Distinct membrane fouling characteristics of anammox MBR with low NO2−-N/NH4+-N ratio
- Author
- Chukuan Jiang, Xi Tang, Fan Feng, Jiangwei Zhao, Zhigong Liu, Caiyan Qu, Keshab K. Adhikary (UGent) , Di Wu (UGent) and Chong-Jian Tang
- Organization
- Abstract
- The bacterial growth and death, and extracellular polymeric substances (EPS) and soluble microbial products (SMP) in aerobic membrane bioreactor (MBR) cause severe membrane fouling. Anammox bacteria grow slowly but produce much EPS and SMP. Therefore, the membrane fouling characteristic of anammox MBR is still indistinct. A NO2--N/ NH4+-N < 1.0 into in the influent of an anammox MBR applies to investigate: 1) the slowest growing anammox bacteria (Candidatus Jettenia) could be enriched or not; 2) its membrane fouling characteristic. Results showed that Candidatus Jettenia successfully accumulated from 0.01% to 26.19%. The fouling characteristic of anammox MBR was entirely different from other MBRs. Firstly, obvious low transmembrane pressure (< 4 KPa, 125 days) and low amount of foulants (0.22 gVSS/m(2)) might result from N2 production and the slow-growing Candidatus Jettenia. Secondly, the analysis of the components of membrane foulants indicated that polysaccharides of SMP in the gel layer and pore foulants were the key factors affecting membrane fouling. Finally, the large particle size of foulants (200 mu m) might be caused by anammox bacteria living inside the foulants under anaerobic conditions. This study provides systematic insights into membrane characteristics of anammox MBR and a basis for the enrichment of anammox bacteria by MBR.
- Keywords
- Pollution, Waste Management and Disposal, Environmental Chemistry, Environmental Engineering, Anammox, Start-up, Anammox enrichment, Membrane fouling, Low TMP, SMP-PS, Anammox enrichment, Membrane fouling, SOLUBLE MICROBIAL PRODUCTS, START-UP, BIOREACTORS MBRS, UASB REACTORS, PERFORMANCE, BACTERIA, NITROGEN, REMOVAL, SLUDGE, QUANTIFICATION
Downloads
-
(...).pdf
- full text (Author's original)
- |
- UGent only
- |
- |
- 1.84 MB
Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-8733928
- MLA
- Jiang, Chukuan, et al. “Distinct Membrane Fouling Characteristics of Anammox MBR with Low NO2−-N/NH4+-N Ratio.” SCIENCE OF THE TOTAL ENVIRONMENT, vol. 817, 2022, doi:10.1016/j.scitotenv.2022.152994.
- APA
- Jiang, C., Tang, X., Feng, F., Zhao, J., Liu, Z., Qu, C., … Tang, C.-J. (2022). Distinct membrane fouling characteristics of anammox MBR with low NO2−-N/NH4+-N ratio. SCIENCE OF THE TOTAL ENVIRONMENT, 817. https://doi.org/10.1016/j.scitotenv.2022.152994
- Chicago author-date
- Jiang, Chukuan, Xi Tang, Fan Feng, Jiangwei Zhao, Zhigong Liu, Caiyan Qu, Keshab K. Adhikary, Di Wu, and Chong-Jian Tang. 2022. “Distinct Membrane Fouling Characteristics of Anammox MBR with Low NO2−-N/NH4+-N Ratio.” SCIENCE OF THE TOTAL ENVIRONMENT 817. https://doi.org/10.1016/j.scitotenv.2022.152994.
- Chicago author-date (all authors)
- Jiang, Chukuan, Xi Tang, Fan Feng, Jiangwei Zhao, Zhigong Liu, Caiyan Qu, Keshab K. Adhikary, Di Wu, and Chong-Jian Tang. 2022. “Distinct Membrane Fouling Characteristics of Anammox MBR with Low NO2−-N/NH4+-N Ratio.” SCIENCE OF THE TOTAL ENVIRONMENT 817. doi:10.1016/j.scitotenv.2022.152994.
- Vancouver
- 1.Jiang C, Tang X, Feng F, Zhao J, Liu Z, Qu C, et al. Distinct membrane fouling characteristics of anammox MBR with low NO2−-N/NH4+-N ratio. SCIENCE OF THE TOTAL ENVIRONMENT. 2022;817.
- IEEE
- [1]C. Jiang et al., “Distinct membrane fouling characteristics of anammox MBR with low NO2−-N/NH4+-N ratio,” SCIENCE OF THE TOTAL ENVIRONMENT, vol. 817, 2022.
@article{8733928,
abstract = {{The bacterial growth and death, and extracellular polymeric substances (EPS) and soluble microbial products (SMP) in aerobic membrane bioreactor (MBR) cause severe membrane fouling. Anammox bacteria grow slowly but produce much EPS and SMP. Therefore, the membrane fouling characteristic of anammox MBR is still indistinct. A NO2--N/ NH4+-N < 1.0 into in the influent of an anammox MBR applies to investigate: 1) the slowest growing anammox bacteria (Candidatus Jettenia) could be enriched or not; 2) its membrane fouling characteristic. Results showed that Candidatus Jettenia successfully accumulated from 0.01% to 26.19%. The fouling characteristic of anammox MBR was entirely different from other MBRs. Firstly, obvious low transmembrane pressure (< 4 KPa, 125 days) and low amount of foulants (0.22 gVSS/m(2)) might result from N2 production and the slow-growing Candidatus Jettenia. Secondly, the analysis of the components of membrane foulants indicated that polysaccharides of SMP in the gel layer and pore foulants were the key factors affecting membrane fouling. Finally, the large particle size of foulants (200 mu m) might be caused by anammox bacteria living inside the foulants under anaerobic conditions. This study provides systematic insights into membrane characteristics of anammox MBR and a basis for the enrichment of anammox bacteria by MBR.}},
articleno = {{152994}},
author = {{Jiang, Chukuan and Tang, Xi and Feng, Fan and Zhao, Jiangwei and Liu, Zhigong and Qu, Caiyan and Adhikary, Keshab K. and Wu, Di and Tang, Chong-Jian}},
issn = {{0048-9697}},
journal = {{SCIENCE OF THE TOTAL ENVIRONMENT}},
keywords = {{Pollution,Waste Management and Disposal,Environmental Chemistry,Environmental Engineering,Anammox,Start-up,Anammox enrichment,Membrane fouling,Low TMP,SMP-PS,Anammox enrichment,Membrane fouling,SOLUBLE MICROBIAL PRODUCTS,START-UP,BIOREACTORS MBRS,UASB REACTORS,PERFORMANCE,BACTERIA,NITROGEN,REMOVAL,SLUDGE,QUANTIFICATION}},
language = {{eng}},
pages = {{8}},
title = {{Distinct membrane fouling characteristics of anammox MBR with low NO2−-N/NH4+-N ratio}},
url = {{http://doi.org/10.1016/j.scitotenv.2022.152994}},
volume = {{817}},
year = {{2022}},
}
- Altmetric
- View in Altmetric
- Web of Science
- Times cited: