Recent advances in anaerobic co-digestion of excess sludge and food waste [剩余污泥与餐厨垃圾协同厌氧消化研究进展]

作者：Zhang X.-X.; Jiao P.-B.; Yang H.-Y.; Wu R.-M.; Li Y.-M.; Ma L.-P.^*

来源：China Environmental Science, 2022, 42(5): 2179-2194.

• Anaerobic co-digestion
• Co-digestion of multiple wastes
• Direct interspecies electron transfer
• Excess sludge
• Food waste
• Influencing factors

In order to promote the industrial-scale application of anaerobic co-digestion (AcoD) of sewage excess sludge (ES) with food waste (FW) and enhance its energy recovery efficiency, this study systematically summarized the mechanisms of AcoD process, the distribution of co-digestive products and the factors that may affect the AcoD performance, the important research advances of direct interspecific electron transfer in AcoD were then reviewed, followed by the novel perspectives of AcoD process were proposed, such as developing efficient and economic methods for feedstock pretreatment, characterizing substrates degradation, understanding metabolic regulation by omics technologies, mitigating the effect of potential inhibitors in the AcoD systems, and in-situ coupling with other wastes, to improve digestion performance and stability. This study may provide a guidance and reference for efficient energy recovery of urban organic solid wastes.

• 单位
  华东师范大学; 同济大学