Dynamic modeling of nutrient removal by a MBR operated at elevated temperatures

M. Sarioglu, N. Sayi-Ucar, E. Cokgor, D. Orhon, M. C.M. van Loosdrecht, G. Insel*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


The process performance of a MBR operated on municipal sewage at elevated temperatures was evaluated by dynamic modeling. The enhanced biological phosphorus removal (EBPR) performance varied from 40% to 95% with process temperature ranging from 24 to 38 °C. The respective maximum substrate uptake rate (qPHA) was estimated at 1.5 gCODS/gCODX.day−1 for Glycogen Accumulating Organisms (GAO) and 4.7 gCODS/gCODX.day−1 for Phosphate Accumulating Organisms (PAO) with Arrhenius coefficients (θ) for GAOs and PAOs of 1.06 and 1.04 respectively. With these parameters the effluent PO4 levels of the MBR operated for 450 days could be well described. In addition, the impact of mesophilic conditions and low influent P/VFA levels on GAO proliferation was evaluated under dynamic process conditions. Nitrification process was temporarily impaired at high temperatures around 38 °C. Simulations revealed that the contribution of the anoxic reactor to the total overall denitrification was limited to 40%The contribution of simultaneous nitrification and denitrification (SNdN) process to the denitrification was around 40–50% depending upon dissolved oxygen levels in aerobic and MBR tanks. The large contribution of SNdN was due to gas/liquid mass transfer limitation conditions mediated by high mixed liquor viscosities (20–35 mPa.S) in MBR system. The membrane flux was 43 L/m2/h corresponding to the specific permeability (K) of 413 L/m2/h/bar at 38 °C.

Original languageEnglish
Pages (from-to)420-428
Number of pages9
JournalWater Research
Publication statusPublished - 2017

Bibliographical note

Publisher Copyright:
© 2017


The authors gratefully thank Dubai Municipality for pilot plant operation and Hitachi Company for providing the MBR system. A part of this project was supported by Research Foundation of Istanbul Technical University (37050), as a PhD study of Mrs. Nilay SAYI UCAR.

FundersFunder number
Dubai Municipality for pilot plant operation and Hitachi Company
Istanbul Teknik Üniversitesi37050


    • EBPR
    • GAOs
    • MBR
    • PAOs
    • Simultaneous nitrification and denitrification
    • Temperature


    Dive into the research topics of 'Dynamic modeling of nutrient removal by a MBR operated at elevated temperatures'. Together they form a unique fingerprint.

    Cite this