Artigo de periodico

Degradation of Organic Carbon in Pharmaceutical Wastewater: a Kinetic Approach (2021)

• Authors:
  • Izario Filho, Hélcio José
  • Aguiar, Leandro Gonçalves de
  • Siqueira, Adriano Francisco
  • Alcântara, Marco Aurélio Kondracki de
  • Da Rós, Patrícia Caroline Molgero
  • Rocha, Robson Silva
  • Napoleão, Diovana Aparecida dos Santos
  • Brandão, Joaquim Joffre
• USP affiliated authors: IZÁRIO FILHO, HÉLCIO JOSÉ - EEL ; AGUIAR, LEANDRO GONÇALVES DE - EEL ; SIQUEIRA, ADRIANO FRANCISCO - EEL ; ALCÂNTARA, MARCO AURÉLIO KONDRACKI DE - EEL ; RÓS, PATRÍCIA CAROLINE MOLGERO DA - EEL ; ROCHA, ROBSON DA SILVA - EEL ; NAPOLEÃO, DIOVANA APARECIDA DOS SANTOS - EEL
• Unidade: EEL
• DOI: 10.1007/s11270-021-05039-w
• Assunto: CINÉTICA
• Keywords: Pharmaceutical wastewater; Kinetic model; Carbonaceous degradation; Photo-Fenton
• Agências de fomento:
  • Financiamento CAPES
  • Financiamento FAPESP
  • Financiamento CNPq
• Language: Inglês
• Abstract: This study aimed to investigate the degradation kinetics of the total organic carbon (TOC) in real pharmaceutical wastewater. Because of the complexity of real wastewaters and the lack of knowledge on all reactions involved in their chemical degradation, the use of a kinetic approach becomes difficult. To overcome this difficulty, we adopted a kinetic model based on chemical equations validated for mechanisms of free radical generation. PhotoFenton reactions were performed in a 1-L tubular reactor. The developed model satisfactorily described the degradation kinetics of TOC in wastewater, with an R2 of 0.9997. The TOC degradation rate constant (kd) was estimated at 1 × 1011 L2 mol2 s −1 , in agreement with literature values for the degradation kinetics of organic compounds. UV radiation had a positive effect on degradation, contributing to HO• formation. The adopted mathematical approach was highly sensitive to the formation rate constant of HO• from H2O2 (k4). By assuming the reaction to follow variable order kinetics (β = 1 and β = 2), it was possible to improve the goodness of fit of the model. Our results suggest, albeit in an incipient way, that the approach used in this study can be extended to the kinetic understanding of other complex wastewaters.
• Imprenta:
  • Publisher: Springer
  • Publisher place: Innsbruck
  • Date published: 2021
• Source:
  • Título: Water air and soil pollution
  • ISSN: 0049-6979
  • Volume/Número/Paginação/Ano: v.232, p.1-11, art. n. 85-, 2021

Informações sobre o DOI: 10.1007/s11270-021-05039-w (Fonte: oaDOI API)
• Este periódico é de assinatura
• Este artigo NÃO é de acesso aberto
  
• Cor do Acesso Aberto: closed

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How to cite

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• ABNT

  IZARIO FILHO, Hélcio José et al. Degradation of Organic Carbon in Pharmaceutical Wastewater: a Kinetic Approach. Water air and soil pollution, v. 232, n. art. 85-, p. 1-11, 2021Tradução . . Disponível em: https://doi.org/10.1007/s11270-021-05039-w. Acesso em: 28 dez. 2025.

• APA

  Izario Filho, H. J., Aguiar, L. G. de, Siqueira, A. F., Alcântara, M. A. K. de, Da Rós, P. C. M., Rocha, R. S., et al. (2021). Degradation of Organic Carbon in Pharmaceutical Wastewater: a Kinetic Approach. Water air and soil pollution, 232( art. 85-), 1-11. doi:10.1007/s11270-021-05039-w

• NLM

  Izario Filho HJ, Aguiar LG de, Siqueira AF, Alcântara MAK de, Da Rós PCM, Rocha RS, Napoleão DA dos S, Brandão JJ. Degradation of Organic Carbon in Pharmaceutical Wastewater: a Kinetic Approach [Internet]. Water air and soil pollution. 2021 ;232( art. 85-): 1-11.[citado 2025 dez. 28 ] Available from: https://doi.org/10.1007/s11270-021-05039-w

• Vancouver

  Izario Filho HJ, Aguiar LG de, Siqueira AF, Alcântara MAK de, Da Rós PCM, Rocha RS, Napoleão DA dos S, Brandão JJ. Degradation of Organic Carbon in Pharmaceutical Wastewater: a Kinetic Approach [Internet]. Water air and soil pollution. 2021 ;232( art. 85-): 1-11.[citado 2025 dez. 28 ] Available from: https://doi.org/10.1007/s11270-021-05039-w

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