Aged refuse enhances anaerobic fermentation of food waste to produce short-chain fatty acids.
Aged refuse enhances anaerobic fermentation of food waste to produce short-chain fatty acids.
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DOI：
10.1016/j.biortech.2019.121547
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发表时间：
2019-10
影响因子：
11.4
通讯作者：
Jianwei Zhao;Yiming Jing;Jing Zhang;Yingjie Sun;Ya-nan Wang;Huawei Wang;X. Bi
中科院分区：
文献类型：
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作者：
Jianwei Zhao;Yiming Jing;Jing Zhang;Yingjie Sun;Ya-nan Wang;Huawei Wang;X. Bi
In this work, a new technology of intensifying anaerobic fermentation of food waste to accumulate SCFA by using landfill degradation product aged refuse (AR) was reported. The experimental results showed that AR enhanced the accumulation of SCFA, and when the optimal dosage of AR was 300 mg/g, the maximum accumulation of SCFA was 32.5 g/L, which was around 1.9 times that of the blank group. Mechanism investigations had shown that AR accelerated the disintegration of food waste to release soluble carbohydrates and proteins. The model experiment of synthetic wastewater revealed that AR improved both hydrolysis and acidification efficiencies but inhibited the methanogenesis process, thereby accumulating SCFA. 454 high-throughput sequencing showed that AR increased the relative abundance ofClostridiumandSporanaerobacter, which benefited anaerobic hydrolysis of food waste.
