Swedish Centre for Resource Recovery, University of Borås, 50190 Borås, Sweden.
College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Swedish Centre for Resource Recovery, University of Borås, 50190 Borås, Sweden.
Bioresour Technol. 2020 Apr;301:122778. doi: 10.1016/j.biortech.2020.122778. Epub 2020 Jan 10.
With the inevitable rise in human population, resource recovery from waste stream is becoming important for a sustainable economy, conservation of the ecosystem as well as for reducing the dependence on the finite natural resources. In this regard, a bio-based circular economy considers organic wastes and residues as potential resources that can be utilized to supply chemicals, nutrients, and fuels needed by mankind. This review explored the role of aerobic and anaerobic digestion technologies for the advancement of a bio-based circular society. The developed routes within the anaerobic digestion domain, such as the production of biogas and other high-value chemicals (volatile fatty acids) were discussed. The potential to recover important nutrients, such as nitrogen through composting, was also addressed. An emphasis was made on the innovative models for improved economics and process performance, which include co-digestion of various organic solid wastes, recovery of multiple bio-products, and integrated bioprocesses.
随着人口的必然增长，从废物流中回收资源对于可持续经济、生态系统的保护以及减少对有限自然资源的依赖变得越来越重要。在这方面，基于生物的循环经济将有机废物和残渣视为潜在资源，可以利用这些资源来供应人类所需的化学品、营养物质和燃料。本综述探讨了好氧和厌氧消化技术在建立基于生物的循环社会方面的作用。讨论了在厌氧消化领域内发展的途径，如沼气生产和其他高价值化学品（挥发性脂肪酸）的生产。还探讨了通过堆肥回收重要营养物质（如氮）的潜力。重点介绍了提高经济效益和工艺性能的创新模式，包括各种有机固体废物的共消化、多种生物产品的回收和综合生物工艺。
