期刊论文

Assessment of biomethane production from cured tobacco leaves using steam explosion pretreatment

Li, C.

中文

农业环境科学学报

1672-2043

2020

39

8

1854-1861

10.11654/jaes.2020-0310

湖南省“湖湘青年英才”计划项目(2018RS3114) 湖南省重点领域研发计划项目(2019NK2032) 长沙市科技计划项目(长科发[2019]68号-khl1902215)。

本校为第一机构

为资源化利用涉烟有机废弃物,以废弃烤后烟叶为底物进行了中温厌氧发酵实验,通过对比研究蒸汽爆破预处理及5种汽爆条件对烤后烟叶产甲烷潜力的影响,探讨汽爆在烤后烟叶厌氧发酵中应用的可行性。结果表明:未处理烤后烟叶L0的生化产甲烷潜力值高于绝大多数木质纤维素类废弃物,达到了252.7 mL·g~(-1) VS,且产气周期短,是优良的发酵原料;烤后烟叶在汽爆过程中发生固液组分分离,液体糖难以完全回收进而影响产气。与L0相比,汽爆后烟叶的生化产甲烷潜力均有下降,L1~L5分别降低了11.6%、23.0%、24.0%、22.4%及26.3%。对于烤后烟叶,尽管汽爆预处理能打开物料结构,但也会导致液体糖分大量流失,甲烷产量下...

For utilizing organic waste of tobacco, discarded and cured tobacco leaves were subjected to medium-temperature anaerobic fermentation with steam explosion pretreatment. By comparing the biochemical methane potential（BMP）of cured tobacco in five different steam explosion gradients, the feasibility of steam explosion in cured tobacco anaerobic applications is discussed. The results show that the BMP value of untreated cured tobacco leaves（L0）is the highest, reaching 252.7 mL·g-1 VS, which is higher than most lignocellulosic wastes. Moreover...