期刊
BIOCHEMICAL ENGINEERING JOURNAL
卷 130, 期 -, 页码 1-9出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.bej.2017.11.003
关键词
Anaerobic digestion; Food waste; Kinetic analysis; Process performance; Operational conditions
资金
- Fundamental Research Funds for the Central Universities [106112017CDJXY210006]
The correlations between kinetic parameters and both operational conditions and process performance during the anaerobic digestion of food waste were investigated. Substrate concentration (SC), biomass concentration (BC), and substrate-inoculum ratio (S/I) were selected as the operational conditions, while first-order and modified Gompertz models were introduced to evaluate digestion kinetics. The results indicated that no significant correlations between both hydrolysis and methanogenesis kinetic parameters (k and R-m) relative to the operational conditions and process parameters could be determined; however, k/R'(m) was observed to significantly correlate with these parameters. Specifically, substrate load (both SC and S/I) positively influenced k/R'(m) via its impact on volatile fatty acid (VFA) and pH, while BC reduced k/R'(m) by increasing the alkalinity of the system. Moreover, k/R'(m) was negatively correlated with process efficiency. The methane recovery rate exceeded 90% when 1.55 4.64 (p = 0.05). These findings provide a scientific foundation for predicting the behavior of anaerobic systems and optimizing the digestion process. (C) 2017 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据