Related Experiment Video
Updated: Oct 7, 2025

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
Published on: December 25, 2015
[Effect of Temperature on ANAMMOX Process in Sequencing Batch Biofilm Reactors: Nitrogen Removal Performance and
Shan Wu1, Shu-Ya Wang1,2, Fen Wang1
1School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China.
Abstract:
For the ambient and low-temperature operation of the anaerobic ammonium oxidation (ANAMMOX) process, sequence batch biofilm reactors (SBBR) with non-woven fabric and modified polyurethane foam as carriers, respectively, were used to treat nitrogenous wastewater. Nitrogen removal performances of both reactors were investigated while the temperature decreased from 35℃ to 15℃. When the nitrogen loading rate (NLR) was 110 mg·(L·d)-1, the average total nitrogen (TN) removal rate of the non-woven fabric reactor increased from 71.16% (35℃) to 76.19% (30℃) and then decreased to 61.11% (15℃). The average TN removal rate of the modified polyurethane foam reactor increased from 78.71% (35℃) to 81.75% (20℃) and then decreased to 75.68% (15℃). Compared with the non-woven fabric, the modified polyurethane foam provided a more stable nitrogen removal performance and could be used as the preferred carrier. High-throughput sequencing of the modified polyurethane foam biofilm indicated that Candidatus Kuenenia was the dominant ANAMMOX genus, with relative abundances of 8% (35℃), 5% (25℃), and 16% (15℃). Candidatus Kuenenia still grew and enriched at low temperatures. The decrease in temperature significantly affected the biofilm microbial community structure.
More Related Videos
Related Concept Videos
Metabolism of Chemolithotrophs
Factors Influencing Microbial Growth: Temperature
Physical Methods for Controlling Microbial Growth: Temperature
Hyperthermophilic Bacteria
Effect of Temperature Change on Reaction Rate
Diversity of Archaea I

