Simultaneously advanced removal of nitrogen and phosphorus in a biofilter packed with ZVI/PHBV/sawdust composite : Deciphering the succession of dominant bacteria and keystone species
Copyright © 2022 Elsevier Ltd. All rights reserved..
In this study, a biofilter was developed with a ZVI/PHBV/sawdust (ZPS) composite for treating simulative secondary effluent from wastewater treatment plants. Results showed that effluent concentrations of NO3--N and TP in the ZPS biofilter were stable below 2.0 mg/L and 0.1 mg/L, corresponding to 95% NO3--N removal and 99% TP removal, respectively. Microbial community analysis revealed that the transformation of dominant taxa from Dechloromonas to Clostridium sensu stricto_7 from 30 d to 120 d suggested that the ZVI-induced succession of dominant fermentation bacteria ensured the stable carbon supply for denitrification. Co-occurrence network analysis showed that the ZVI directly enhanced the interaction of microbial community. Fe-related bacteria occupied a key position in the rare species, which might maintain the function of iron-mediated organic matter decomposition and denitrification. These findings provide an alternative for advanced removal of nitrogen and phosphorus in biofilters packed with ZPS composites.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:347 |
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| Enthalten in: |
Bioresource technology - 347(2022) vom: 01. März, Seite 126724 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhou, Qi [VerfasserIn] |
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| Links: |
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| Themen: |
27YLU75U4W |
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| Anmerkungen: |
Date Completed 16.02.2022 Date Revised 07.12.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.biortech.2022.126724 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM33599797X |
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| 245 | 1 | 0 | |a Simultaneously advanced removal of nitrogen and phosphorus in a biofilter packed with ZVI/PHBV/sawdust composite |b Deciphering the succession of dominant bacteria and keystone species |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2022 Elsevier Ltd. All rights reserved. | ||
| 520 | |a In this study, a biofilter was developed with a ZVI/PHBV/sawdust (ZPS) composite for treating simulative secondary effluent from wastewater treatment plants. Results showed that effluent concentrations of NO3--N and TP in the ZPS biofilter were stable below 2.0 mg/L and 0.1 mg/L, corresponding to 95% NO3--N removal and 99% TP removal, respectively. Microbial community analysis revealed that the transformation of dominant taxa from Dechloromonas to Clostridium sensu stricto_7 from 30 d to 120 d suggested that the ZVI-induced succession of dominant fermentation bacteria ensured the stable carbon supply for denitrification. Co-occurrence network analysis showed that the ZVI directly enhanced the interaction of microbial community. Fe-related bacteria occupied a key position in the rare species, which might maintain the function of iron-mediated organic matter decomposition and denitrification. These findings provide an alternative for advanced removal of nitrogen and phosphorus in biofilters packed with ZPS composites | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Keystone species | |
| 650 | 4 | |a Network analysis | |
| 650 | 4 | |a Nitrogen and phosphorus removal | |
| 650 | 4 | |a Secondary effluent | |
| 650 | 4 | |a ZVI | |
| 650 | 7 | |a Polyesters |2 NLM | |
| 650 | 7 | |a Waste Water |2 NLM | |
| 650 | 7 | |a Phosphorus |2 NLM | |
| 650 | 7 | |a 27YLU75U4W |2 NLM | |
| 650 | 7 | |a Nitrogen |2 NLM | |
| 650 | 7 | |a N762921K75 |2 NLM | |
| 700 | 1 | |a Sun, Haimeng |e verfasserin |4 aut | |
| 700 | 1 | |a Jia, Lixia |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Weizhong |e verfasserin |4 aut | |
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