Shifting the paradigm from waste to product: the circular economy in wastewater treatment. The case of the PTAR of Prat, Barcelona, Spain
Keywords:
Eco-factories, water reuse, energy self-sufficiency, waste valorisation, BarcelonaAbstract
This paper analyses the transformation of Wastewater Treatment Plants (WWTP) into eco-factories in the Metropolitan Area of Barcelona. A mixed methodology was used, including a literature review and analysis of technical documentation. The results show that eco-factories enable water regeneration and reuse, energy self-sufficiency, and waste valorisation. The conclusions highlight the environmental, economic, and social benefits of this model, as well as the challenges associated with energy costs and social acceptance.
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Copyright (c) 2026 Michelle Atala Urrea Vivas, Hilda Guerrero-García-Rojas, Luis Alberto Seguí Amórtegui
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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
