可再生能源2013，Vol.31Issue(1)：66-70,5.
超声波预处理对秸秆发酵的影响
The effect of ultrasound pretreatment on straw fermentation
摘要
Abstract
The anaerobic straw digestion experiments were carried out by different ultrasonic power and time pretreatment under 37 ℃ for 50 d. Gas production rate, pH value, CH4 content in fermentation process were analyzed, and the straw microstructure was analyzed by the scanning electron microscopy (SEM) to study the efficiency of ultrasonic pretreatment on straw microstructure and gas production rate.The results showed: ultrasonic pretreatment can improve the gas production rate and accumulative gas production of straw fermentation, the gas production rate was improved from 4.54 ml/(g·d) to 6.86 ml/(g·d) increased 51.10%;Ultrasonic pretreatment has no significant influence on pH;the content of methane in biogas increased from 43.83% to 47.86%;the optimal ultrasonic pretreatment condition is ultrasonic power 225 W,pretreatment time 30 min.关键词
秸秆/超声波/预处理/发酵Key words
straw/ ultrasound/ pretreatment/ fermentation分类
能源科技引用本文复制引用
冯磊,陈岩,李润东..超声波预处理对秸秆发酵的影响[J].可再生能源,2013,31(1):66-70,5.基金项目
国家"973"重点基础研究规划项目(2011CB201500) （2011CB201500）
沈阳市科技计划项目(F10-133-6-00). （F10-133-6-00）
