摘要
为提高农作物秸秆的利用率,采用单因素试验研究1%有机硅(表面活性剂)浸泡处理对长度为1 mm、5 mm和20 mm水稻秸秆产甲烷潜力(BMP)和表面结构的影响。结果表明:经有机硅预处理后,1 mm、5 mm和20 mm水稻秸秆的BMP较同长度未经处理的分别提高53.00%、76.65%和10.73%,差异显著;处理后1 mm水稻秸秆的BMP较20 mm的提高13.67%,差异显著;水稻秸秆长度越小其水解速率越快;有机硅预处理后水稻秸秆的发酵迟滞期较未处理组延长;水稻秸秆表面蜡质晶体密度降低、乳突数量减少。
The effects of 1 mm,5 mm and 20 mm length of rice straw soaking in 1%organosilicon(surfactant)on biochemical methane potential(BMP)and surface structure of rice straw are studied by a single factor experiment to improve utilization efficiency of crop straw.Result:BMP from 1 mm,5 mm and 20 mm rice straw soaking in 1%organosilicon is 53.00%,76.65%and 10.73%higher than BMP from 1 mm,5 mm and 20 mm rice straw without any treatment significantly.BMP from 1 mm rice straw soaking in 1%organosilicon is 13.67%higher than BMP from 20 mm rice straw soaking in 1%organosilicon significantly.The shorter of rice straw is,the faster the hydrolysis rate is.The hysteresis period of rice straw fermentation after organosilicon pre-treatment is longer than the rice straw without any treatment.The waxy crystal density and papilla number in rice straw surface decrease after pre-treatment by organosilicon.
作者
王冰
刘科
雷云辉
韦秀丽
王妍
WANG Bing;LIU Ke;LEI Yunhui;WEI Xiuli;WANG Yan(Chongqing Academy of Agricultural Sciences,Chongqing 401329;Key Laboratory of Agricultural Waste Recycling Technology and Equipment R&D,Chongqing 401329;Key Laboratory of Development and Application of Rural Renewable Energy,Ministry of Agriculture,Chengdu,Sichuan 610041;Southern Scientific Observing and Experimental Station for Development and Utilization of Rural Renewable Energy,Ministry of Agriculture,Chongqing 401329,China)
出处
《贵州农业科学》
CAS
2020年第7期109-112,共4页
Guizhou Agricultural Sciences
基金
农业部农村可再生能源开发利用重点实验室开放课题基金资助项目“水稻秸秆预处理高效制沼气技术研究”(2017013)
重庆市技术创新与应用示范项目“乡村水冲厕所污染管控研究与资源化利用技术装备研发示范”(cstc2018jscx-zdyfxmX0009)
重庆市人力资源和社会保障局2018年留创计划创新类项目“微氧对农作物秸秆水解速率与BMP的影响及机理研究”(cx2018138)。
关键词
有机硅
表面活性剂
预处理
水稻秸秆
产甲烷潜力
organosilicon
surfactant
pre-treatment
rice straw
biochemical methane potential
