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Updated: Jun 6, 2026

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities

Published on: December 25, 2015

Modelling a full scale membrane bioreactor using Activated Sludge Model No.1: challenges and solutions.

F Delrue¹, J M Choubert, A E Stricker

¹Cemagref, UR QELY, F-69336 Lyon Cedex 09, France. florian.delrue@cemagref.fr

Water Science and Technology : a Journal of the International Association on Water Pollution Research

|November 16, 2010

Summary

This summary is machine-generated.

This study calibrated the Activated Sludge Model No. 1 (ASM1) for a full-scale membrane bioreactor (MBR). The model accurately predicted mixed liquor suspended solids despite challenges in wastewater characterization and oxygen transfer calibration.

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Area of Science:

Environmental Engineering
Biotechnology
Wastewater Treatment

Background:

Membrane bioreactors (MBRs) are advanced wastewater treatment systems.
Accurate modeling is crucial for optimizing MBR performance.
The Activated Sludge Model No. 1 (ASM1) is a common tool for simulating biological wastewater treatment.

Purpose of the Study:

To calibrate the ASM1 model for a full-scale MBR.
To investigate the impact of complex aeration systems on model calibration.
To assess the model's predictive capability for sludge production and quality.

Main Methods:

Wastewater characterization and fractionation.
Monitoring of mixed liquor volatile suspended solids (MLVSS) and mixed liquor suspended solids (MLSS).
Calibration and validation of ASM1 parameters, including biomass kinetics and oxygen transfer.

Main Results:

Wastewater fractionation required adjustment based on sludge production rates.
MLVSS and MLSS were accurately predicted during calibration and validation.
Simultaneous nitrification and denitrification due to complex aeration complicated oxygen transfer calibration.

Conclusions:

A calibrated ASM1 model provided satisfactory results for the MBR.
Model performance decreased during validation due to changing aeration configurations.
This study represents the first simulation of a full-scale MBR plant using ASM1.