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Open AccessArticle

Numerical and Laboratory Investigations of Closely-Spaced and Joint Infiltration of Precipitation and Treated Waste Water

1
Technische Universität Dresden, Institute of Groundwater Management, Bergstraße 66, 01069 Dresden, Germany
2
Helmholtz-Centre for Environmental Research, Department Monitoring and Exploration Technologies, Permoserstraße 15, 04318 Leipzig, Germany
*
Author to whom correspondence should be addressed.
Both authors contributed equally to this study and should be considered as co-first authors.
Water 2019, 11(11), 2262; https://doi.org/10.3390/w11112262
Received: 24 September 2019 / Revised: 15 October 2019 / Accepted: 24 October 2019 / Published: 28 October 2019
(This article belongs to the Section Water and Wastewater Treatment)
The closely-spaced infiltration of treated waste water and precipitation water may have advantages when compared to the single infiltration, such as reduction of construction costs and space requirements. Recent numerical works showed the theoretical applicability of this approach. A physical tank experiment has been set-up to study the processes in more detail and provide real data on the water flow as well as the purification potential during infiltration. Various scenarios of treated waste water infiltration with and without precipitation events have been technically realized. These data have then been used to implement a numerical model that supported the review of criteria for a proof of the principal applicability. A joint infiltration set-up is proposed and analyzed after successful evaluation of the closely-spaced, but separated infiltration of treated waste water and precipitation water. Again, both the laboratory and numerical works show the principal applicability of the proposed technique. View Full-Text
Keywords: laboratory tank; numerical simulation; treated waste water; infiltration; purification potential laboratory tank; numerical simulation; treated waste water; infiltration; purification potential
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Händel, F.; Fichtner, T.; Graeber, P.-W. Numerical and Laboratory Investigations of Closely-Spaced and Joint Infiltration of Precipitation and Treated Waste Water. Water 2019, 11, 2262.

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