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DOI | 10.1021/ACS.IECR.8B03576 | ||||
Año | 2018 | ||||
Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
The main objective of the present investigation was to analyze, evaluate, and model the behavior in the treatment of real acid mine drainage (AMD) with commercial spiral-wound nanofiltration membranes (NF270 and NF90). Both membranes showed operational differences regarding the effect of pH, temperature, continuous operation, concentration polarization, and fouling. Both NF90 and NF270 presented a high rejection of divalent ions (similar to 100%); however, NF90 showed a greater fouling with AMD. Adjustment of pH in the continuous tests reduced the precipitation of aluminum, and gypsum was identified as the main compound generating a significant decrease in the permeate flow in the membrane. The Spliegler-Kedem model was used to represent rejection and permeate flows, identifying the contribution of convective and diffusive transport in both membranes with a good fit of the model. The results obtained represent important information for a future industrial application to the treatment of AMD by means of commercial NF membranes.
Ord. | Autor | Género | Institución - País |
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1 | ANDALAFT-SENOCIAIN, JAVIER ANDRES | Hombre |
Universidad de Concepción - Chile
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2 | Schwarz, Alex | Hombre |
Universidad de Concepción - Chile
Centro de Recursos Hidricos para la Agricultura y la Mineria - Chile |
3 | PINO-SOTO, LUIS HUMBERTO | Hombre |
Universidad de Concepción - Chile
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4 | Fuentes, Paula | Mujer |
Universidad de Concepción - Chile
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5 | BORQUEZ-YANEZ, RODRIGO MANUEL | Hombre |
Universidad de Concepción - Chile
Centro de Recursos Hidricos para la Agricultura y la Mineria - Chile |
6 | AYBAR-LAGOS, MARCELO | Hombre |
Universidad de Concepción - Chile
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Fuente |
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CONICYT |
Comisión Nacional de Investigación Científica y Tecnológica |
CODELCO |
Center for Mathematical Modeling of Universidad de Chile |
Agradecimiento |
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Author J.A. received the Piensacobre MS Scholarship from Codelco and the Center for Mathematical Modeling of Universidad de Chile. Authors R.B. and A.S. received funding from the CONICYT Grant FONDAP/CRHIAM/15130015. Author L.P. received funding from the CONICYT Grant 21160607. |
Author J.A. received the Piensacobre MS Scholarship from Codelco and the Center for Mathematical Modeling of Universidad de Chile. Authors R.B. and A.S. received funding from the CONICYT Grant FONDAP/CRHIAM/15130015. Author L.P. received funding from the CONICYT Grant 21160607. |