Sourwater treatment by fenton process and its effect on phytotoxicity with <i>Lactuca sativa

Autores

  • Thiago Atsushi Takashina Universidade Federal do Paraná
  • Celia Regina Granhen Tavares Universidade Estadual de Maringá
  • Marcos Rogério Mafra Universidade Federal do Paraná
  • Mônica Beatriz Kolicheski Universidade Federal do Paraná
  • Luciana Igarashi-Mafra Universidade Federal do Paraná

DOI:

https://doi.org/10.4025/actascitechnol.v41i1.41288

Palavras-chave:

petroleum effluent, advanced oxidative process, total phenols, bioassays, experimental design.

Resumo

In this work, degradation of stripped sourwater by Fenton´s oxidation process was investigated by a central composite design and response surface methodology. The effects of initial concentrations of H2O2 and Fe2+ on the total phenols degradation was studied in a batch reactor. The optimum total phenols degradation was 92% achieved within an H2O2 concentration of 4.4 g L-1 and iron concentration of 162 mg L-1. The mathematical kinetic model adequately represented the experimental results. The results indicated that the Fenton oxidation rate (1/m) and removal efficiency (1/b) were more dependent on iron concentration than H2O2 concentration. After the Fenton process, the sourwater presented a seed germination rate (L. sativa) above 80%, indicating reduced phytotoxicity of the treated effluent. It was also observed that the H2O2 concentration significantly affected the inhibition concentration (IC50).

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Biografia do Autor

Thiago Atsushi Takashina, Universidade Federal do Paraná

Departamento de Engenharia Quí­mica

Celia Regina Granhen Tavares, Universidade Estadual de Maringá

Departamento de Engenharia Quí­mica

Marcos Rogério Mafra, Universidade Federal do Paraná

Departamento de Engenharia Quí­mica

Mônica Beatriz Kolicheski, Universidade Federal do Paraná

Departamento de Engenharia Quí­mica

Luciana Igarashi-Mafra, Universidade Federal do Paraná

Departamento de Engenharia Quí­mica

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Publicado

2019-07-04

Como Citar

Takashina, T. A., Tavares, C. R. G., Mafra, M. R., Kolicheski, M. B., & Igarashi-Mafra, L. (2019). Sourwater treatment by fenton process and its effect on phytotoxicity with <i>Lactuca sativa. Acta Scientiarum. Technology, 41(1), e41288. https://doi.org/10.4025/actascitechnol.v41i1.41288

Edição

Seção

Engenharia Quí­mica

 

0.8
2019CiteScore
 
 
36th percentile
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0.8
2019CiteScore
 
 
36th percentile
Powered by  Scopus

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