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Review

Wetland Roofs as an Attractive Option for Decentralized Water Management and Air Conditioning Enhancement in Growing Cities—A Review

1
Helmholtz Centre for Environmental Research—UFZ, Centre for Environmental Biotechnology, Permoserstraße 15, D-04318 Leipzig, Germany
2
Helmholtz Centre for Environmental Research—UFZ, Department of Environmental Informatics, Permoserstraße 15, D-04318 Leipzig, Germany
3
Ingenieurbüro Blumberg, Gänsemarkt 10, 37120 Bovenden, Germany
*
Author to whom correspondence should be addressed.
Water 2019, 11(9), 1845; https://doi.org/10.3390/w11091845
Received: 8 July 2019 / Revised: 29 August 2019 / Accepted: 2 September 2019 / Published: 5 September 2019
While constructed wetlands have become established for the decentralized treatment of wastewater and rainwater, wetland roofs have only been built in isolated cases up to now. The historical development of wetland roofs is described here on the basis of a survey of literature and patents, and the increasing interest in this ecotechnology around the world is presented. In particular, this article describes the potential for using wetland roofs and examines experience with applications in decentralized water management in urban environments and for climate regulation in buildings. Wetland roofs are suitable as a green-blue technology for the future—particularly in cities with an acute shortage of unoccupied ground-level sites—for the decentralized treatment of wastewater streams of various origins. Positive “side effects” such as nearly complete stormwater retention and the improvement of climates in buildings and their surroundings, coupled with an increase in biodiversity, make wetland roofs an ideal multi-functional technology for urban areas. View Full-Text
Keywords: (irrigated) wetland roof; wetroof; decentralized water management; water treatment; natural air conditioning; greywater recycling; wet green roof (irrigated) wetland roof; wetroof; decentralized water management; water treatment; natural air conditioning; greywater recycling; wet green roof
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MDPI and ACS Style

Zehnsdorf, A.; Willebrand, K.C.U.; Trabitzsch, R.; Knechtel, S.; Blumberg, M.; Müller, R.A. Wetland Roofs as an Attractive Option for Decentralized Water Management and Air Conditioning Enhancement in Growing Cities—A Review. Water 2019, 11, 1845. https://doi.org/10.3390/w11091845

AMA Style

Zehnsdorf A, Willebrand KCU, Trabitzsch R, Knechtel S, Blumberg M, Müller RA. Wetland Roofs as an Attractive Option for Decentralized Water Management and Air Conditioning Enhancement in Growing Cities—A Review. Water. 2019; 11(9):1845. https://doi.org/10.3390/w11091845

Chicago/Turabian Style

Zehnsdorf, Andreas, Keani C.U. Willebrand, Ralf Trabitzsch, Sarah Knechtel, Michael Blumberg, and Roland A. Müller. 2019. "Wetland Roofs as an Attractive Option for Decentralized Water Management and Air Conditioning Enhancement in Growing Cities—A Review" Water 11, no. 9: 1845. https://doi.org/10.3390/w11091845

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