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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/wer.1539
|2 doi
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|a pubmed24n1071.xml
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|a (DE-627)NLM321540670
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|a (NLM)33595115
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Zhang, Jing
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Effects of AHLs inhibitors and exogenous AHLs on the stability and activity of Anammox granules at low temperatures
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 08.09.2021
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|a Date Revised 08.09.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2021 Water Environment Federation.
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|a This study investigated the relationship between acyl homoserine lactones (AHLs)-based quorum sensing (QS) and the properties of Anammox granular sludge at low temperatures (11-23°C). Results indicated that adding different concentrations of AHLs inhibitors reduced the content of N-hexanoyl-dl-homoserine lactone (C6-HSL) and N-octanoyl-dl-homoserinelactone (C8-HSL) in Anammox granules on different degrees at different operation temperatures, which led to the deterioration of granules stability and activity. The important role of endogenous C6-HSL and C8-HSL signals in maintaining Anammox granular sludge stability and activity in low-temperature conditions was revealed. In addition, in the process of reducing operation temperatures, another type of AHL signal (N-(3-oxooctanoyl)-l-homoserine lactone, 3OC8-HSL) was released by Anammox granules. The effects of exogenous C8-HSL on the strength, average diameter, and density of Anammox granules were closely related to the operation temperature. When the operation temperature ranged from 11°C to 16°C, the stability of granules could be significantly improved by exogenous C8-HSL. In addition, the addition of C6-HSL and 3OC8-HSL promoted the activity of Anammox granules when the operation temperatures of the reactors were 11-23°C. This study proposed a novel approach to improve the properties of Anammox granules at low temperatures from the perspective of QS. PRACTITIONER POINTS: Endogenous AHLs played an important role in maintaining the activity and stability of Anammox granules at 11-23°C. Exogenous C8-HSL improved the granules stability at the low temperature of 11-16°C. Exogenous C6-HSL or 3OC8-HSL promoted the granules activity at 11-23°C. Supply a novel way to improve the Anammox granules performance at low temperatures
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|a Journal Article
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|a Anammox granules
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|a acyl homoserine lactones (AHLs)
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|a extracellular polymeric substances (EPS)
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4 |
|a low temperatures
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|a Acyl-Butyrolactones
|2 NLM
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| 650 |
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|a Sewage
|2 NLM
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| 700 |
1 |
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|a Zhang, Lin-Hua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Peng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a He, Jie-Ya
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Jun
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 93(2021), 9 vom: 15. Sept., Seite 1576-1588
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
1 |
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|g volume:93
|g year:2021
|g number:9
|g day:15
|g month:09
|g pages:1576-1588
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|u http://dx.doi.org/10.1002/wer.1539
|3 Volltext
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