可再生能源2025，Vol.43Issue(11)：1435-1442,8.
乙酸在电催化厌氧消化中的降解动力学研究
Study on the degradation kinetics of acetic acid in electrocatalytic anaerobic digestion
摘要
Abstract
In electrocatalytic anaerobic digestion,the methane content in biogas can be enhanced.With acetic acid as the substrate,this study investigated the kinetics of biogas production and substrate degradation in an electrocatalytic anaerobic digestion system.Experimental results showed that with the addition of different initial acetic acid concentrations(8.3,10.0,11.7 g/L),the methane content in biogas increased with increasing acetic acid concentration.When the acetic acid concentration was 11.7 g/L,the average methane content reached 80.6%in batch experiments.Based on the carbon balance relationship in the electrocatalytic anaerobic digestion process,kinetic studies were conducted using both the first-order kinetic model and the Gompertz model.The study revealed that acetic acid conversion efficiencies at the three concentrations were 85.6%,97.2%,and 97.4%,with biomass growth accounting for 22.1%,29.9%,and 28.5%of the carbon distribution,respectively.The correlation coefficients(R2)for both models in fitting the biogas production process were greater than 0.99,and those for the acetic acid degradation process were above 0.90,with the first-order kinetic model demonstrating a better fit for acetic acid degradation.关键词
电催化厌氧消化/乙酸降解动力学/碳平衡/一级动力学/GompertzKey words
electrocatalytic anaerobic digestion/acetic acid degradation kinetics/carbon balance/first-order kinetic/Gompertz分类
能源科技引用本文复制引用
刘志男,蒋东云,周亶,康厚智,曾佳楷,陈荣斌..乙酸在电催化厌氧消化中的降解动力学研究[J].可再生能源,2025,43(11):1435-1442,8.基金项目
广西重点研发计划项目(桂科AB18221104). （桂科AB18221104）
