摘要
有效贮存新鲜水稻秸秆,确保沼气工程周年运行的原料供应,对于水稻秸秆厌氧发酵能源化利用技术持续健康发展极为重要。本研究以新鲜水稻秸秆及青贮后的水稻秸秆为原料,研究了其在室内中温[(37±2)℃]条件下厌氧发酵产沼气特性。结果表明,水稻秸秆经青贮30 d后,秸秆p H降低至4.02,纤维素与总碳含量分别降低了6.39%和8.40%,均达显著水平。厌氧发酵30 d,青贮水稻秸秆产气量(3 370 ml)比新鲜秸秆(2 754 ml)显著提高22.36%。表明:青贮作为一项新鲜稻秸贮存与预处理方法,技术上是可行的,可确保沼气工程周年运行的原料供应。
It is important to conserve fresh rice straw effectively for sustainable resource supply for year-round biogas production. In this study,experiments were carried out evaluate the impacts of ensiling pretreatment on biogas production of rice straw at medium temperature [（ 37±2） ℃]. Results showed that,after 30 d ensiling,p H value of the rice straw significantly dropped to 4. 02,cellulose content was significantly decreased by 6. 39% and total carbon content was decreased by 8. 40%,compared with un-ensiled rice straw. The anaerobically digested ensiled rice straw produced 3 370 ml biogas,22. 36% greater than fresh rice straw. Ensiling is technically feasible as a conservation and pretreatment measure for fresh rice straw biogas production.
出处
《江苏农业学报》
CSCD
北大核心
2016年第1期90-96,共7页
Jiangsu Journal of Agricultural Sciences
基金
江苏省农业科技自主创新基金项目[CX(12)1102-4]
关键词
水稻秸秆
青贮
预处理
厌氧发酵
rice straw
ensiling
pretreatment
anaerobic digestion
作者简介
付广青（1984-），女，河北石家庄人，硕士，助理研究员，主要从事农业废弃物资源化研究。（E-mail）fu_guangqing@126．com
通讯作者：叶小梅，（E-mail）yexiaomei610@126．com
