PMID- 38145846
OWN - NLM
STAT- MEDLINE
DCOM- 20240129
LR  - 20240204
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 350
DP  - 2024 Feb
TI  - Simultaneous nitrogen and phosphorus removal through an integrated 
      partial-denitrification/anammox process in a single UAFB system.
PG  - 141040
LID - S0045-6535(23)03310-6 [pii]
LID - 10.1016/j.chemosphere.2023.141040 [doi]
AB  - With the aim of obtaining enhanced nitrogen removal and phosphate recovery in 
      mainstream sewage, we examined an integrated partial-denitrification/anaerobic 
      ammonia oxidation (PD/A) process over a period of 189 days to accomplish this 
      goal. An up-flow anaerobic fixed-bed reactor (UAFB) used in the integrated PD/A 
      process was started up with anammox sludge inoculated and the influent 
      composition controlled. Results showed that the system achieved a phosphorus 
      removal efficiency of 82% when the influent concentration reached 12.0 mg/L. 
      Batch tests demonstrated that stable and efficient removal of chemical oxygen 
      demand (COD), nitrogen, and phosphorus was achieved at a COD/NO(3)(-)-N ratio of 
      3.5. Scanning electron microscope (SEM) and X-ray diffraction (XRD) analysis 
      indicated that hydroxyapatite was the main crystal in the biofilm. Furthermore, 
      substrate variation along the axial length of UAFB indicated that partial 
      denitrification and anammox primarily took place near the reactor's bottom. 
      According to a microbiological examination, 0.4% of the PD/A process's 
      microorganisms were anaerobic ammonia oxidizing bacteria (AnAOB). Ca. Brocadia, 
      Ca. Kuenenia, and Ca. Jettenia served as the principal AnAOB generals in the 
      system. Thauera, Candidatus Accumulibacter, Pseudomonas, and Acinetobacter, which 
      together accounted for 27% of the denitrifying and phosphorus-accumulating 
      bacteria, were helpful in advanced nutrient removal. Therefore, the combined PD/A 
      process can be a different option in the future for sewage treatment to achieve 
      contemporaneous nutrient removal.
CI  - Copyright (c) 2023 Elsevier Ltd. All rights reserved.
FAU - Wan, Junfeng
AU  - Wan J
AD  - School of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, PR 
      China; Henan International Joint Laboratory of Environment and Resources, 
      Zhengzhou, 450001, PR China. Electronic address: wanjunfeng@zzu.edu.cn.
FAU - Zhang, Zixuan
AU  - Zhang Z
AD  - School of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, PR 
      China.
FAU - Li, Pei
AU  - Li P
AD  - School of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, PR 
      China.
FAU - Ma, Yifei
AU  - Ma Y
AD  - School of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, PR 
      China.
FAU - Li, Haisong
AU  - Li H
AD  - School of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, PR 
      China; Henan International Joint Laboratory of Environment and Resources, 
      Zhengzhou, 450001, PR China.
FAU - Guo, Qiong
AU  - Guo Q
AD  - School of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, PR 
      China; Henan International Joint Laboratory of Environment and Resources, 
      Zhengzhou, 450001, PR China. Electronic address: guoqiong@zzu.edu.cn.
FAU - Wang, Yan
AU  - Wang Y
AD  - School of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, PR 
      China; Henan International Joint Laboratory of Environment and Resources, 
      Zhengzhou, 450001, PR China.
FAU - Dagot, Christophe
AU  - Dagot C
AD  - GRESE EA 4330, Universite de Limoges, 123 Avenue Albert Thomas, F-87060, Limoges, 
      Cedex, France; INSERM, U1092, Limoges, France.
LA  - eng
PT  - Journal Article
DEP - 20231223
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Sewage)
RN  - 0 (Wastewater)
RN  - 27YLU75U4W (Phosphorus)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - *Sewage/chemistry
MH  - *Wastewater
MH  - Denitrification
MH  - Anaerobic Ammonia Oxidation
MH  - Phosphorus
MH  - Nitrogen
MH  - Bioreactors/microbiology
MH  - Oxidation-Reduction
OTO - NOTNLM
OT  - Mainstream sewage
OT  - Nitrogen and phosphorus removal
OT  - Partial-denitrification/anammox
OT  - Start-up
OT  - UAFB
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2023/12/26 00:42
MHDA- 2024/01/29 06:44
CRDT- 2023/12/25 19:26
PHST- 2023/09/06 00:00 [received]
PHST- 2023/11/22 00:00 [revised]
PHST- 2023/12/23 00:00 [accepted]
PHST- 2024/01/29 06:44 [medline]
PHST- 2023/12/26 00:42 [pubmed]
PHST- 2023/12/25 19:26 [entrez]
AID - S0045-6535(23)03310-6 [pii]
AID - 10.1016/j.chemosphere.2023.141040 [doi]
PST - ppublish
SO  - Chemosphere. 2024 Feb;350:141040. doi: 10.1016/j.chemosphere.2023.141040. Epub 
      2023 Dec 23.