Dipartimento di Scienze Agrarie, Forestali e Alimentari, Università di Torino, 10095 Grugliasco, Italy.
Dipartimento di Scienze delle Produzioni Agrarie e Alimentari, Università di Catania, Via S. Sofia 98, 95123 Catania, Italy.
Molecules. 2023 Nov 20;28(22):7670. doi: 10.3390/molecules28227670.
Municipal biowastes are conventionally treated by assessed anaerobic and aerobic fermentation to produce biogas, anaerobic digestate, and compost. Low-temperature hydrolysis and the oxidation of the digestate and compost, which are still at the experimental stage, are known to yield water-soluble value-added chemical specialities for use in different sectors of the chemical industry and in agriculture. The present paper reports the application of the two chemical reactions to the biowastes before fermentation. The products obtained in this manner are compared with those obtained from the chemical reactions applied to the fermented biowastes. Based on the experimental results, the paper discusses the expected environmental and economic benefits of the above chemical processes and products in comparison with the products obtained by other known biotechnologies for the valorisation of biomass as a feedstock for the biobased chemical industry. The results point out that a sustainable biowaste-based refinery that produces biofuel and biobased chemicals may be developed by integrating chemical and fermentation technologies.
城市生物废物通常通过评估的厌氧和有氧发酵来处理，以生产沼气、厌氧消化物和堆肥。低温水解以及消化物和堆肥的氧化，这些仍处于实验阶段，已知可产生用于化学工业和农业不同领域的水溶性增值化学品。本文报告了在发酵前将这两种化学反应应用于生物废物的情况。以这种方式获得的产品与应用于发酵生物废物的化学反应获得的产品进行了比较。基于实验结果，本文讨论了与其他已知的生物质增值生物技术相比，上述化学工艺和产品在环境和经济方面的预期效益，这些生物技术将生物质作为生物基化学工业的原料。结果表明，通过整合化学和发酵技术，可能开发出一种可持续的以生物废物为基础的炼油厂，生产生物燃料和生物基化学品。
