@article{f2e24254ce5d4b5ebec48b9a71751d6a,
title = "Enhanced Oxygen Volumetric Mass Transfer in a Geometrically Constrained Vortex",
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).",
keywords = "Aeration systems, Hyperbolic funnel, Oxygen diffusion, Vortex",
author = "Agostinho, {Luewton L.F.} and Rene Pecnik and Jakob Woisetschl{\"a}ger and {de Kroon}, Esther and Nicolae {\c S}i{\c s}canu and {van de Griend}, {Maarten V.} and Willibald Loiskandl and Fuchs, {Elmar C.}",
note = "Funding Information: This work was performed at Wetsus (https://www.wetsus.eu), European Center of Excellence for Sustainable Water Technology. Wetsus is co-funded by the Dutch Ministry of Economic Affairs and Ministry of Infrastructure and Environment, the Province of Frysl{\^a}n, and the Northern Netherlands Provinces. The authors would like to thank the participants of the research theme “Applied Water Physics” as well as Philipp Kuntke for the fruitful discussions and their financial support. Publisher Copyright: {\textcopyright} 2022 by the authors. Licensee MDPI, Basel, Switzerland.",
year = "2022",
month = mar,
day = "1",
doi = "10.3390/w14050771",
language = "English",
volume = "14",
journal = "Water (Switzerland)",
issn = "2073-4441",
publisher = "MDPI",
number = "5",
}
