Cost benefit analysis (CBA) and social impact assessment are well established methodologies to systematically estimate the viability of investments on technologies as well as the benefits for the society. However, there is a limited application of these assessment methods in the wastewater sector especially for resource recovery to deliver circularity objectives within urban water cycle management. In this regard, the Horizon 2020 SMART-Plant Innovation Action aimed to evaluate holistic impacts of wastewater-based resource recovery by applying and adapting cost benefit and social analysis on innovative technologies (SMARTechs). The SMARTechs were implemented and validated in real wastewater treatment plants (WWTPs) across Europe and Mediterranean basin where potential impacts in terms of carbon, material and energy efficiency, recovery and safe reuse were defined. Sixteen bottom-up SMARTech scenarios were analysed for the estimation of technical, economic and social impacts using CBA, social life cycle assessment (S-LCA) and social readiness level (SRL) methods. Overall, the SMARTechs created benefits both from an environmental and social point of view, with a maximum relative total economic value up to +23% compared to baseline scenario (without any SMARTech implementation). In terms of social benefits, the S-LCA highlighted a global positive impact of all the SMARTechs in terms of technical characteristics and social acceptance. Specifically, SMARTech 1 (cellulose recovery) was the most socially accepted solution thanks to its high performance and simplicity. Finally, based on the SRL assessment, most of the SMARTechs were positioned within the SRL range of 6–7, which implies a good societal acceptance and adaptation potential.

成本效益分析 (CBA) 和社会影响评估是系统评估技术投资可行性以及社会效益的成熟方法。然而，这些评估方法在废水部门的应用有限，特别是在资源回收方面，以实现城市水循环管理中的循环目标。在这方面，地平线 2020 智能工厂创新行动旨在通过对创新技术 (SMARTechs) 应用和调整成本效益和社会分析来评估基于废水的资源回收的整体影响。SMARTechs 在欧洲和地中海盆地的实际污水处理厂 (WWTP) 中实施和验证，在碳、材料和能源效率方面的潜在影响，定义了回收和安全再利用。使用 CBA、社会生命周期评估 (S-LCA) 和社会准备水平 (SRL) 方法分析了 16 个自下而上的 SMARTech 情景，以估计技术、经济和社会影响。总体而言，SMARTechs 从环境和社会的角度都创造了效益，与基准情景（没有任何 SMARTech 实施）相比，最大相对总经济价值高达 +23%。在社会效益方面，S-LCA 强调了所有 SMARTechs 在技术特性和社会接受度方面的全球积极影响。具体来说，SMARTech 1（纤维素回收）由于其高性能和简单性而成为最被社会接受的解决方案。最后，根据 SRL 评估，大多数 SMARTechs 位于 SRL 范围 6-7 内，