秸秆预处理技术存在的问题与发展前景

Problem and Prospect of Pretreatment of Straw

由于世界经济对能源的巨大需求,而传统的不可再生的石化能源已无法满足供应,人们的目光开始聚集到新能源领域。其中使用厌氧发酵技术处理农业有机废弃物,正在受到越来越多的关注。但是实践应用并不理想,这涉及诸多因素,其中秸秆含有大量难降解的木质素和纤维素,难于直接被厌氧微生物利用是首先要解决的问题。秸秆预处理是提高秸秆原料利用率,加大产气量,缩短启动时间的有效手段。

Attentions paid to new energy domain since the traditional non-renewable petrochemical energy is unable to satisfy the energy demand as a result of rapid economical development. Although anaerobic fermentation technology used to deal with agriculture organic waste is attracting more and more attentions, the practical application is not ideal. Since straws slowly decompose in nature which resulted from both a high content of recalcitrant lignin and cellulose in particular, the pretreatment of straw is an effective measure that can raise the utilization rate of raw material, increase yield of biogas and reduce the start-up time.