化工进展2023，Vol.42Issue(12)：6666-6675,10.DOI:10.16085/j.issn.1000-6613.2023-0047
纤维素水热炭化液相与玉米秸秆混合发酵有机物转化与产气特性
Organic matter conversion and methane production characteristics during anaerobic co-digestion of corn stover and aqueous phase derived from cellulose hydrothermal carbonization
摘要
Abstract
In order to realize the harmless treatment and multi-stage utilization of biomass resources,this study aimed to explore the transformation process of organic matter and methane production characteristics during the anaerobic co-digestion of corn stover and aqueous phase derived from cellulose hydrothermal carbonization.The anaerobic co-digestion experiment of the two feedstocks was carried out.Compared with the mono-digestion,the addition of hydrothermal aqueous phase prepared at 200℃(hold on 30min,60min,120min)and 230℃(hold on 60min)increased the methane production by 7.32%,4.42%,22.08%and 21.76%,respectively,and the maximum accumulation of methane was 1387mL.The results showed that the prolongation of hydrothermal time and the increase of hydrothermal temperature had a positive effect on the final methane production.The inhibitors such as furan and its derivatives in the co-substrate did not have obvious negative effects on anaerobic co-digestion.While,it could be decomposed into furfuryl alcohol,etc.by microorganisms to promote methane production.The addition of hydrothermal carbonization aqueous phase promoted the growth of methanogens in the hydrogen reduction pathway of carbon dioxide,and promoted the production of methane in synergy with the methanogenic pathway of acetic acid.The results of this study could provide a theoretical basis for optimizing the anaerobic co-digestion process of corn stover and organic waste liquid of hydrothermal carbonization.关键词
混合发酵/水热炭化/液相/玉米秸秆/菌群结构Key words
anaerobic co-digestion/hydrothermal carbonization/aqueous phase/corn stover/microbial community分类
机械制造引用本文复制引用
王浩,邸璐,王芳,张德俐,易维明,李永军,沈秀丽..纤维素水热炭化液相与玉米秸秆混合发酵有机物转化与产气特性[J].化工进展,2023,42(12):6666-6675,10.基金项目
国家自然科学基金(52206265,52130610,52106258) （52206265,52130610,52106258）
山东省高等学校"青创科技支持计划"(2021KJ097) （2021KJ097）
山东省重点研发计划(2019GSF110017). （2019GSF110017）
