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Anaerobic biofilm enriched with an ammonia tolerant methanogenic consortium to improve wastewater treatment in the fishing industry.
Alarcón-Vivero, Manuel; Moena, Nathaly Ruiz-Tagle; Gonzalez, Fidelina; Jopia-Contreras, Paz; Aspé, Estrella; Briones, Homero Urrutia; Fernandez, Katherine Sossa.
Afiliação
  • Alarcón-Vivero M; Instituto de Acuicultura, Universidad Austral de Chile (UACh), Sede Puerto Montt, Puerto Montt, Chile.
  • Moena NR; Lab. Biopelículas y Microbiología Ambiental, Centro de Biotecnología, Universidad de Concepción, Concepción, Chile.
  • Gonzalez F; Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile.
  • Jopia-Contreras P; Centro de Micro-Bioinnovación, Universidad de Valparaíso, Valparaiso, Chile.
  • Aspé E; Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad de Concepción, Concepción, Chile.
  • Briones HU; Lab. Biopelículas y Microbiología Ambiental, Centro de Biotecnología, Universidad de Concepción, Concepción, Chile.
  • Fernandez KS; Departamento de Microbiología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile.
Biotechnol Lett ; 44(2): 239-251, 2022 Feb.
Article em En | MEDLINE | ID: mdl-35037233
The digestion efficiency of liquid industrial wastes increases when using bioreactors colonized by microbial biofilms. High concentrations of proteins derived from the fish processing industry lead to the production of ammonia, which inhibits methane production. Two bioreactors were constructed to compare methanogenic activity: one enriched with mMPA (methylaminotrofic methane production archaea) consortia (control bioreactor), and the second with NH3 tolerant consortia (treatment bioreactor). Ammonia tolerant activity was assessed by applying an ammonia shock (755 mg NH3/L). Methane production, consumption of total organic carbon (TOC) and the taxonomic composition of bacteria and archaea was evaluated using 16S rDNA in the acclimatization, ammonia shock, and recovery phases.The ammonia shock significantly affected both methane production and the consumption of TOC in the control reactor (p < 0.05) and taxonomical composition of the microbial consortia (OTU). These values remained constant in the treatment reactor. The analysis of biofilm composition showed a predominance of Methanosarcinaceae (Methanomethylovorans sp., and probably two different species of Methanosarcina sp.) in bioreactors. These results demonstrate that using acclimated biofilms enriched with ammonia tolerant methanogens control the inhibitory effect of ammonia on methanogenesis.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Purificação da Água / Reatores Biológicos / Indústria de Processamento de Alimentos / Amônia Limite: Animals Idioma: En Revista: Biotechnol Lett Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Chile País de publicação: Holanda
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Purificação da Água / Reatores Biológicos / Indústria de Processamento de Alimentos / Amônia Limite: Animals Idioma: En Revista: Biotechnol Lett Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Chile País de publicação: Holanda