Management of urban waters with nature-based solutions in circular cities : exemplified through seven urban circularity challenges
ID Oral, Hasan Volkan (Author), ID Radinja, Matej (Author), ID Rizzo, Anacleto (Author), ID Kearney, Katharina (Author), ID Andersen, Theis Raaschou (Author), ID Krzeminski, Pawel (Author), ID Buttiglieri, Gianluigi (Author), ID Ayral-Cinar, Derya (Author), ID Comas, Joaquim (Author), ID Gajewska, Magdalena (Author), ID Hartl, Marco (Author), ID Finger, David Christian (Author), ID Kazak, Jan K. (Author), ID Mattila, Harri (Author), ID Vieira, Patricia I. (Author), ID Piro, Patrizia (Author), ID Palermo, Stefania Anna (Author), ID Turco, Michele (Author), ID Pirouz, Behrouz (Author), ID Stefanakis, Alexandros (Author), ID Regelsberger, Martin (Author), ID Ursino, Nadia (Author), ID Carvalho, Pedro N. (Author)

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Nature-Based Solutions (NBS) have been proven to effectively mitigate and solve resource depletion and climate-related challenges in urban areas. The COST (Cooperation in Science and Technology) Action CA17133 entitled “Implementing nature-based solutions (NBS) for building a resourceful circular city” has established seven urban circularity challenges (UCC) that can be addressed effectively with NBS. This paper presents the outcomes of five elucidation workshops with more than 20 European experts from different backgrounds. These international workshops were used to examine the effectiveness of NBS to address UCC and foster NBS implementation towards circular urban water management. A major outcome was the identification of the two most relevant challenges for water resources in urban areas: ‘Restoring and maintaining the water cycle’ (UCC1) and ‘Water and waste treatment, recovery, and reuse’ (UCC2). s Moreover, significant synergies with ‘Nutrient recovery and reuse’, ‘Material recovery and reuse’, ‘Food and biomass production’, ‘Energy efficiency and recovery’, and ‘Building system recovery’ were identified. Additionally, the paper presents real-life case studies to demonstrate how different NBS and supporting units can contribute to the UCC. Finally, a case-based semi-quantitative assessment of the presented NBS was performed. Most notably, this paper identifies the most typically employed NBS that enable processes for UCC1 and UCC2. While current consensus is well established by experts in individual NBS, we presently highlight the potential to address UCC by combining different NBS and synergize enabling processes. This study presents a new paradigm and aims to enhance awareness on the ability of NBS to solve multiple urban circularity issues.

Keywords:blue-green infrastructure, climate change and mitigation, sustainable water management, urban circularity challenges, water reuse
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Publication status:Published
Publication version:Version of Record
Number of pages:28 str.
Numbering:Vol. 13, iss. 23, art. 3334
PID:20.500.12556/RUL-133607 This link opens in a new window
ISSN on article:2073-4441
DOI:10.3390/w13233334 This link opens in a new window
COBISS.SI-ID:87339267 This link opens in a new window
Publication date in RUL:03.12.2021
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Shortened title:Water
Publisher:Molecular Diversity Preservation International - MDPI
COBISS.SI-ID:36731653 This link opens in a new window


License:CC BY 4.0, Creative Commons Attribution 4.0 International
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:01.12.2021

Secondary language

Keywords:modro-zelena infrastruktura, blaženje podnebnih sprememb, trajnostno upravljanje voda, izzivi urbanega kroženja snovi, ponovna uporaba vode


Funder:Other - Other funder or multiple funders
Funding programme:COST
Project number:CA17133
Name:Implementing nature-based solutions for creating a resourceful circular city
Acronym:Circular City

Funder:FCT - Fundação para a Ciência e a Tecnologia, I.P.

Funder:EC - European Commission
Funding programme:European Regional Development Fund, Centro Portugal Regional Operational Programme (Centro2020)
Project number:CENTRO-04-3559-FSE-000095

Funder:Other - Other funder or multiple funders
Funding programme:Spain, Ministry of Economy and Competitiveness
Project number:CTM2017-85385-C2-1-R

Funder:Other - Other funder or multiple funders
Funding programme:Generalitat de Catalunya, Consolidated Research Group
Project number:2017-SGR-1318

Funder:Other - Other funder or multiple funders
Funding programme:Generalitat de Catalunya, CERCA

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