词：废弃木耳菌棒 木质纤维素 好氧水解 

分 类 号：S216.3[农业科学—农业机械化工程] X712[农业科学—农业工程]