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A continuous process in mixers-settlers for the removal/recovery of chromium in effluents from the tanning industry.
Martínez-Pérez, Carlos Benito; Gamiño-Arroyo, Zeferino; Gómez-Castro, Fernando Israel; Hernández, Salvador; Rodríguez-Alejandro, David Aarón; Sánchez-Cadena, Lorena Eugenia; Tadeo-Chávez, Alejandro; Uribe-Ramírez, Agustín Ramón.
Afiliação
  • Martínez-Pérez CB; Departamento de Ingeniería Química, Universidad de Guanajuato, Gto, 36050, Guanajuato, Mexico.
  • Gamiño-Arroyo Z; Departamento de Ingeniería Química, Universidad de Guanajuato, Gto, 36050, Guanajuato, Mexico. gaminoz@ugto.mx.
  • Gómez-Castro FI; Departamento de Ingeniería Química, Universidad de Guanajuato, Gto, 36050, Guanajuato, Mexico.
  • Hernández S; Departamento de Ingeniería Química, Universidad de Guanajuato, Gto, 36050, Guanajuato, Mexico.
  • Rodríguez-Alejandro DA; Departamento de Ingeniería Mecánica, Universidad de Guanajuato, Gto, 36885, Salamanca, Mexico.
  • Sánchez-Cadena LE; Departamento de Ingeniería Civil y Ambiental, Universidad de Guanajuato, Gto, 36000, Guanajuato, Mexico.
  • Tadeo-Chávez A; Departamento de Ingeniería Mecatrónica, Instituto Tecnológico Superior de Irapuato, Gto, 36821, Irapuato, Mexico.
  • Uribe-Ramírez AR; Departamento de Ingeniería Química, Universidad de Guanajuato, Gto, 36050, Guanajuato, Mexico.
Environ Monit Assess ; 195(10): 1258, 2023 Sep 30.
Article em En | MEDLINE | ID: mdl-37777690
One of the main environmental issues caused by the tanning industry is given by the high concentration of chromium contained on its effluents. The removal of this pollutant has become a technological challenge. To solve this issue, this work proposes a continuous process based on mixers-settlers for the removal of the chromium present in effluents from the tanning industry. The process involves the use of liquid-liquid extraction systems. The study includes the development of isotherms for the removal and stripping, which are further represented through a mathematical model to determine the number of theoretical extraction stages and other operational variables. The results show that a better extraction is achieved in a system with two theoretical stages using Cyanex 272 as extractant, reaching more than 94% of removal of chromium with an extractant concentration of 0.32 mol/L. For stripping, sulfuric acid is used, obtaining a maximum recovery of 94%.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Cromo Tipo de estudo: Prognostic_studies Idioma: En Revista: Environ Monit Assess Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2023 Tipo de documento: Article País de afiliação: México País de publicação: Holanda
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Cromo Tipo de estudo: Prognostic_studies Idioma: En Revista: Environ Monit Assess Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2023 Tipo de documento: Article País de afiliação: México País de publicação: Holanda