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Evaluation of hybrid neutralization/biosorption process for zinc ions removal from automotive battery effluent by dolomite and fish scales.
Ribeiro, C; Scheufele, F B; Alves, H J; Kroumov, A D; Espinoza-Quiñones, F R; Módenes, A N; Borba, C E.
Afiliação
  • Ribeiro C; a Department of Chemical Engineering - Post graduate Program, West Parana State University - UNIOESTE , Toledo , Brazil.
  • Scheufele FB; b Department of Engineering and Exact Sciences, Federal University of Paraná , Palotina , Brazil.
  • Alves HJ; b Department of Engineering and Exact Sciences, Federal University of Paraná , Palotina , Brazil.
  • Kroumov AD; c Department of Applied Microbiology, Division 'Microbial Synthesis and Ecology' The 'Stephan Angeloff' Institute of Microbiology - Bulgarian Academy of Sciences , Sofia , Bulgaria.
  • Espinoza-Quiñones FR; a Department of Chemical Engineering - Post graduate Program, West Parana State University - UNIOESTE , Toledo , Brazil.
  • Módenes AN; a Department of Chemical Engineering - Post graduate Program, West Parana State University - UNIOESTE , Toledo , Brazil.
  • Borba CE; a Department of Chemical Engineering - Post graduate Program, West Parana State University - UNIOESTE , Toledo , Brazil.
Environ Technol ; 40(18): 2373-2388, 2019 Jul.
Article em En | MEDLINE | ID: mdl-29448890
This work focused in the evaluation of Oreochromis niloticus fish scales (FS) as biosorbent material in the removal of Zn from a synthetic effluent based on automotive battery industry effluent and, further, a hybrid neutralization/biosorption process, aiming at a high-quality treated effluent, by a cooperative use of dolomite and FS. For this, a physicochemical and morphological characterization (i.e. SEM-EDX, FTIR, XRD, and TXRF) was performed, which helped to clarify a great heterogeneity of active sites (phosphate, carbonate, amide, and hydroxyl) on the biosorbent; also the inorganic constituents (apatites) leaching from the FS was identified. Biosorption results pointed out to a pH-dependent process due to changes in the functional group's anionic character (i.e. electrostatic interactions), where an initial pH = 3 favored the Zn uptake. Kinetic and equilibrium studies confirmed the heterogeneous surface and cooperative sorption, wherein experimental data were described by Generalized Elovich kinetic model and the favorable isotherm profile by Langmuir-Freundlich isotherm ( qmax = 15.38 mg g-1 and 1/n>1 ). Speciation diagram of Zn species along with the leached species demonstrated that, for the studied pH range, the biosorption was the most likely phenomena rather than precipitation. Finally, the hybrid neutralization/biosorption process showed great potential since both the Zn concentration levels and the pH reached the legislation standards (CZn = 4 mg L-1; pH = 5). Hence, based on the characterization and biosorption results, a comprehensive evaluation of the involved mechanisms in such complex system helped to verify the prospective of FS biosorbent for the Zn treatment from solution, in both individual and hybrid processes.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Zinco Tipo de estudo: Guideline / Observational_studies Idioma: En Revista: Environ Technol Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
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 / Zinco Tipo de estudo: Guideline / Observational_studies Idioma: En Revista: Environ Technol Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido