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Effects of Total Solid Content on Anaerobic Fermentation Performance and Biogas Productivity of Tail Vegetables

文献类型： 外文期刊

作者： Yao, Li 1 ; Wang, Yanqin 1 ; Li, Ran 1 ; Fu, Longyun 1 ; Liu, Zhaodong 1 ; Gao, Xinhao 1 ;

作者机构： 1.Shandong Acad Agr Sci, Inst Agr Resources & Environm, State Key Lab Nutrient Use & Management, Key Lab Wastes Matrix Utilizat,Minist Agr & Rural, Jinan 250100, Peoples R China

关键词： tail vegetables; anaerobic fermentation; methane production; total solid ratio; volatile fatty acids

期刊名称：FERMENTATION-BASEL （ 影响因子：3.3； 五年影响因子：3.5 ）

ISSN：

年卷期： 2024 年 10 卷 8 期

页码：

收录情况： SCI

摘要： A large amount of vegetable waste generated by farms is currently damaging the environment and public health. Anaerobic fermentation is a mature technology that significantly contributes to the recovery of energy and resources from tail vegetables and the control of environmental pollution. However, most vegetable wastes have not been utilized due to poor performance of biogas production, lack of optimal solid contents, and multiple other reasons. Herein, the anaerobic digestion biogas production performance of tail vegetables treated with different total solid (TS) content was studied using solanaceous and leafy vegetables as raw materials. Results showed that there was no acidification in all trials except for treatment with TS of 6%. The optimal TS for anaerobic fermentation of vegetable waste was determined to be around 20% in terms of methane production and biogas production efficiency. The cumulative methane production per unit of volatile solids (VSs) reached 241.7 mL CH4/g of VS, and the methane content was about 65% during the peak period of biogas production. Theoretically, the value of methane production based on anaerobic fermentation of tail vegetables is as high as 1.8 x 10(13) similar to 4.6 x 10(13) L in China. This research provides advice for screening specific and efficient parameters to promote the biogas production rate by tail vegetable anaerobic fermentation.

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