Zero-Valent Iron and Activated Carbon Coupled to Enhance Anaerobic Digestion of Food Waste: Alleviating Acid Inhibition at High Loads
文献类型： 外文期刊
作者： Zhang, Shuang 1 ; Zhao, Pan 1 ; Gao, Ming 1 ; Wu, Chuanfu 1 ; Wang, Qunhui 1 ; Sun, Xiaohong 3 ;
作者机构： 1.Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Dept Environm Sci & Engn, 30 Xueyuan Rd, Beijing 100083, Peoples R China
2.Univ Sci & Technol Beijing, Beijing Key Lab Resource Oriented Treatment Ind Po, 30 Xueyuan Rd, Beijing 100083, Peoples R China
3.Beijing Acad Agr & Forestry Sci, Beijing Agrobiotechnol Res Ctr, Beijing 100097, Peoples R China
关键词： fermentation; methane production; acidification; acid accumulation
期刊名称：FERMENTATION-BASEL （ 影响因子：3.7； 五年影响因子：4.5 ）
ISSN：
年卷期： 2023 年 9 卷 9 期
页码：
收录情况： SCI
摘要： Anaerobic digestion (AD) has the advantages of utilizing complex substrates and producing renewable energy and is currently one of the mainstream technologies for food waste (FW) resourcing. However, at high organic loads and low inoculum-to-substrate ratios (ISRs), AD with FW as substrate is prone to acid accumulation, resulting in a drastic decrease in gas production and system collapse. This study investigated the effect of the coupled addition of zero-valent iron (ZVI) and activated carbon (AC) on the AD of FW at three low ISRs of 0.715, 0.625, and 0.5. The results showed that the control group acidified and stopped producing biogas when the ISR decreased to 0.625 and 0.5, but ZVI coupled with AC alleviated the acidification and increased the cumulative biogas yield. Especially at ISR = 0.5, the cumulative biogas yield for the ZVI + AC group was 31.5%, 99.5%, and 11.43 times higher than that of the ZVI, AC, and control groups, respectively. ZVI coupled with AC also increased the degradation of volatile fatty acids (70.5-84.4%) and soluble chemical oxygen demand (50.0-72.9%) while decreasing propionate concentration and improving the stability of the AD system. COD mass balance analyses indicated that the coupled addition of ZVI and AC promoted the conversion of particulate organic matter to soluble organic matter and increased the conversion of carbon sources to methane.
- 相关文献
作者其他论文 更多>>
-
Ethanol-type anaerobic digestion enhanced methanogenic performance by stimulating direct interspecies electron transfer and interspecies hydrogen transfer
作者：Zhang, Shuang;Ren, Yuanyuan;Zhao, Pan;Wang, Xiaona;Wang, Qunhui;Ren, Yuanyuan;Wang, Xiaona;Wang, Qunhui;Sun, Xiaohong
关键词：Methane production; E-pili; Ethanol-type fermentation; Syntrophic metabolism; Hydrogenase genes
-
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
-
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)
-
Fate of antibiotic resistance genes in cultivation substrate and its association with bacterial communities throughout commercial production of Agaricus bisporus
作者：Song, Shuang;Han, Meilin;Wang, Xuming;Wang, Shouxian;Qin, Wentao;Liu, Yu;Sun, Xiaohong;Qin, Wentao;Liu, Yu;Zhang, Yuduo;Liu, Yu;Sun, Xiaohong
关键词：Antibiotic resistance gene; Pasteurization; Agaricus bisporus; Mycelium proliferation; Bacterial community
