Effects of Substrate Ratio on Biogas Production from Waste Leaves of Two Vegetables by Anaerobic Fermentation
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.
substrate ratiowaste leaves of vegetablesanaerobic fermentationmarsh gas
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