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Enhanced Oxygen Volumetric Mass Transfer in a Geometrically Constrained Vortex

Journal Article (2022)
Authors

Luewton L.F. Agostinho (NHL University of Applied Science, Wetsus, European Centre of Excellence for Sustainable Water Technology)

R. Pecnik (TU Delft - Energy Technology)

Jakob Woisetschläger (Graz University of Technology)

Esther de Kroon (NHL University of Applied Science, Wetsus, European Centre of Excellence for Sustainable Water Technology)

Nicolae Şişcanu (Wetsus, European Centre of Excellence for Sustainable Water Technology, Wageningen University & Research)

Maarten V. van de Griend (BOKU-University of Natural Resources and Life Sciences, Wetsus, European Centre of Excellence for Sustainable Water Technology)

Willibald Loiskandl (BOKU-University of Natural Resources and Life Sciences)

Elmar C. Fuchs (University of Twente, Wetsus, European Centre of Excellence for Sustainable Water Technology)

Research Group
Energy Technology
Copyright
© 2022 Luewton L.F. Agostinho, Rene Pecnik, Jakob Woisetschläger, Esther de Kroon, Nicolae Şişcanu, Maarten V. van de Griend, Willibald Loiskandl, Elmar C. Fuchs
To reference this document use:
https://doi.org/10.3390/w14050771
More Info
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Publication Year
2022
Language
English
Copyright
© 2022 Luewton L.F. Agostinho, Rene Pecnik, Jakob Woisetschläger, Esther de Kroon, Nicolae Şişcanu, Maarten V. van de Griend, Willibald Loiskandl, Elmar C. Fuchs
Related content
Research Group
Energy Technology
Issue number
5
Volume number
14
DOI:
https://doi.org/10.3390/w14050771
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Abstract

Aeration is one of the most cost intensive steps in water and wastewater treatment due to the large energy requirement for the creation of large surfaces for sufficient gas exchange as well as for providing efficient liquid transport in order to exchange saturated liquid elements at the surface with unsaturated ones from the bulk. In this work we show that geometrically constrained vortices in a hyperbolic funnel are a promising aeration technique as they meet these criteria and allow oxygen transfer coefficients up to 50 h−1, a number significantly higher than that of comparable methods like air jets or impellers (<10 h−1).