In this study, the potential effect of surfactant assisted ultrasonic pretreatment on mixed food waste was investigated. Surfactants, such as Rhamnolipid, Sodium dodecyl sulfate; Glucopon and Triton X 100 were evaluated in this work. Among them, the maximum solubilization of chemical oxygen demand of 45.5 % and the highest release of soluble COD of 31 g/L were observed for ultrasonication assisted by Triton X 100 at a dose of 0.01 g/g TS in 30 min. The presence of a surfactant also reduced 27.5 % of energy demand when compared to ultrasonic pretreatment alone. Compared to the non-pretreated samples after anaerobic digestion, ultrasonication assisted by Triton X 100 led to 95 % increase of volatile fatty acid titers and 83 % increase of carbon conversion efficiency. Thus, sonication with the addition of Triton X 100 was proven to be highly effective toward increasing digestibility of and yield of volatile fatty acid from mixed food waste.

在这项研究中，研究了表面活性剂辅助超声预处理对混合食物垃圾的潜在影响。表面活性剂，如鼠李糖脂、十二烷基硫酸钠；Glucopon 和 Triton X 100 在这项工作中进行了评估。其中，在 0.01 g/g TS 剂量的 Triton X 100 辅助超声处理 30 分钟内，化学需氧量的最大增溶量为 45.5%，可溶性 COD 的最高释放量为 31 g/L。与单独的超声波预处理相比，表面活性剂的存在也减少了 27.5% 的能量需求。与厌氧消化后未预处理的样品相比，Triton X 100 辅助超声处理导致挥发性脂肪酸滴度增加 95%，碳转化效率增加 83%。因此，