提高玉米秸秆厌氧消化产气能力的预处理技术研究进展  

Recent Progress in Study on Technology for Pretreating Corn Stalk to Improve Biogas Production Capacity of Anaerobic Digestors

作　　者：赵晨[1] 崔馨月[2] 刘广青[1] 张瑞红[1] 陈畅[1] 

机构地区：[1]北京化工大学生物质能源与环境工程研究中心,北京100029 [2]中国人民大学农业与农村发展学院,北京100872

出　　处：《生态与农村环境学报》2015年第5期640-646,共7页Journal of Ecology and Rural Environment

基　　金：国家高技术研究发展计划(2012AA101803)

摘　　要：我国农作物秸秆年产量居世界之首,其中玉米秸秆分布最广,产量最高。厌氧消化产沼气是利用作物秸秆的有效手段,但玉米秸秆自身木质纤维素紧密的结构会导致产气周期长以及产气量和生物降解率偏低等问题。因此,需要对玉米秸秆进行预处理以破坏其原有结构,提高玉米秸秆的可生物利用性。综述了目前国内外包括物理法、生物法和化学法等玉米秸秆预处理技术的最新研究进展,并对其进行比较,为玉米秸秆厌氧消化产沼气预处理方式的选择提供参考。China has the largest annual output of crop residues in the world, of which corn stalk makes the biggest propor?tion and distributes the most extensively in the country. Anaerobic digestion for biogas production is an effective method to utilize corn stalk. However, the compact structure of lignocellulose of the corn stalk per se may cause a series of problems in biogas production, such as low biogas yield, low methane content, low biodegradability and long fermentation process. Therefore, it is necessary to have corn stalk pretreated to break its original structure and improve its biodegradability. A comprehensive review was conducted of recent progresses in the researches on technologies for pretreating corn stalk for biogas production, including physical, biological, and chemical approaches, for comparison. It is expected that the review may provide some references for selection of a proper corn stalk pretreatment method to improve biogas yield.

关 键 词：玉米秸秆 预处理 木质纤维素 厌氧消化 产气能力 

分 类 号：X712[环境科学与工程—环境工程]