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Degradation of antibiotic amoxicillin from pharmaceutical industry wastewater into a continuous flow reactor using supercritical water gasification.
Dias, Isabela M; Mourão, Lucas C; Andrade, Laiane A; Souza, Guilherme B M; Viana, Júlio C V; Oliveira, Sergio B; Alonso, Christian G.
Afiliación
  • Dias IM; Universidade Federal de Goias (UFG), Instituto de Química, Av. Esperança s/n, Campus Samambaia, Goiania, Goias CEP 74690-900, Brazil.
  • Mourão LC; Universidade Federal de Goias (UFG), Instituto de Química, Av. Esperança s/n, Campus Samambaia, Goiania, Goias CEP 74690-900, Brazil.
  • Andrade LA; Universidade Federal do Mato Grosso do Sul (UFMS), Av. Rosilene Lima Oliveira, 64, Jardim Universitário, Nova Andradina, Mato Grosso do Sul CEP 79750-000, Brazil.
  • Souza GBM; Universidade Federal de Goias (UFG), Instituto de Química, Av. Esperança s/n, Campus Samambaia, Goiania, Goias CEP 74690-900, Brazil.
  • Viana JCV; Universidade Federal de Goias (UFG), Instituto de Química, Av. Esperança s/n, Campus Samambaia, Goiania, Goias CEP 74690-900, Brazil; Universidade Federal do Tocantins (UFT), Chácara 69-72 Rua Badejos, Lote 7s/n Câmpus Jardim Sevilha, Gurupi, Tocantins CEP 77410-530, Brazil.
  • Oliveira SB; Instituto Federal de Goiás (IFG), Rua 75 no. 46, Goiânia, Goias CEP 74055-110, Brazil.
  • Alonso CG; Universidade Federal de Goias (UFG), Instituto de Química, Av. Esperança s/n, Campus Samambaia, Goiania, Goias CEP 74690-900, Brazil. Electronic address: christian@ufg.br.
Water Res ; 234: 119826, 2023 May 01.
Article en En | MEDLINE | ID: mdl-36881954
In recent years the concern with emerging pollutants in water has become more prominent, especially pharmaceutical residues, such as antibiotics due to the influence to increase antibacterial resistance. Further, conventional wastewater treatment methods have not demonstrated efficiency for the complete degradation of these compounds, or they have limitations to treat a large volume of waste. In this sense, this study aims to investigate the degradation of amoxicillin, one of the most prescribed antibiotics, in wastewater via supercritical water gasification (SCWG) using a continuous flow reactor. For this purpose, the process operating conditions of temperature, feed flow rate, and concentration of H2O2 was evaluated using Experimental Design and Response Surface Methodology techniques and optimized by Differential Evolution methodology. Total organic carbon (TOC) removal, chemical oxygen demand (COD) degradability, reaction time, amoxicillin degradation rate, toxicity of degradation by-products, and gaseous products were evaluated. The use of SCWG for treatment achieved 78.4% of the TOC removal for the industrial wastewater. In the gaseous products, hydrogen was the majority component. Furthermore, high-performance liquid chromatography analyses demonstrated that the antibiotic amoxicillin was degraded. For a mass flow rate of 15 mg/min of amoxicillin fed into the reaction system, 14.4 mg/min was degraded. Toxicity tests with microcrustacean Artemia salina showed slight toxicity to treated wastewater. Despite that, the outcomes reveal the SCWG has great potential to degrade amoxicillin and may be applied to treat several pharmaceutical pollutants. Aside from this, carbon-rich effluents may lead to a significant energy gaseous product, especially, hydrogen and syngas.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Aguas Residuales Idioma: En Revista: Water Res Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Aguas Residuales Idioma: En Revista: Water Res Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido