Modeling of substrate consumption by a biofilm on the surface of a rotating partially submerged disk

Pyl’nik, S. V.; Dueck, I. G.

doi:10.1134/s0040579511010088

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“…OF THE PROBLEM In the simplified form, the mathematical model [10][11][12][13] is formulated as four ordinary differential equations describing biochemical reactions in the bio film formed on a disk at the distance R from the rota tion axis and mass transfer between the biofilm and the surrounding medium:…”

Section: Mathematical Formulationmentioning

confidence: 99%

Startup simulation for a rotating biological contactor

Pyl’nik

Dueck

2012

Theor Found Chem Eng

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A model for a rotating biological contactor is developed that takes into account the MichaelisMenten kinetics, the submergence level of the disk, and its rotational speed. The aerobic nature of substrate processing and mass transfer between an aqueous medium and a biofilm are described. The model includes consideration of the erosion of the biofilm by flowing water. The variability of the biofilm thickness along the radius of the disk is taken into account. It is demonstrated how the steady state characteristics of the biore actor are reached under different bioreactor conditions.

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Section: Mathematical Formulationmentioning

confidence: 99%