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CFD analysis of experimental adjustments on wastewater treatment sedimentation tank inflow zone

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Abstract

In this research study, we are using CFD to better understand processes in a wastewater settling tank. Secondary sedimentation tanks belong to the most important objects at the wastewater treatment line. CFD plays an important part in better understanding the processes from a standpoint of operation and optimization. We conducted four CFD simulations based on a verified model of a secondary settling tank at the wastewater treatment plant in Nitra, SK. The four simulations contain four different adjustments to the inlet zone of the tank. We reached a reduction in sludge zone velocity to 6 from 12 mm/s in a representative measurement profile. We also analyze the influence of temperature-induced viscosity changes based on seasonal temperature change.

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Acknowledgements

This research was conducted with support of the Slovak research and development agency under Contract No. APVV037212 and the Science Grant Agency of the Slovak Ministry of Education (VEGA), Project No. 1/0631/15.

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Authors and Affiliations

  1. Department of Sanitary and Environmental Engineering, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Radlinského 11, 810 05, Bratislava, Slovak Republic

    Stanko Štefan, Hrudka Jaroslav, Škultétyová Ivona, Holubec Michal, Galbová Kristína & Gregušová Veronika

  2. Department of Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37, Bratislava, Slovak Republic

    Mackuľak Tomáš

Authors
  1. Stanko Štefan
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  2. Hrudka Jaroslav
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  3. Škultétyová Ivona
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  4. Holubec Michal
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  5. Galbová Kristína
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  6. Gregušová Veronika
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  7. Mackuľak Tomáš
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Correspondence to Stanko Štefan.

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Štefan, S., Jaroslav, H., Ivona, Š. et al. CFD analysis of experimental adjustments on wastewater treatment sedimentation tank inflow zone. Monatsh Chem 148, 585–591 (2017). https://doi.org/10.1007/s00706-017-1927-7

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  • DOI: https://doi.org/10.1007/s00706-017-1927-7

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