View in EDS

Synergistic microalgae–bacteria interactions and gene dynamics in an intermittently aerated vertical fluidized reactor for C and N removal.

Saved in:
Bibliographic Details
Title: Synergistic microalgae–bacteria interactions and gene dynamics in an intermittently aerated vertical fluidized reactor for C and N removal.
Authors: Alvarez‐Moreno, Brenda Berenice1 (AUTHOR), González‐Blanco, Gehovana2 (AUTHOR), Hernández‐Soto, Luis Mario3 (AUTHOR), Aguirre‐Garrido, José Félix3 (AUTHOR), Rayas‐Amor, Adolfo Armando4 (AUTHOR), Beristain‐Cardoso, Ricardo1 (AUTHOR) r.beristain@correo.ler.uam.mx
Source: Journal of Chemical Technology & Biotechnology. Jun2026, Vol. 101 Issue 6, p1153-1161. 9p.
Subjects: Nitrogen removal (Sewage purification), Fluidized bed reactors, Denitrifying bacteria, Wastewater treatment, Organic compounds removal (Sewage purification), Genetic variation
Abstract: BACKGROUND: The integration of microalgae and activated sludge offers a promising route for energy‐efficient wastewater treatment. This study investigated a vertical fluidized reactor intermittently aerated and operated under light/dark cycles, at a hydraulic retention time (HRT) of 1 and 2 days, to evaluate the development and performance of a microalgae–bacteria consortium. Although Chlorella vulgaris was initially inoculated, the final community structure was dominated by Chlamydomonas eustigma, Volvox reticuliferus, and Scenedesmus sp., highlighting a dynamic ecological succession driven by operational conditions. RESULTS: Under steady‐state conditions, chemical oxygen demand removal reached 99.57 ± 0.96%, while ammonium removal achieved 72.22 ± 9.48%, accompanied by notable improvements in sludge settleability. Genes encoding complete denitrification (narGHI, nirK, norBC, nosZ) and carbon metabolism (Entner–Doudoroff, glycolysis, tricarboxylic acid cycle) were identified. In contrast, genes for complete nitrification were absent except for nxrAB, while nitrogen fixation genes were detected, indicating probably community‐level functional resilience. CONCLUSION: These results demonstrate the strong redox complementarity and metabolic cooperation within the microalgae–bacteria consortium. The system represents an energy‐efficient and sustainable alternative for simultaneous nutrient and organic matter removal, with potential for biomass valorization in advanced wastewater treatment technologies. © 2026 Society of Chemical Industry (SCI). [ABSTRACT FROM AUTHOR]
Copyright of Journal of Chemical Technology & Biotechnology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 193626362
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Synergistic microalgae–bacteria interactions and gene dynamics in an intermittently aerated vertical fluidized reactor for C and N removal.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Alvarez‐Moreno%2C+Brenda+Berenice%22">Alvarez‐Moreno, Brenda Berenice</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22González‐Blanco%2C+Gehovana%22">González‐Blanco, Gehovana</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hernández‐Soto%2C+Luis+Mario%22">Hernández‐Soto, Luis Mario</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aguirre‐Garrido%2C+José+Félix%22">Aguirre‐Garrido, José Félix</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rayas‐Amor%2C+Adolfo+Armando%22">Rayas‐Amor, Adolfo Armando</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Beristain‐Cardoso%2C+Ricardo%22">Beristain‐Cardoso, Ricardo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> r.beristain@correo.ler.uam.mx</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Chemical+Technology+%26+Biotechnology%22">Journal of Chemical Technology & Biotechnology</searchLink>. Jun2026, Vol. 101 Issue 6, p1153-1161. 9p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Nitrogen+removal+%28Sewage+purification%29%22">Nitrogen removal (Sewage purification)</searchLink><br /><searchLink fieldCode="DE" term="%22Fluidized+bed+reactors%22">Fluidized bed reactors</searchLink><br /><searchLink fieldCode="DE" term="%22Denitrifying+bacteria%22">Denitrifying bacteria</searchLink><br /><searchLink fieldCode="DE" term="%22Wastewater+treatment%22">Wastewater treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Organic+compounds+removal+%28Sewage+purification%29%22">Organic compounds removal (Sewage purification)</searchLink><br /><searchLink fieldCode="DE" term="%22Genetic+variation%22">Genetic variation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: BACKGROUND: The integration of microalgae and activated sludge offers a promising route for energy‐efficient wastewater treatment. This study investigated a vertical fluidized reactor intermittently aerated and operated under light/dark cycles, at a hydraulic retention time (HRT) of 1 and 2 days, to evaluate the development and performance of a microalgae–bacteria consortium. Although Chlorella vulgaris was initially inoculated, the final community structure was dominated by Chlamydomonas eustigma, Volvox reticuliferus, and Scenedesmus sp., highlighting a dynamic ecological succession driven by operational conditions. RESULTS: Under steady‐state conditions, chemical oxygen demand removal reached 99.57 ± 0.96%, while ammonium removal achieved 72.22 ± 9.48%, accompanied by notable improvements in sludge settleability. Genes encoding complete denitrification (narGHI, nirK, norBC, nosZ) and carbon metabolism (Entner–Doudoroff, glycolysis, tricarboxylic acid cycle) were identified. In contrast, genes for complete nitrification were absent except for nxrAB, while nitrogen fixation genes were detected, indicating probably community‐level functional resilience. CONCLUSION: These results demonstrate the strong redox complementarity and metabolic cooperation within the microalgae–bacteria consortium. The system represents an energy‐efficient and sustainable alternative for simultaneous nutrient and organic matter removal, with potential for biomass valorization in advanced wastewater treatment technologies. © 2026 Society of Chemical Industry (SCI). [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Chemical Technology & Biotechnology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=193626362
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/jctb.70166
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 9
        StartPage: 1153
    Subjects:
      – SubjectFull: Nitrogen removal (Sewage purification)
        Type: general
      – SubjectFull: Fluidized bed reactors
        Type: general
      – SubjectFull: Denitrifying bacteria
        Type: general
      – SubjectFull: Wastewater treatment
        Type: general
      – SubjectFull: Organic compounds removal (Sewage purification)
        Type: general
      – SubjectFull: Genetic variation
        Type: general
    Titles:
      – TitleFull: Synergistic microalgae–bacteria interactions and gene dynamics in an intermittently aerated vertical fluidized reactor for C and N removal.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Alvarez‐Moreno, Brenda Berenice
      – PersonEntity:
          Name:
            NameFull: González‐Blanco, Gehovana
      – PersonEntity:
          Name:
            NameFull: Hernández‐Soto, Luis Mario
      – PersonEntity:
          Name:
            NameFull: Aguirre‐Garrido, José Félix
      – PersonEntity:
          Name:
            NameFull: Rayas‐Amor, Adolfo Armando
      – PersonEntity:
          Name:
            NameFull: Beristain‐Cardoso, Ricardo
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 02682575
          Numbering:
            – Type: volume
              Value: 101
            – Type: issue
              Value: 6
          Titles:
            – TitleFull: Journal of Chemical Technology & Biotechnology
              Type: main
ResultId 1