We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
蒸汽爆破/氧化钙联合预处理对水稻秸秆厌氧干发酵影响研究.
- Authors
王星; 李强; 周正; 贺静; 邓雅月; 张敏; 尹小波
- Abstract
In order to enhance the utilization of rice straw, the methods steam explosion (SE), calcium oxide (CaO) and combination of SE/CaO were used to pretreat rice straw, and the characteristic of rice straw and solid-state anaerobic digestion were also investigated. The results showed that the structure of rice straw was destroyed seriously, as while as the lignin content of rice straw decreased from 17.2% to 12.2% and the removal rate of lignin was 29.1% in the condition of SE/CaO pretreatment. The results of cellulose hydrolysis indicated that yield of glucose and xylose which pretreat by SE/CaO were 877.56 mg·L-1 and 400.85 mg·L-1, and were increased by 85.43% and 1 283.39% compared with the untreated samples. The solid-state anaerobic digestion experiment showed that the lag phase of samples pretreat by SE/CaO was 5 days which shorter 6 day than the untreated samples.The cumulative methane production in previous 30 days accounted 86.4% of total cumulative methane production in the condition of SE/CaO pretreatment, and the untreated was only 55.7%. The methane production potential of samples pretreat by SE/CaO was 0.24 L·g-1 VS which was the highest in three pretreatment, and increased 20.2% than the untreated. The fitting results of kinetic model indicated that SE/CaO pretreatment was the more suitable method to pretreat rice straw which compared with SE pretreatment and CaO pretreatment.
- Publication
Journal of Agro-Environment Science, 2017, Vol 36, Issue 2, p394
- ISSN
1672-2043
- Publication type
Article
- DOI
10.11654/jaes.2016-1387