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Author:

Wu, Lina (Wu, Lina.) | Xu, Jianda (Xu, Jianda.) | Xu, Jiayuan (Xu, Jiayuan.) | van Loosdrecht, Mark C.M. (van Loosdrecht, Mark C.M..) | Peng, Yongzhen (Peng, Yongzhen.)

Indexed by:

EI Scopus

Abstract:

The removal of nitrogen from the mature leachate landfills is a major challenge. In this study, a novel aeration control strategy combined with step-wise influent addition was used to successfully implement simultaneous partial nitrification, anaerobic ammonia oxidation and denitrification (SNAD) in a single-stage Sequencing Biofilm Batch Reactor (SBBR) used for nitrogen removal and carbon removal of mature landfill leachate with a low C/N ratio. The SNAD process was rapidly initiated by transitioning from aeration to aeration-anaerobic (OA) phases and stabilized under anaerobic-aeration-anoxic (AOA) conditions. The relative abundance of nitrite-oxidizing bacteria (NOB) in the reactor was consistently suppressed (4+-N up to 600.9 mg/L and COD/TIN of 2.3 ± 0.3, the system achieved 98.3 ± 1.1 % nitrogen removal efficiency and effluent TIN of 10.8 ± 1.3 mg N/L, demonstrating robust synergy among ammonia-oxidizing bacteria (AOB), anammox bacteria, and denitrifying bacteria (DNB). This strategy provides a scalable approach for SNAD system cultivation and sustainable treatment of mature landfill leachate. © 2025 Elsevier B.V.

Keyword:

Anodic oxidation Denitrification Candida Nitrification Nitrides Nitrogen removal

Author Community:

  • [ 1 ] [Wu, Lina]School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing; 100044, China
  • [ 2 ] [Wu, Lina]Key Laboratory of Urban Stormwater System and Water Environment (Ministry of Education), Beijing University of Civil Engineering and Architecture, Beijing; 100044, China
  • [ 3 ] [Xu, Jianda]School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing; 100044, China
  • [ 4 ] [Xu, Jianda]Key Laboratory of Urban Stormwater System and Water Environment (Ministry of Education), Beijing University of Civil Engineering and Architecture, Beijing; 100044, China
  • [ 5 ] [Xu, Jiayuan]School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing; 100044, China
  • [ 6 ] [Xu, Jiayuan]Key Laboratory of Urban Stormwater System and Water Environment (Ministry of Education), Beijing University of Civil Engineering and Architecture, Beijing; 100044, China
  • [ 7 ] [van Loosdrecht, Mark C.M.]Department of Biotechnology, Delft University of Technology, Julianalaan 67, BC, Delft; 2628, Netherlands
  • [ 8 ] [Peng, Yongzhen]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Centre of Beijing, Beijing University of Technology, Beijing; 100124, China

Reprint Author's Address:

  • [peng, yongzhen]national engineering laboratory for advanced municipal wastewater treatment and reuse technology, engineering research centre of beijing, beijing university of technology, beijing; 100124, china

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Source :

Chemical Engineering Journal

ISSN: 1385-8947

Year: 2025

Volume: 515

1 5 . 1 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: 3

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