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Updated: Jun 22, 2026

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
Published on: December 25, 2015
Roles of polyurethane foam in aerobic moving and fixed bed bioreactors
Wenshan Guo1, Huu-Hao Ngo, Fonny Dharmawan
1School of Civil and Environmental Engineering, University of Technology Sydney, Broadway, NSW 2007, Australia.
Abstract:
The aim of this study was to investigate the performance of sponge as an active mobile carrier for attached-growth biomass in three typical types of aerobic bioreactors to treat a high strength synthetic wastewater. The results show that sponge thickness deteriorated the organic and nutrient removal and 1cm is the optimum thickness for fixed-bed sponge biofilter (SBF). The sponge volume had significant impact on phosphorus removal rather than organic or nitrogen removal, and 20% volume of sponge could achieve 100% T-P removal within 3h in a sponge batch reactor (SBR). When sponge coupled with submerged membrane bioreactor (SMBR), the single system show outstanding ammonium (100% at filtration flux of 10 and 15 L/m(2)h) and phosphorus (> 91% at all fluxes range) removal with optimum pH range of 6-7.
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