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Author:

Zhao, Qi (Zhao, Qi.) | Li, Xiyao (Li, Xiyao.) | Zhang, Liang (Zhang, Liang.) | Li, Jianwei (Li, Jianwei.) | Jia, Tipei (Jia, Tipei.) | Zhao, Yang (Zhao, Yang.) | Wang, Luyao (Wang, Luyao.) | Peng, Yongzhen (Peng, Yongzhen.)

Indexed by:

Scopus SCIE

Abstract:

Applying anaerobic ammonium oxidation (anammox) in municipal wastewater treatment plants (MWWTPs) can unlock significant energy and resource savings. However, its practical implementation encounters significant challenges, particularly due to its limited compatibility with carbon and phosphorus removal processes. This study established a pilot-scale plant featuring a modified anaerobic-anoxic-oxic (A(2)O) process and operated continuously for 385 days, treating municipal wastewater of 50 m(3)/d. For the first time, we propose a novel concept of partial denitrifying phosphorus removal coupling with anammox (PDPRA), leveraging denitrifying phosphorus-accumulating organisms (DPAOs) as NO2- suppliers for anammox. N-15 stable isotope tracing revealed that the PDPRA enabled an anammox reaction rate of 6.14 +/- 0.18 mu mol-N/(Lh), contributing 57.4 % to total inorganic nitrogen (TIN) removal. Metagenomic sequencing and 16S rRNA amplicon sequencing unveiled the co-existence and co-prosperity of anammox bacteria and DPAOs, with Candidatus Brocadia being highly enriched in the anoxic biofilms at a relative abundance of 2.46 +/- 0.52 %. Finally, the PDPRA facilitated the synergistic conversion and removal of carbon, nitrogen, and phosphorus nutrients, achieving remarkable removal efficiencies of chemical oxygen demand (COD, 83.5 +/- 5.3 %), NH4+ (99.8 +/- 0.7 %), TIN (77.1 +/- 3.6 %), and PO43- (99.3 +/- 1.6 %), even under challenging operational conditions such as low temperature of 11.7 degrees C. The PDPRA offers a promising solution for reconciling the mainstream anammox and the carbon and phosphorus removal, shedding fresh light on the paradigm shift of MWWTPs in the near future.

Keyword:

Mainstream anammox Nutrient removal Pilot-scale study Municipal wastewater Denitrifying phosphorus removal

Author Community:

  • [ 1 ] [Zhao, Qi]Beijing Univ Technol, Engn Res Ctr Beijing, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 2 ] [Li, Xiyao]Beijing Univ Technol, Engn Res Ctr Beijing, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 3 ] [Zhang, Liang]Beijing Univ Technol, Engn Res Ctr Beijing, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 4 ] [Li, Jianwei]Beijing Univ Technol, Engn Res Ctr Beijing, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 5 ] [Jia, Tipei]Beijing Univ Technol, Engn Res Ctr Beijing, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 6 ] [Zhao, Yang]Beijing Univ Technol, Engn Res Ctr Beijing, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 7 ] [Wang, Luyao]Beijing Univ Technol, Engn Res Ctr Beijing, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 8 ] [Peng, Yongzhen]Beijing Univ Technol, Engn Res Ctr Beijing, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 9 ] [Peng, Yongzhen]Beijing Univ Technol, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Peng, Yongzhen]Beijing Univ Technol, Beijing 100124, Peoples R China

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Source :

WATER RESEARCH

ISSN: 0043-1354

Year: 2024

Volume: 253

1 2 . 8 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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