底物配比对两种蔬菜废叶厌氧发酵产沼气性能的研究
Effects of Substrate Ratio on Biogas Production from Waste Leaves of Two Vegetables by Anaerobic Fermentation
尚林 1李涛1
作者信息
- 1. 酒泉职业技术学院,甘肃酒泉 735000
- 折叠
摘要
为了探究底物配比对蔬菜废叶厌氧发酵产沼气性能的影响,本研究对春光市场上典型的两种蔬菜废叶进行混合厌氧发酵,采用批量式试验,在恒温35±1℃条件下,测定不同配比蔬菜废弃物厌氧发酵的总固体含量(TS)、挥发性固体含量(VS)、挥发性脂肪酸(VFA)质量浓度、pH值变化、产沼气量及甲烷含量等指标变化.结果表明,C组即底物配比为6∶4时,两种蔬菜废叶的TS降解率为46.95%,VS降解率为55.56%,VFA质量浓度为300.00mg·L-1,日产沼气量最高为410mL,累积产沼气总量为 2272mL,甲烷含量为65.15%,均普遍优于其他试验组.
Abstract
In order to explore the influence of substrate ratio on biogas production performance of vegetable waste leaves,two typical vegetable waste leaves in the spring market were mixed for anaerobic fermentation.Batch experiments were conducted to determine the total solid content(TS),volatile solid content(VS),volatile fatty acid(VFA)mass concentration,pH value change,biogas production and methane of different proportions of vegetable waste anaerobic fermentation at a constant temperature of 35±1℃.The results showed that in group C,when the substrate ratio was 6:4,the degradation rate of TS was 46.95%,the degradation rate of VS was 55.56%,the mass concentration of VFA was 300.00 mg L-1,the maximum biogas production per day was 410mL,the total biogas production was 2272mL,and the methane content was 65.15%,which were generally superior to other experimental groups.
关键词
底物配比/蔬菜废叶/厌氧发酵/沼气Key words
substrate ratio/waste leaves of vegetables/anaerobic fermentation/marsh gas引用本文复制引用
出版年
2024
NETL
NSTL
万方数据