Granulation characteristics of anammox sludge in response to different signal-molecule-stimulants; mediated through programmed cell death
Copyright © 2024 Elsevier Ltd. All rights reserved..
During the anammox process, mitigation of biomass washout to increase sludge retention is an important parameter of process efficiency. Signal molecular stimulants (SMS) initiate the sludge granulations controlled by programmed cell death (PCD) of microorganisms. In this study, the aerobic granular sludge (AGS), cell fragments, extracellular polymeric substances (EPS), and AGS process effluent were tested as SMS to identify their effect on anammox granulation. The results showed that the addition of SMS increased the nitrogen removal efficiency to varying degrees, whereas the addition of AGS process supernatant, as SMS, increased the ammonia removal efficiency up to 96%. The addition of SMS was also found to increase EPS production and contributed to sludge granulation. In this process, the proportion of PCD increased and both Gaiella and Denitratisoma abundance increased from 3.54% to 5.59%, and from 1.8% to 3.42%, respectively. In conclusion, PCD was found important to increase anaerobic ammonia oxidation performance through the granulation mechanism.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2024 |
|---|---|
| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:354 |
|---|---|
| Enthalten in: |
Chemosphere - 354(2024) vom: 05. Apr., Seite 141497 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Yang, Zifeng [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
7664-41-7 |
|---|
| Anmerkungen: |
Date Completed 08.04.2024 Date Revised 08.04.2024 published: Print-Electronic Citation Status MEDLINE |
|---|
| doi: |
10.1016/j.chemosphere.2024.141497 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM369427262 |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM369427262 | ||
| 003 | DE-627 | ||
| 005 | 20240408232606.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 240308s2024 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1016/j.chemosphere.2024.141497 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1369.xml |
| 035 | |a (DE-627)NLM369427262 | ||
| 035 | |a (NLM)38452981 | ||
| 035 | |a (PII)S0045-6535(24)00390-4 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Yang, Zifeng |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Granulation characteristics of anammox sludge in response to different signal-molecule-stimulants; mediated through programmed cell death |
| 264 | 1 | |c 2024 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 08.04.2024 | ||
| 500 | |a Date Revised 08.04.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2024 Elsevier Ltd. All rights reserved. | ||
| 520 | |a During the anammox process, mitigation of biomass washout to increase sludge retention is an important parameter of process efficiency. Signal molecular stimulants (SMS) initiate the sludge granulations controlled by programmed cell death (PCD) of microorganisms. In this study, the aerobic granular sludge (AGS), cell fragments, extracellular polymeric substances (EPS), and AGS process effluent were tested as SMS to identify their effect on anammox granulation. The results showed that the addition of SMS increased the nitrogen removal efficiency to varying degrees, whereas the addition of AGS process supernatant, as SMS, increased the ammonia removal efficiency up to 96%. The addition of SMS was also found to increase EPS production and contributed to sludge granulation. In this process, the proportion of PCD increased and both Gaiella and Denitratisoma abundance increased from 3.54% to 5.59%, and from 1.8% to 3.42%, respectively. In conclusion, PCD was found important to increase anaerobic ammonia oxidation performance through the granulation mechanism | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Anammox granulation | |
| 650 | 4 | |a Decay | |
| 650 | 4 | |a Programmed cell death | |
| 650 | 4 | |a Signal molecular stimulants | |
| 650 | 7 | |a Sewage |2 NLM | |
| 650 | 7 | |a Ammonia |2 NLM | |
| 650 | 7 | |a 7664-41-7 |2 NLM | |
| 650 | 7 | |a Nitrogen |2 NLM | |
| 650 | 7 | |a N762921K75 |2 NLM | |
| 700 | 1 | |a Wang, Xueping |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Deshuang |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Guanghui |e verfasserin |4 aut | |
| 700 | 1 | |a Ma, Kang |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Peiyu |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Yanmin |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Chemosphere |d 1994 |g 354(2024) vom: 05. Apr., Seite 141497 |w (DE-627)NLM074698028 |x 1879-1298 |7 nnns |
| 773 | 1 | 8 | |g volume:354 |g year:2024 |g day:05 |g month:04 |g pages:141497 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1016/j.chemosphere.2024.141497 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 354 |j 2024 |b 05 |c 04 |h 141497 | ||