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Degradation of estriol (E3) and transformation pathways after applying photochemical removal processes in natural surface water.
Perondi, T; Michelon, W; Basso, A; Bohrer, J K; Viancelli, A; Fonseca, T G; Treichel, H; Moreira, R F P M; Peralta, R A; Düsman, E; Pokrywiecki, T S.
Afiliação
  • Perondi T; Francisco Beltrão, Federal University of Technology - Paraná, Linha Santa Bárbara, s/n, PR, 85601-970, Paraná, Brazil.
  • Michelon W; Concordia, Santa Catarina, Universidade do Contestado, Victor Sopelsa, 3000, 89711-330, Concórdia, SC, Brazil E-mail: alinevbortoli@gmail.com.
  • Basso A; Eng. Agronômico Andrei Cristian Ferreira, Federal University of Santa Catarina, s/n - Trindade, Florianópolis - SC, 88040-900, Florianópolis, Santa Catarina, Brazil.
  • Bohrer JK; Francisco Beltrão, Federal University of Technology - Paraná, Linha Santa Bárbara, s/n, PR, 85601-970, Paraná, Brazil.
  • Viancelli A; Concordia, Santa Catarina, Universidade do Contestado, Victor Sopelsa, 3000, 89711-330, Concórdia, SC, Brazil E-mail: alinevbortoli@gmail.com.
  • Fonseca TG; Concordia, Santa Catarina, Universidade do Contestado, Victor Sopelsa, 3000, 89711-330, Concórdia, SC, Brazil E-mail: alinevbortoli@gmail.com.
  • Treichel H; Federal University of Fronteira Sul, RS-135, 200 - Zona Rural, Erechim - RS, 99700-000, Erechim, Rio Grande do Sul, Brazil.
  • Moreira RFPM; Eng. Agronômico Andrei Cristian Ferreira, Federal University of Santa Catarina, s/n - Trindade, Florianópolis - SC, 88040-900, Florianópolis, Santa Catarina, Brazil.
  • Peralta RA; Eng. Agronômico Andrei Cristian Ferreira, Federal University of Santa Catarina, s/n - Trindade, Florianópolis - SC, 88040-900, Florianópolis, Santa Catarina, Brazil.
  • Düsman E; Francisco Beltrão, Federal University of Technology - Paraná, Linha Santa Bárbara, s/n, PR, 85601-970, Paraná, Brazil.
  • Pokrywiecki TS; Francisco Beltrão, Federal University of Technology - Paraná, Linha Santa Bárbara, s/n, PR, 85601-970, Paraná, Brazil.
Water Sci Technol ; 82(7): 1445-1453, 2020 Oct.
Article em En | MEDLINE | ID: mdl-33079722
Steroidal hormones such as estriol (E3), are resistant to biodegradation; hence their removal by conventional treatment systems (aerobic and anaerobic) facilities is limited. These substances are detected in surface water, and present risks to the aquatic ecosystem and humans via potential biological activity. Photochemical treatments can be used to remove E3; however, just a few studies have analyzed the kinetics, intermediates, and E3 degradation pathways in natural surface water. In this study, the behavior of E3 under ultraviolet irradiation associated with H2O2, O3 or TiO2 was investigated to determine the degradation potential and the transformation pathways in reactions performed with a natural surface water sample. E3 degradation kinetics (200 ppb) fitted well to the pseudo-first-order kinetics model, with kinetic constant k in the following order: kUV/O3 > kUV/TiO2 > kUV/H2O2 > kUV. The mechanism of degradation using different advanced oxidative processes seemed to be similar and 12 transformation byproducts were identified, with 11 of them being reported here for the first time. The byproducts could be formed by the opening of the aromatic ring and addition of a hydroxyl radical. A possible route of E3 degradation was proposed based on the byproducts identified, and some of the byproducts presented chronic toxicity to aquatic organisms, demonstrating the risks of exposure.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Água / Peróxido de Hidrogênio Idioma: En Revista: Water Sci Technol Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Água / Peróxido de Hidrogênio Idioma: En Revista: Water Sci Technol Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido