## Resumen

During microfiltration, limiting (J_{L}) and critical flux (J_{C}) are essential. Using these concepts, the operational zones, have been established for flux (J) versus transmembrane pressure (ΔP_{T}). However, the resistance model cannot be used for an accurate description of these operational zones. The aim of this work was to evaluate the application of an equation for process parameters' determination during skim milk microfiltration. The exponential model, J = J_{L}(1 - exp(-ΔP_{T}/(ΔP_{T})_{C}), allowed a direct determination of J_{L} and the critical ΔP_{T} ((ΔP_{T})_{C}) and allowed the calculation of J_{C} and the limiting ΔP_{T} ((ΔP_{T})_{L}). The effect of temperature, concentration factor, and cross-flow velocity over J_{L} and (ΔP_{T})_{C} were evaluated. For J_{L} and (ΔP_{T})_{C}, a good fitting was obtained (R_{adj}^{2} = 98.12%; R_{adj}^{2} = 97.83%, respectively). These results allow to predict the limiting and critical points for given values of the concentration factor, cross-flow velocity and temperature. Moreover, determination of the operational zones could be established.

Idioma original | Inglés |
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Páginas (desde-hasta) | 414-425 |

Número de páginas | 12 |

Publicación | Industrial and Engineering Chemistry Research |

Volumen | 54 |

N.º | 1 |

DOI | |

Estado | Publicada - 14 ene. 2015 |

Publicado de forma externa | Sí |