Enhancement of bioenergy recovery from agricultural wastes through recycling of cellulosic alcoholic fermentation vinasse for anaerobic co-digestion.
Enhancement of bioenergy recovery from agricultural wastes through recycling of cellulosic alcoholic fermentation vinasse for anaerobic co-digestion.
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DOI：
10.1016/j.biortech.2020.123511
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发表时间：
2020-05
影响因子：
11.4
通讯作者：
L. Meng;Keda Jin;Ran Yi;Mengdi Chen;Jingjing Peng;Yulong Pan
中科院分区：
文献类型：
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作者：
L. Meng;Keda Jin;Ran Yi;Mengdi Chen;Jingjing Peng;Yulong Pan
Cellulosic alcoholic fermentation generates large amounts of vinasse, which was utilized in the present work to enhance the anaerobic digestion of rice straw and swine manure at different total solid (TS) contents. Straw fermentation resulted in bioethanol and vinasse yields of 95.2 g and 857.7 mL, respectively, per kg dry straw. Vinasse-straw co-digestion showed the highest cumulative biogas yield of 633.4 L kg−1VS at 3% TS. Therefore, biogas productivity from co-digestion represented 92.1% higher than that of straw mono-digestion. Vinasse-manure co-digestion showed the highest cumulative biogas yield of 676.7 L kg−1VS at 3% TS at a shorter technical digestion time, which resulted in 53.9% higher biomethane productivity than the corresponding vinasse-straw. Consequently, vinasse co-digestion at all studied TS ratios enhanced the total gross energy output rate (GEORtotal) over mono-digestion. Amongst, vinasse-manure co-digestion at 3% TS showed 7.9% higher GEORtotalthan the highest recorded value from vinasse-straw co-digestion.
