Artigo de periodico

Performance and toxicity assessment of an up-flow tubular microbial fuel cell during long-term operation with high-strength dairy wastewater (2020)

• Authors:
  • Marassi, Rodrigo José
  • Silva, Gilmar Clemente
  • Silva, Daniel Clemente Vieira Rego
  • Queiroz, Lucas Gonçalves
  • Silva, Flávio Teixeira
  • Paiva, Teresa Cristina Brazil de
• USP affiliated authors: SILVA, FLÁVIO TEIXEIRA DA - EEL ; PAIVA, TERESA CRISTINA BRAZIL DE - EEL ; MARASSI, RODRIGO JOSÉ - EEL ; QUEIROZ, LUCAS GONÇALVES - EEL
• Unidade: EEL
• DOI: 10.1016/j.jclepro.2009.09.002
• Assunto: BIOFILMES
• Keywords: Biofilme eletroativo; geração de poder; Testes de toxicidade; Remoção de Poluentes
• Agências de fomento:
  • Financiamento CAPES
• Language: Inglês
• Abstract: This study describes the development of an up-flow tubular air-cathode microbial fuel cell (MFC) bioreactor inoculated with a consortium of Shewanella oneidensis and Clostridium butyricum, fed with dairy wastewater (DW). Due to the high organic load of dairy wastewater, the MFC was operated using different strategies for the start-up (30 days) and the subsequent treatment phases (phase 1: 75 days; phase 2: 30 days). The removals of total chemical and biochemical oxygen demand (TCOD and TBOD) were 94 and 96%, under external resistance of 1.0 kΩ (phase 1), and 96 and 97%, under external resistance of 0.3 kΩ (phase 2). In addition, the MFC treatment provided high efficiency for the removal of organic nitrogen (47%), phosphorus (95%), nitrate (100%), and sulfate (75%). The MFC bioreactor delivered maximum power density of 3.5 W m−3 and current density of 1.1 A m−3 at the end of phase 1, and 2.4 W m−3 and 2.4 A m−3 in phase 2, but achieved modest Coulombic efficiency of 2.1% (phase 1) and 4.4% (phase 2), probably due to other metabolic pathways, besides the electrogenic one. Evaluation of the toxicity of the treated DW at two different trophic levels revealed no acute toxic effects towards Daphnia similis (immobilization less than 20%), but statistically significant chronic toxic effects towards Raphidocelis subcapitata (60% inhibition, using a concentrated sample). The findings indicated that the MFC constructed here had excellent potential for dairy wastewater treatment and energy recovery, and that toxicity assessment should be integrated with the MFC process.
• Source:
  • Título: Journal of cleaner production
  • ISSN: 09596526
  • Volume/Número/Paginação/Ano: v., n. , p.120882-, 2020

Informações sobre o DOI: 10.1016/j.jclepro.2009.09.002 (Fonte: oaDOI API)
• Este periódico é de assinatura
• Este artigo NÃO é de acesso aberto
  
• Cor do Acesso Aberto: closed

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• ABNT

  MARASSI, Rodrigo José et al. Performance and toxicity assessment of an up-flow tubular microbial fuel cell during long-term operation with high-strength dairy wastewater. Journal of cleaner production, n. , p. 120882-, 2020Tradução . . Disponível em: https://doi.org/10.1016/j.jclepro.2009.09.002. Acesso em: 04 ago. 2025.

• APA

  Marassi, R. J., Silva, G. C., Silva, D. C. V. R., Queiroz, L. G., Silva, F. T., & Paiva, T. C. B. de. (2020). Performance and toxicity assessment of an up-flow tubular microbial fuel cell during long-term operation with high-strength dairy wastewater. Journal of cleaner production, ( ), 120882-. doi:10.1016/j.jclepro.2009.09.002

• NLM

  Marassi RJ, Silva GC, Silva DCVR, Queiroz LG, Silva FT, Paiva TCB de. Performance and toxicity assessment of an up-flow tubular microbial fuel cell during long-term operation with high-strength dairy wastewater [Internet]. Journal of cleaner production. 2020 ;( ): 120882-.[citado 2025 ago. 04 ] Available from: https://doi.org/10.1016/j.jclepro.2009.09.002

• Vancouver

  Marassi RJ, Silva GC, Silva DCVR, Queiroz LG, Silva FT, Paiva TCB de. Performance and toxicity assessment of an up-flow tubular microbial fuel cell during long-term operation with high-strength dairy wastewater [Internet]. Journal of cleaner production. 2020 ;( ): 120882-.[citado 2025 ago. 04 ] Available from: https://doi.org/10.1016/j.jclepro.2009.09.002

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