Acidogenic bacteria assisted biodegradation of nonylphenol in waste activated sludge during anaerobic fermentation for short-chain fatty acids production
Copyright © 2018 Elsevier Ltd. All rights reserved..
Nonylphenol (NP) biodegradation under anaerobic conditions is difficult. Here, enhancement of anaerobic NP biodegradation mainly by regulating the role of acidogenic bacteria during anaerobic fermentation of waste activated sludge (WAS) for short-chain fatty acids production is reported. The maximum degradation efficiency of NP (69.4%) was achieved under conditions of pH 10.0 and 10 mg/L Brij 35 within 8 d, which was nearly 3-fold of that in the control (24.6%). Mechanism exploration revealed that the bioavailability of NP and specific NP-degrading bacteria and their functional genes were advantageous to NP biodegradation with alkaline pH and surfactant. More importantly, acidogenic bacteria, the dominant functional bacteria in WAS fermentation systems, were demonstrated to be involved in NP anaerobic biodegradation by providing intermediate organic substrates, as well as through their intrinsic NP-degrading abilities. Possible pathways of NP biodegradation assisted by acidogenic bacteria during anaerobic fermentation were also proposed based on the detected metabolites.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:268 |
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| Enthalten in: |
Bioresource technology - 268(2018) vom: 01. Nov., Seite 692-699 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Duan, Xu [VerfasserIn] |
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| Links: |
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| Themen: |
79F6A2ILP5 |
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| Anmerkungen: |
Date Completed 17.10.2018 Date Revised 17.10.2018 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.biortech.2018.08.053 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM287828662 |
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| 500 | |a Date Revised 17.10.2018 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2018 Elsevier Ltd. All rights reserved. | ||
| 520 | |a Nonylphenol (NP) biodegradation under anaerobic conditions is difficult. Here, enhancement of anaerobic NP biodegradation mainly by regulating the role of acidogenic bacteria during anaerobic fermentation of waste activated sludge (WAS) for short-chain fatty acids production is reported. The maximum degradation efficiency of NP (69.4%) was achieved under conditions of pH 10.0 and 10 mg/L Brij 35 within 8 d, which was nearly 3-fold of that in the control (24.6%). Mechanism exploration revealed that the bioavailability of NP and specific NP-degrading bacteria and their functional genes were advantageous to NP biodegradation with alkaline pH and surfactant. More importantly, acidogenic bacteria, the dominant functional bacteria in WAS fermentation systems, were demonstrated to be involved in NP anaerobic biodegradation by providing intermediate organic substrates, as well as through their intrinsic NP-degrading abilities. Possible pathways of NP biodegradation assisted by acidogenic bacteria during anaerobic fermentation were also proposed based on the detected metabolites | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Acidogenic bacteria | |
| 650 | 4 | |a Anaerobic biodegradation | |
| 650 | 4 | |a Anaerobic fermentation | |
| 650 | 4 | |a Nonylphenol | |
| 650 | 4 | |a Waste activated sludge | |
| 650 | 7 | |a Fatty Acids, Volatile |2 NLM | |
| 650 | 7 | |a Phenols |2 NLM | |
| 650 | 7 | |a Sewage |2 NLM | |
| 650 | 7 | |a nonylphenol |2 NLM | |
| 650 | 7 | |a 79F6A2ILP5 |2 NLM | |
| 700 | 1 | |a Wang, Xiao |e verfasserin |4 aut | |
| 700 | 1 | |a Xie, Jing |e verfasserin |4 aut | |
| 700 | 1 | |a Feng, Leiyu |e verfasserin |4 aut | |
| 700 | 1 | |a Yan, Yuanyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Feng |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Qi |e verfasserin |4 aut | |
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| 773 | 1 | 8 | |g volume:268 |g year:2018 |g day:01 |g month:11 |g pages:692-699 |
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