氨化预处理对生物质秸秆厌氧发酵的影响  

the effects of ammoniation pretreatment on anaerobic fermentation of the Biomass straw

作　　者：马兴元[1] 刘琪 马君[1] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021 [2]陕西省农产品加工技术研究院,陕西西安710021

出　　处：《生态环境学报》2011年第10期1503-1506,共4页Ecology and Environmental Sciences

基　　金：陕西省科技厅工业公关项目(2011K08-05);陕西省教育厅专项科研计划项(2010JK447);陕西省农产品加工技术研究院项目(NYY-090203);咸阳市科技计划项目(XK0909-9);陕西科技大学研究生创新基金

摘　　要：为探明氨化预处理对小麦秸秆干式厌氧发酵产气量影响的内在原因,采用傅立叶变换红外光谱(FTIR)、扫描电子显微镜(SEM)、视频光学接触角测定仪(GBX)、热重分析(TGA)等方法,对氨化处理前后小麦秸秆中纤维结构的变化进行了多方面研究。结果表明,氨化预处理使小麦秸秆纤维部分官能团发生断裂,表层的亲水性增加,秸秆的热稳定性提高,并且氨化作用对纤维结构的破坏,有利于厌氧微生物接触到更多的可发酵物质,提高了秸秆的利用率,也表明小麦秸秆纤维结构的变化是厌氧发酵产气量提高的主要原因。The Fourier transform infrared spectroscopy（FTIR）,scanning electron microscopy（SEM）,video optical contact Angle locator（GBX）,thermogravimetric analysis（TGA） and other methods was used to find out the internal effect of ammoniation pretreatment on dry anaerobic fermentation gas production of wheat straw stalk.After doing researches on the changes of wheat straw stalk fiber structure before and after ammoniation pretreatment,the results show that some functional groups of wheat straw stalk fiber were broken,the surface hyfrophilism was increasing and the thermostability was growing up after ammoniation pretreatment,meanwhile,the utilization factor of wheat straw stalk was improved after breaking the structure of fiber and supplying more fermentable material.It also indicates that the changes of wheat straw fiber structure is the internal causes of changes of anaerobic fermentation gas production.

关 键 词：生物质秸秆 预处理 氨化 发酵 

分 类 号：X71[环境科学与工程—环境工程]