Title: Feasibility Study for the Separation of Solid Particles from High-Pressure Water Jet Process Water with a Hydrocyclone
Authors: Senfter, Thomas 
Stern, Benedikt 
Pillei, Martin 
Senn, Mathias 
Berger, Manuel 
Kofler, Tobias 
Mayerl, Christian 
Ehrensberger, Christoph 
Kraxner, Michael 
Keywords: solid-liquid separation; wastewater; hydrocyclone; tunneling; water jet cutting
Issue Date: Dec-2020
Book Title: Proceedings of the 16th Minisymposium Verfahrenstechnik and 7th Partikelforum (TU Wien, Sept. 21/22, 2020) 
On the tunneling site Perjen (Tyrol, Austria) thin concrete layers are removed by water jet cutting from the wall inside the tunnel. In this process, a daily volume of 5-10 m³ of wastewater is produced which is stored temporarily on-site and periodically taken away by a waste disposal company. In order to reduce disposal costs the reduction of the wastewater volume by mechanical treatment is required. Therefore, a hydrocyclone was tested on-site for evaluation purpose. The particle concentration in the underflow of the hydrocyclone is 32 % (average) higher than the inlet particle concentration, whereas the overflow concentration is 28 % (average) smaller than the inlet particle concentration. In conclusion, particle separation by a hydrocyclone is partly possible for the present wastewater.
URI: http://hdl.handle.net/20.500.12708/16649
DOI: 10.34726/589
Organisation: E166-02-2 - Forschungsgruppe Fluiddynamische Simulation (CFD) 
License: CC BY 4.0 CC BY 4.0
Publication Type: Inproceedings
Appears in Collections:Conference Paper

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