Comparative Analysis on Microbial Characteristics of Aerobic Activated Sludge and Biofilm in Low-temperature A2O Process

Wenai Liu, Wenai Liu, Fan Wang, Fan Wang, Hua Kang, Hua Kang, Yiming Yan, Yiming Yan, Dejun Bian, Dejun Bian

2022

Abstract

In the low-temperature A 2 O coupling system, activated sludge and biofilm perform corresponding denitrification and phosphorus removal functions through the growth of specific microorganisms. The difference of microbial populations under different growth conditions is of great significance to the wastewater treatment effect. In this study, high-throughput sequencing technology was used to analyze the population differences of suspended activated sludge and attached biofilms in aerobic cells in the same environment, in order to analyze the pollutant removal mechanism. The results showed that the abundance and diversity of aerobic biofilm fillers were higher than that of aerobic activated sludge, the microorganisms in both biofilm and activated sludge mainly degrade organic matter. Both activated sludge and biofilm accumulated and domesticated a variety of high-abundance denitrification and phosphorus removal bacteria, but the distribution abundance of different bacteria in the two regions were different. The biofilm was rich in many denitrifying bacteria Dokdonella, Denitratisoma, and phosphorus-accumulating bacteria Candidatus_ Accumulibacter, and also enriched in Bacteroidetes_vadinHA17 with anaerobic phosphorus removal function; While, the activated sludge contained more Cloacibacterium, Lactococcus related to sugar metabolism, and enriched phosphorus accumulating bacteria Tetrasphaera, Candidatus_Accumulibacter, and aerobic denitrifying bacteria Phreatobacter, Aeromonas.

Paper Citation

in Harvard Style

Liu W., Wang F., Kang H., Yan Y. and Bian D. (2022). Comparative Analysis on Microbial Characteristics of Aerobic Activated Sludge and Biofilm in Low-temperature A2O Process. In Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB, ISBN 978-989-758-595-1, pages 70-74. DOI: 10.5220/0011180600003443

in Bibtex Style

@conference{icbeb22,
author={Wenai Liu and Fan Wang and Hua Kang and Yiming Yan and Dejun Bian},
title={Comparative Analysis on Microbial Characteristics of Aerobic Activated Sludge and Biofilm in Low-temperature A2O Process},
booktitle={Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB,},
year={2022},
pages={70-74},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011180600003443},
isbn={978-989-758-595-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB,
TI - Comparative Analysis on Microbial Characteristics of Aerobic Activated Sludge and Biofilm in Low-temperature A2O Process
SN - 978-989-758-595-1
AU - Liu W.
AU - Wang F.
AU - Kang H.
AU - Yan Y.
AU - Bian D.
PY - 2022
SP - 70
EP - 74
DO - 10.5220/0011180600003443