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.
This is a preview of subscription content, access via your institution.
Buy single article
Instant access to the full article PDF.
Price excludes VAT (USA)
Tax calculation will be finalised during checkout.
Baicang L, Ma J, Luo L, Bai Y, Wang S, Zhang J (2010) J Environ Eng 136:501
Burger R, Diehl S, Nopens I (2011) Water Res 45:2247
Carbery JB, Englande AJ (1983) Sludge characteristic and behavior. Martinus Nijhoff Publishers, The Hague, p 441
Deininger A, Holthausen E, Wilderer PA (1998) Water Res 32:2951
Gorb Y, Mierka O (2013) J Comput Appl Math 270:443
Holubec M (2013) CFD analysis tools for analyze WWTP objects. Dissertation thesis, Slovak University of Technology, Faculty of Civil Engineering, Slovakia
Hrudka J (2016) Analysis of waste water treatment plant objects. Dissertation thesis, Slovak University of Technology, Faculty of Civil Engineering, Slovakia
Pollert J, Balihar O, Pavlíčková D, Todt V (2010) Optimalizace sekundárnich sedimentačních nádrží ÚČOV Praha vice fázovým modelem. In: ANSYS 2010, Praha
Ramin E, Wagner DS, Yde L, Binning P, Rasmussen MR, Mikkelsen PS, Plósz BG (2014) Water Res 66:447
Shahrokh M, Rostami F, Said MAM, Yazdi SRS, Syafalni S (2013) Water Environ J 27:484
Shahrokh M, Rostami F, Said MAM, Yazdi SRS, Syafalni S (2013) J Hydraul Eng 139:88
Wicklein E, Batstone DJ, Ducoste J, Laurent J, Griborio A, Wicks J, Saunders S, Samstag R, Potier O, Nopens I (2016) Water Sci Technol 73:969
Wei W, Bai C, Cai Y, Liu Y (2015) Yingyong Lixue Xuebao 32:788
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.
About this article
Cite this article
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