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Use of copper sheet in a solar photo-Fenton-like process applied in the treatment of landfill leachate.
Poblete, Rodrigo; Rodríguez, Carlos Anibal; Carrasco, Claudia; Herrera, José; Salazar-González, Ricardo.
Afiliação
  • Poblete R; Universidad Católica del Norte, Facultad de Ciencias del Mar, Escuela de Prevención de Riesgos Y Medioambiente, Antofagasta, Chile. rpobletech@ucn.cl.
  • Rodríguez CA; Multidisciplinary Research Institute for Science and Technology, Universidad de La Serena, 1305 Raúl Bitrán Av, La Serena, Chile.
  • Carrasco C; Departamento de Ingeniería de Materiales, Universidad de Concepción, 270 Edmundo Larenas St, Concepción, Chile.
  • Herrera J; Facultad de Química Y Biología, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago, Chile.
  • Salazar-González R; Analysis, Treatment, Electrochemistry, Recovery and Reuse of Water Research Group, WATER2, Departamento de Química Inorgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago, Chile.
Environ Sci Pollut Res Int ; 30(25): 67513-67524, 2023 May.
Article em En | MEDLINE | ID: mdl-37115441
It is known that copper can be used as catalyst in photo-Fenton-like process; however, there is a lack of information related with its use in the treatment of landfill leachate (LL) in solar photo-Fenton-like processes. Here, we studied the effect of the mass of a copper sheet, the pH of the solution, and the concentration of LL in the removal of the organic matter present in this water. Before the reaction with landfill leachate, the copper sheet used in the reaction was constituted by Cu+ and Cu2O, respectively. The results showed that in a volume of 0.5 L of a pretreated LL, the higher removal of organic matter resulted using a mass of 2.7 g of the copper sheet, a pH of solution of 5, and a concentration of LL of a 10%, obtaining a final value of C/C0 of chemical oxygen demand (COD) of 0.34, 0.54, 0.66, and 0.84 for concentrations of 25%, 50%, 75%, and 100%, respectively, and 0.0041, 0.0042, 0.0043, and 0.016 for concentration of 25%, 50%, 75%, and 100%, respectively, of C/C0 of humic acids. The photolysis on LL at its natural pH using solar UV removes very little humic acid and COD, going from 9.4 to 8.5 and 7.7 Abs254 for photolysis and UV + H2O2, obtaining 8.6 and 17.6% of removal, respectively, and 2.01 and 13.04% removal of COD, respectively. Copper sheet applied under Fenton-like conditions results in 65.9% removal and an increase of 0.2% for humic acid and COD, respectively. Removal using only H2O2 for Abs254 and COD was 11.95 and 4.3%, respectively. Raw LL produced a 29.1% inhibition of the biological activated sludge rate after the adjustment to pH 7 and the final process of inhibition was 0.23%.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Ferro Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Chile País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
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XML
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Ferro Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Chile País de publicação: Alemanha