Modeling of microbial growth of Ralstonia eutropha in biodegradation process of phenol in an airlift bioreactor with concentric net draft

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Jalilnejad Elham; hosseini Seyedeh mozhgan; Nalband Mehran

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Journal: JOURNAL OF SEPARATION SCIENCE AND ENGINEERING Year:2019 | Volume:11 | Issue:1 Page(s): 64-75

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Title

Modeling of microbial growth of Ralstonia eutropha in biodegradation process of phenol in an airlift bioreactor with concentric net draft

Author(s)

Jalilnejad Elham | hosseini Seyedeh mozhgan | Nalband Mehran | Issue Writer Certificate

Keywords

CFD SimulationQ1

biomass growthQ1

Airlift ReactorQ1

Phenol biodegradationQ1

Haldane modelQ1

Abstract

According to the experimental observations, Airlift Reactor with net draft tube provided a suitable medium for microbial reactions, hence improved process efficiency and is a recommended bioreactor for wastewater bio-treatment. However, modeling and simulation of biodegradation process in this special bioreactor seems essential to proper design and optimization of the performance of the reactor. In this work, the biodegradation process of phenol with Ralstonia eutropha cells and microbial growth is simulated in a lab-scale Airlift Reactor with net draft tube using computational fluid dynamics (CFD). The k-ɛ model, as the most common model used for description of turbulent flow, is used for the simulation of the present bubbly flow. Flow pathlines in the riser and downcomer sections of the Airlift Reactor is simulated and the phenol concentration variations and biomass distribution in different inlet conditions were demonstrated by simulated concentrations contours. Good agreement was find between simulation and experimental results which validated the model and proved the accuracy of the simulation.

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APA: Copy

Jalilnejad, Elham, hosseini, Seyedeh mozhgan, & Nalband, Mehran. (2019). Modeling of microbial growth of Ralstonia eutropha in biodegradation process of phenol in an airlift bioreactor with concentric net draft. JOURNAL OF SEPARATION SCIENCE AND ENGINEERING, 11(1 ), 64-75. SID. https://sid.ir/paper/150108/en

Vancouver: Copy

Jalilnejad Elham, hosseini Seyedeh mozhgan, Nalband Mehran. Modeling of microbial growth of Ralstonia eutropha in biodegradation process of phenol in an airlift bioreactor with concentric net draft. JOURNAL OF SEPARATION SCIENCE AND ENGINEERING[Internet]. 2019;11(1 ):64-75. Available from: https://sid.ir/paper/150108/en

IEEE: Copy

Elham Jalilnejad, Seyedeh mozhgan hosseini, and Mehran Nalband, “Modeling of microbial growth of Ralstonia eutropha in biodegradation process of phenol in an airlift bioreactor with concentric net draft,” JOURNAL OF SEPARATION SCIENCE AND ENGINEERING, vol. 11, no. 1 , pp. 64–75, 2019, [Online]. Available: https://sid.ir/paper/150108/en

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