Alleviation of harmful effect in stillage reflux in food waste ethanol fermentation based on metabolic and side-product accumulation regulation

被引：6
作者：
Ma, Hongzhi [1 ,2 ]
Yang, Jian [1 ,2 ]
Jia, Yan [1 ,2 ]
Wang, Qunhui [1 ,2 ]
Ma, Xiaoyu [1 ,2 ]
Sonomoto, Kenji [3 ]
机构：
[1] Univ Sci & Technol Beijing, Dept Environm Engn, Beijing 100083, Peoples R China
[2] Beijing Key Lab Resource Oriented Treatment Ind P, Beijing, Peoples R China
[3] Kyushu Univ, Grad Sch Bioresource & Bioenvironm Sci, Dept Biosci & Biotechnol, Higashi Ku, 6-10-1 Hakozaki, Fukuoka 8128581, Japan
来源：
BIORESOURCE TECHNOLOGY | 2016年 / 218卷
基金：
对外科技合作项目（国际科技项目）;
关键词：
Food waste; Stillage reflux; Regulation methods; Ethanol fermentation; SACCHAROMYCES-CEREVISIAE STRAINS; LACTIC-ACID; SOLVENT PRODUCTIVITY; ACETIC-ACID; DEHYDROGENASE; BACTERIA; GLYCEROL; GROWTH; PH;
D O I：
10.1016/j.biortech.2016.06.123
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Stillage reflux fermentation in food waste ethanol fermentation could reduce sewage discharge but exert a harmful effect because of side-product accumulation. In this study, regulation methods based on metabolic regulation and side-product alleviation were conducted. Result demonstrated that controlling the proper oxidation-reduction potential value (-150 mV to -250 mV) could reduce the harmful effect, improve ethanol yield by 21%, and reduce fermentation time by 20%. The methods of adding calcium carbonate to adjust the accumulated lactic acid showed that ethanol yield increased by 17.3%, and fermentation time decreased by 20%. The accumulated glyceal also shows that these two methods can reduce the harmful effect. Fermentation time lasted for seven times without effect, and metabolic regulation had a better effect than side-product regulation. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：463 / 468
页数：6
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