Increased demand for effective waste management strategies, along with the need for a transition from a fossil fuel-based economy to a bio-based economy sharpens the need for synergies and scientific innovations. Food waste (FW) is an essential component of municipal solid waste, and its accumulation has become a global concern. This work discusses a closed-loop integrated biorefinery. It couples thermal hydrolysis with anaerobic digestion and photofermentation for the recovery of bioenergy resources and the production of value-added products. Thermal hydrolysis yielded up to 40.4% solids solubilization, allowing the separation of an organic-rich hydrolysate. This pre-treatment also improves anaerobic digestibility of the solid fraction, thus increasing biogas production, which can feed a combined heat and power plant. This approach makes the process sustainable and energy-efficient while decreasing the total volume of the disposal waste by 78.6%. Phototrophic treatment of the hydrolysate through a purple phototrophic bacteria-based mixed culture resulted in biomass growth with high protein content (65% wt.). The system also produced polyhydroxyalkanoates (PHA) and hydrogen, accounting for a total valorization of 16.9% of the initial total solids of the raw food waste. This variety of possible products allows setting a seasonal production in a biorefinery, depending on the composition of the debris and the market demand. Modulation of the nitrogen composition of the food waste can help to choose the best option, where low Nitrogen drives PHA and hydrogen production. In contrast, high Nitrogen leads to increased protein production.

对有效废物管理策略的需求不断增长，同时也需要从基于化石燃料的经济过渡到以生物为基础的经济，这加剧了人们对协同增效和科学创新的需求。餐厨垃圾是城市生活垃圾的重要组成部分，其积累已成为全球关注的问题。这项工作讨论了闭环一体化生物精炼厂。它结合了热水解与厌氧消化和光发酵，以回收生物能源和生产增值产品。热水解产生高达40.4％的固体溶解度，从而可以分离出富含有机物的水解产物。这种预处理还提高了固体馏分的厌氧消化率，从而增加了沼气产量，可为热电厂联合供气。这种方法使该过程具有可持续性和能源效率，同时将处置废物的总量减少了78.6％。通过基于紫色光养细菌的混合培养物对水解产物进行光养处理，导致生物质生长且蛋白质含量高（65％wt。）。该系统还产生了聚羟基链烷酸酯（PHA）和氢气，占原料食品废弃物初始总固体含量的16.9％的总增值。各种可能的产品允许根据残渣的成分和市场需求在生物精炼厂中进行季节性生产。调节食物垃圾中的氮成分可以帮助选择最佳选择，因为低氮会驱动PHA和氢的产生。相反，高氮导致蛋白质产量增加。