Ethanol-type anaerobic digestion enhanced methanogenic performance by stimulating direct interspecies electron transfer and interspecies hydrogen transfer
文献类型： 外文期刊
作者： Zhang, Shuang 1 ; Ren, Yuanyuan 1 ; Zhao, Pan 1 ; Wang, Xiaona 1 ; Wang, Qunhui 1 ; Sun, Xiaohong 3 ;
作者机构： 1.Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Dept Environm Sci & Engn, Beijing 100083, Peoples R China
2.Univ Sci & Technol Beijing, Beijing Key Lab Resource oriented Treatment Ind Po, Beijing 100083, Peoples R China
3.Beijing Acad Agr & Forestry Sci, Beijing Agrobiotechnol Res Ctr, Beijing 100097, Peoples R China
关键词： Methane production; E-pili; Ethanol-type fermentation; Syntrophic metabolism; Hydrogenase genes
期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.7； 五年影响因子：9.4 ）
ISSN： 0960-8524
年卷期： 2024 年 410 卷
页码：
收录情况： SCI
摘要： Ethanol pre-fermentation of food waste effectively alleviates acidification; however, its effects on interspecies electron transfer remain unknown. This study configured the feed according to COD ratios of ethanol: sodium acetate: sodium propionate: sodium butyrate of 5:2:1.5:1.5 (ethanol-type anaerobic digestion) and 0:5:2.5:2.5 (control), and conducted semi-continuous anaerobic digestion (AD) experiments. The results showed that ethanol-type AD increased maximum tolerable organic loading rate (OLR) to 6.0 gCOD/L/d, and increased the methane production by 1.2-14.8 times compared to the control at OLRs of 1.0-5.0 gCOD/L/d. The abundance of the pilA gene, which was associated with direct interspecies electron transfer (DIET), increased by 5.6 times during ethanol-type AD. Hydrogenase genes related to interspecies hydrogen transfer (IHT), including hydA-B, hoxH-Y, hnd, ech, and ehb, were upregulated during ethanol-type AD. Ethanol-type AD improved methanogenic performance and enhanced microbial metabolism by stimulating DIET and IHT.
- 相关文献
作者其他论文 更多>>
-
Metabolic mechanism of thermal pretreatment combined with ethanol pre-fermentation to enhance anaerobic digestion of food waste: A comprehensive analysis of key enzyme-encoding genes
作者：Zhang, Shuang;Zhao, Pan;Gao, Ming;Wu, Chuanfu;Wang, Qunhui;Gao, Ming;Wu, Chuanfu;Wang, Qunhui;Sun, Xiaohong;Wang, Qunhui
关键词：Anaerobic fermentation; Pretreatment; Microbial community; Metabolic pathways; Enzyme-encoding genes
-
Effects of Environmental Hypoxia on Serum Hematological and Biochemical Parameters, Hypoxia-Inducible Factor (hif) Gene Expression and HIF Pathway in Hybrid Sturgeon (Acipenser schrenckii ♂ x Acipenser baerii ♀)
作者：Ren, Yuanyuan;Cheng, Bo;Ren, Yuanyuan;Tian, Yuan;Liu, Yang;Yu, Huanhuan
关键词：hypoxia; physiological response; hypoxia-induced factor; HIF pathway; hybrid sturgeon
-
Research progress for co-production ethanol and biobased products
作者：Li, Yongsheng;Sun, Haishu;Zhang, Yuanchun;Wang, Xiaona;Gao, Ming;Wang, Qunhui;Sun, Xiaohong;Gao, Ming;Wang, Qunhui
关键词：Ethanol; Co-production; Biobased chemicals; Bioenergy; Microbial fermentation
-
Optimizing ethanol pre-fermentation of food waste to enhance batch anaerobic digestion: Regulation of the acidification pathway
作者：Zhang, Shuang;Zhao, Pan;Wu, Chuanfu;Gao, Ming;Wang, Qunhui;Wu, Chuanfu;Gao, Ming;Wang, Qunhui;Sun, Xiaohong;Wang, Qunhui
关键词：Anaerobic fermentation; Microbial community; Acidogenesis; Acetogenesis; Methanogenesis
-
Impact of biochar on ammonia emission mitigation and enhanced humification in the bio-drying process of food waste digestate
作者：Xu, Mingyue;Wang, Xiaona;Chen, Enmiao;Sun, Haishu;Li, Yongsheng;Wang, Qunhui;Wang, Qunhui;Sun, Xiaohong;Xu, Mingyue
关键词：Food waste digestate; Bio-drying; Biochar; Bacterial community
-
Synthesis of Poly(Lactic Acid) from Ammonium Lactate Fermentation Broth of Food Waste
作者：Zhang, Bingxin;Guo, Yan;Gao, Ming;Wu, Chuanfu;Wang, Xiaona;Wang, Qunhui;Sun, Xiaohong
关键词：Food waste; Ammonium lactate fermentation broth; Stannous chloride modified resin; Butyl lactate; Lactide; Poly(lactic acid)
-
Spiral valve intestinal barrier functions of juvenile Siberian sturgeon (Acipenser baerii) were changed by low or high-lipid diet
作者：Yu, Huanhuan;Li, Tieliang;Xu, Guanling;Xing, Wei;Jiang, Na;Ma, Zhihong;Li, Wentong;Luo, Lin;Li, Yue;Ren, Yuanyuan;Liu, Yan
关键词：Acipenser baerii; Spiral valve; Intestinal microbiota; Immune; Antioxidant; Tight junction
