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Journal Articles Water Year : 2021

Nature-Based Units as Building Blocks for Resource Recovery Systems in Cities

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Zeynep Cetecioglu
Bart de Gusseme
  • Function : Author
Maja Djolic
Miriam van Eekert
Tjaša Griessler Bulc
  • Function : Author
Berat Haznedaroglu
Darja Istenič
Johannes Kisser
  • Function : Author
Sanna Melita
  • Function : Author
Dolja Pavlova
Elżbieta Płaza
  • Function : Author
Andreas Schoenborn
  • Function : Author
Geraldine Thomas
  • Function : Author
Maria Wirth
Marco Hartl
Grietje Zeeman
  • Function : Author

Abstract

Cities are producers of high quantities of secondary liquid and solid streams that are still poorly utilized within urban systems. In order to tackle this issue, there has been an ever-growing push for more efficient resource management and waste prevention in urban areas, following the concept of a circular economy. This review paper provides a characterization of urban solid and liquid resource flows (including water, nutrients, metals, potential energy, and organics), which pass through selected nature-based solutions (NBS) and supporting units (SU), expanding on that characterization through the study of existing cases. In particular, this paper presents the currently implemented NBS units for resource recovery, the applicable solid and liquid urban waste streams and the SU dedicated to increasing the quality and minimizing hazards of specific streams at the source level (e.g., concentrated fertilizers, disinfected recovered products). The recovery efficiency of systems, where NBS and SU are combined, operated at a micro- or meso-scale and applied at technology readiness levels higher than 5, is reviewed. The importance of collection and transport infrastructure, treatment and recovery technology, and (urban) agricultural or urban green reuse on the quantity and quality of input and output materials are discussed, also regarding the current main circularity and application challenges.
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Dates and versions

hal-03904256 , version 1 (18-12-2022)

Licence

Attribution - CC BY 4.0

Identifiers

Cite

Eric van Hullebusch, Aida Bani, Miguel Carvalho, Zeynep Cetecioglu, Bart de Gusseme, et al.. Nature-Based Units as Building Blocks for Resource Recovery Systems in Cities. Water, 2021, 13 (22), pp.3153. ⟨10.3390/w13223153⟩. ⟨hal-03904256⟩
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