Related Experiment Video
Updated: Jun 21, 2026

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
Published on: December 25, 2015
Modeling integrated fixed-film activated sludge and moving-bed biofilm reactor systems II: evaluation
Joshua P Boltz1, Bruce R Johnson, Glen T Daigger
1CH2M HILL, Inc., Tampa, Florida 33607, USA. jboltz@ch2m.com
Abstract:
A steady-state model presented by Boltz, Johnson, Daigger, and Sandino (2009) describing integrated fixed-film activated sludge (IFAS) and moving-bed biofilm reactor (MBBR) systems has been demonstrated to simulate, with reasonable accuracy, four wastewater treatment configurations with published operational data. Conditions simulated include combined carbon oxidation and nitrification (both IFAS and MBBR), tertiary nitrification MBBR, and post denitrification IFAS with methanol addition as the external carbon source. Simulation results illustrate that the IFAS/MBBR model is sufficiently accurate for describing ammonia-nitrogen reduction, nitrate/nitrite-nitrogen reduction and production, biofilm and suspended biomass distribution, and sludge production.
Related Concept Videos
Bioreactor Design and Operational System
Bioreactor Controls-II
Bioreactor Controls-I
Biological Treatment of Effluent and Waste Water
Microbial Wastewater Treatment

