Durkin Alex, Vinestock Tom, Guo Miao
Department of Chemical Engineering, Imperial College London, SW7 2AZ, UK.
Department of Engineering, King's College London, WC2R 2LS, UK.
Carbon Capture Sci Technol. 2024 Dec;13:None. doi: 10.1016/j.ccst.2024.100319.
Meeting the needs of a growing population calls for a change from linear production systems that exacerbate the depletion of finite natural resources and the emission of environmental pollutants. These linear production systems have resulted in the human-driven perturbation of the Earth's natural biogeochemical cycles and the transgression of environmentally safe operating limits. One solution that can help alleviate the environmental issues associated both with resource stress and harmful emissions is resource recovery from waste. In this review, we address the recovery of resources from food and beverage processing wastewater (FPWW), which offers a synergistic solution to some of the environmental issues with traditional food production. Research on resource recovery from FPWW typically focuses on technologies to recover specific resources without considering integrative process systems to recover multiple resources while simultaneously satisfying regulations on final effluent quality. Process Systems Engineering (PSE) offers methodologies able to address this holistic process design problem, including modelling the trade-offs between competing objectives. Optimisation of FPWW treatment and resource recovery has significant scope to reduce the environmental impacts of food production systems. There is significant potential to recover carbon, nitrogen, and phosphorus resources while respecting effluent quality limits, even when the significant uncertainties inherent to wastewater systems are considered. This review article gives an overview of the environmental challenges we face, discussed within the framework of the planetary boundary, and highlights the impacts caused by the agri-food sector. This paper also presents a comprehensive review of the characteristics of FPWW and available technologies to recover carbon and nutrient resources from wastewater streams with a particular focus on bioprocesses. PSE research and modelling advances are discussed in this review. Based on this discussion, we conclude the article with future research directions.
满足不断增长的人口需求要求从线性生产系统转变,因为这种系统会加剧有限自然资源的消耗和环境污染物的排放。这些线性生产系统导致了人类对地球自然生物地球化学循环的干扰以及超出环境安全运行极限。一种有助于缓解与资源压力和有害排放相关的环境问题的解决方案是从废物中回收资源。在本综述中,我们探讨了从食品和饮料加工废水(FPWW)中回收资源的问题,这为解决传统食品生产中的一些环境问题提供了一种协同解决方案。关于从FPWW中回收资源的研究通常侧重于回收特定资源的技术,而没有考虑整合工艺系统以同时回收多种资源并满足最终出水水质法规。过程系统工程(PSE)提供了能够解决这一整体过程设计问题的方法,包括对相互竞争目标之间的权衡进行建模。优化FPWW处理和资源回收在很大程度上有潜力减少食品生产系统对环境的影响。即使考虑到废水系统固有的重大不确定性,在遵守出水水质限制的同时回收碳、氮和磷资源仍具有巨大潜力。本文综述了我们在地球边界框架内讨论所面临的环境挑战,并强调了农业食品部门造成的影响。本文还全面综述了FPWW的特性以及从废水流中回收碳和营养资源的可用技术,特别关注生物过程。本综述讨论了PSE研究和建模进展。基于此讨论,我们在文章结尾给出了未来的研究方向。