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Peer-reviewedCC BY 4.0Frontiers in Microbiology

Genome-resolved metagenomics reveals potential biochemical capabilities of a microbial community in an industrial wastewater membrane bioreactor during performance deterioration and recovery

  • Hana Barak1
  • Asher Brenner2
  • Ariel Kushmaro1,3,4
4 affiliations
  1. 1Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev
  2. 2Department of Civil and Environmental Engineering, Ben-Gurion University of the Negev
  3. 3The Ilse Katz Center for Nanoscale Science and Technology, Ben-Gurion University of the Negev
  4. 4School of Sustainability and Climate Change, Ben-Gurion University of the Negev
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Abstract

This study investigates the microbial community composition and biochemical capabilities within a membrane bioreactor (MBR) system treating industrial wastewater during two operational states: a period of marked performance deterioration and a subsequent early recovery phase. The MBR system experienced a prolonged decline in treatment performance, with Total Organic Carbon (TOC) removal efficiency decreasing from approximately 90% to approximately 70% and effluent Biochemical Oxygen Demand (BOD) increasing to more than 70 mg/L. Metagenomic sequencing and subsequent analysis unveiled distinct shifts in microbial community composition and functional potential during these operational states. A total of 51 Metagenome-Assembled Genomes (MAGs) were reconstructed and characterized, revealing microbial populations associated with Pseudomonadota and Bacteroidota . These populations exhibited putative metabolic capabilities associated with nitrogen cycling, sulfur metabolism, and degradation of recalcitrant aromatic compounds. Key taxa enriched during the early recovery condition contained genes associated with nitrogen fixation and sulfur oxidation. These findings provide genome-resolved insights into microbial community composition and predicted functional potential during contrasting MBR operational states and may inform future investigations of industrial wastewater treatment systems.

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Cite

BibTeXRIS
BibTeX
@article{barak2026genomeresolved,
  title = {{Genome-resolved metagenomics reveals potential biochemical capabilities of a microbial community in an industrial wastewater membrane bioreactor during performance deterioration and recovery}},
  author = {Hana Barak and Asher Brenner and Ariel Kushmaro},
  journal = {Frontiers in Microbiology},
  year = {2026},
  month = oct,
  doi = {10.3389/fmicb.2026.1908813},
  url = {https://www.frontiersin.org/articles/10.3389/fmicb.2026.1908813/full},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Genome-resolved metagenomics reveals potential biochemical capabilities of a microbial community in an industrial wastewater membrane bioreactor during performance deterioration and recovery
AU  - Hana Barak
AU  - Asher Brenner
AU  - Ariel Kushmaro
PY  - 2026
DA  - 2026/10/09
JO  - Frontiers in Microbiology
DO  - 10.3389/fmicb.2026.1908813
UR  - https://www.frontiersin.org/articles/10.3389/fmicb.2026.1908813/full
AB  - This study investigates the microbial community composition and biochemical capabilities within a membrane bioreactor (MBR) system treating industrial wastewater during two operational states: a period of marked performance deterioration and a subsequent early recovery phase. The MBR system experienced a prolonged decline in treatment performance, with Total Organic Carbon (TOC) removal efficiency decreasing from approximately 90% to approximately 70% and effluent Biochemical Oxygen Demand (BOD) increasing to more than 70 mg/L. Metagenomic sequencing and subsequent analysis unveiled distinct shifts in microbial community composition and functional potential during these operational states. A total of 51 Metagenome-Assembled Genomes (MAGs) were reconstructed and characterized, revealing microbial populations associated with Pseudomonadota and Bacteroidota . These populations exhibited putative metabolic capabilities associated with nitrogen cycling, sulfur metabolism, and degradation of recalcitrant aromatic compounds. Key taxa enriched during the early recovery condition contained genes associated with nitrogen fixation and sulfur oxidation. These findings provide genome-resolved insights into microbial community composition and predicted functional potential during contrasting MBR operational states and may inform future investigations of industrial wastewater treatment systems.
SN  - 1664-302X
ER  -