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Biofilm stratification and autotrophic-heterotrophic interactions in a structured bed reactor (SBRIA) for carbon and nitrogen removal.
Paniguel Oliveira, Eduardo; Giordani, Alessandra; Kawanishi, Juliana; Syrto Octavio de Souza, Theo; Okada, Dagoberto Y; Brucha, Gunther; Brito de Moura, Rafael.
Afiliação
  • Paniguel Oliveira E; Institute of Science and Technology, Federal University of Alfenas (UNIFAL-MG), Poços de Caldas, Brazil.
  • Giordani A; Institute of Science and Technology, Federal University of Alfenas (UNIFAL-MG), Poços de Caldas, Brazil; Department of Hydraulic and Environmental Engineering, Polytechnic School, University of São Paulo, São Paulo, Brazil. Electronic address: giordani.alessandra1211@gmail.com.
  • Kawanishi J; Institute of Science and Technology, Federal University of Alfenas (UNIFAL-MG), Poços de Caldas, Brazil.
  • Syrto Octavio de Souza T; Department of Hydraulic and Environmental Engineering, Polytechnic School, University of São Paulo, São Paulo, Brazil.
  • Okada DY; School of Technology, University of Campinas, Limeira, Brazil.
  • Brucha G; Institute of Science and Technology, Federal University of Alfenas (UNIFAL-MG), Poços de Caldas, Brazil.
  • Brito de Moura R; Institute of Science and Technology, Federal University of Alfenas (UNIFAL-MG), Poços de Caldas, Brazil.
Bioresour Technol ; 372: 128639, 2023 Mar.
Article em En | MEDLINE | ID: mdl-36681348
The structured-bed reactor with intermittent aeration (SBRIA) is a promising technology for simultaneous carbon and nitrogen removal from wastewater. An in depth understanding of the microbiological in the reactor is crucial for its optimization. In this research, biofilm samples from the aerobic and anoxic zones of an SBRIA were analyzed through 16S rRNA sequencing to evaluate the bacterial community shift with variations in the airflow and aeration time. The control of the airflow and aeration time were essential to guarantee reactor performances to nitrogen removal close to 80%, as it interfered in nitrifying and denitrifying communities. The aeration time of 1.75 h led to establishment of different nitrogen removal pathways by syntrophic relationships between nitrifier, denitrifier and anammox species. Additionally, the predominance of these different species in the internal and external parts of the biofilm varied according to the airflow.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Desnitrificação / Nitrogênio Tipo de estudo: Prognostic_studies Idioma: En Revista: Bioresour Technol Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
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XML
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Desnitrificação / Nitrogênio Tipo de estudo: Prognostic_studies Idioma: En Revista: Bioresour Technol Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido