Interactive effects of carbohydrate, lipid, protein composition and carbon/nitrogen ratio on biogas production of different food wastes

被引：67
作者：
Xue, Shengrong [1 ,2 ]
Wang, Yanbo [1 ,2 ]
Lyu, Xingang [3 ]
Zhao, Nan [1 ,2 ]
Song, Jinghui [1 ,2 ]
Wang, Xiaojiao [1 ,2 ]
Yang, Gaihe [1 ,2 ]
机构：
[1] Northwest A&F Univ, Coll Agron, Yangling 712100, Shaanxi, Peoples R China
[2] Shaanxi Engn Res Ctr Circular Agr, Yangling 712100, Shaanxi, Peoples R China
[3] Northwest Univ, Coll Food Sci & Technol, Xian 710069, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2020年 / 312卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Food waste; Anaerobic digestion; LCP composition; Carbon/nitrogen ratio; Interactive effects; ANAEROBIC CO-DIGESTION; FEEDING COMPOSITION; METHANE PRODUCTION; MANURE; ACHIEVEMENTS; PARAMETERS; SLUDGE; STRAW; DAIRY;
D O I：
10.1016/j.biortech.2020.123566
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The anaerobic co-digestion (AcoD) of FWs produces variable methane yields, mainly due to variable carbon/ nitrogen (C/N) ratio and proportions of lipids (L), carbohydrates (C), and proteins (P) in different FW samples. In this study, a significant interaction between C/N ratio and LCP composition was found and contributed to the differing trends between special (SMP) and theoretical methane production. The highest SMP of 595 mL CH 4 gVS(-1) occurred at C/N of 25 and LCP of 63.25:22.62:14.13, followed by 592 mL CH 4 gVS(-1) at C/N of 30 and LCP of 48.94:39.74:11.32, which also reflected their interaction. Attributing to their interactive effect on ob-taining optimal process parameters and microbial community, the inhibition threshold of lipid as well as the methane yield was increased. Understanding the interaction between C/N ratio and LCP composition is an effective and promising way to obtain suitable mixture ratios of organic wastes under AcoD.
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页数：9
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