Feasibility of partial denitrification and anammox for removing nitrate and ammonia simultaneously in situ through synergetic interactions
Copyright © 2020. Published by Elsevier Ltd..
In this study, the single-stage partial denitrification-anammox (PD-A) process was started-up in 22 days in a lab-scale up-flow sludge blanket (UASB) reactor to treat wastewater containing NH4+-N and NO3--N simultaneously. The TN removal rate reached 97.08% with a low effluent TN of 10 mg/L. High-throughput sequencing results revealed the dominant bacterial strains were related to the genus of Thauera and Candidatus Kuenenia. The PD-A system was started-up based on the optimized PD process via inoculated exogenous anammox sludge attributing to the improvement of bacterial adaptation and co-existence by EPS. The PD process was realized in 18 days with the abundance of PD functional bacterium Thauera through fluctuated C/NO-3-N conditions. Moreover, the detrimental effects of starvation on anammox was weaker than that on PD bacteria. The PD-A process was expected to open a new possible perspective in designing NO3--N and NH4+-N wastewater treatment plants.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:320 |
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| Enthalten in: |
Bioresource technology - 320(2021), Pt B vom: 02. Jan., Seite 124390 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Han, Yi [VerfasserIn] |
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| Links: |
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| Themen: |
7664-41-7 |
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| Anmerkungen: |
Date Completed 15.12.2020 Date Revised 07.12.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.biortech.2020.124390 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Copyright © 2020. Published by Elsevier Ltd. | ||
| 520 | |a In this study, the single-stage partial denitrification-anammox (PD-A) process was started-up in 22 days in a lab-scale up-flow sludge blanket (UASB) reactor to treat wastewater containing NH4+-N and NO3--N simultaneously. The TN removal rate reached 97.08% with a low effluent TN of 10 mg/L. High-throughput sequencing results revealed the dominant bacterial strains were related to the genus of Thauera and Candidatus Kuenenia. The PD-A system was started-up based on the optimized PD process via inoculated exogenous anammox sludge attributing to the improvement of bacterial adaptation and co-existence by EPS. The PD process was realized in 18 days with the abundance of PD functional bacterium Thauera through fluctuated C/NO-3-N conditions. Moreover, the detrimental effects of starvation on anammox was weaker than that on PD bacteria. The PD-A process was expected to open a new possible perspective in designing NO3--N and NH4+-N wastewater treatment plants | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Microbial community | |
| 650 | 4 | |a Nitrogen removal | |
| 650 | 4 | |a Partial denitrification-anammox (PD-A) | |
| 650 | 4 | |a Single-stage UASB reactor | |
| 650 | 7 | |a Nitrates |2 NLM | |
| 650 | 7 | |a Sewage |2 NLM | |
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| 700 | 1 | |a Guo, Jianbo |e verfasserin |4 aut | |
| 700 | 1 | |a Song, Yuanyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Lu, Caicai |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Haibo |e verfasserin |4 aut | |
| 700 | 1 | |a Hou, Yanan |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Zhi |e verfasserin |4 aut | |
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