INIQUI 05448
INSTITUTO DE INVESTIGACIONES PARA LA INDUSTRIA QUIMICA
Unidad Ejecutora - UE
artículos
Título:
Electrostatic interactions in virus removal by ultrafiltration membranes
Autor/es:
CRUZ, MERCEDES CECILIA; MARIA M. FIDALGO DE CORTALEZZI; GUILLERMINA J. GENTILE; RAJAL, VERONICA BEATRIZ
Revista:
Journal of Environmental Chemical Engineering
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2018 vol. 6 p. 1314 - 1321
ISSN:
2213-3437
Resumen:
Ultrafiltration membranes are increasingly used in potabilization to remove viral particles. This removal iscontrolled by electrostatic repulsion, attachment and size exclusion. The effect of electrostatic interaction invirus filtration was investigated. Our work included characterization of bacteriophage PP7 and polyethersulfonemembrane with respect to size and surface charge; the removal of this bacteriophage at laboratory scale byultrafiltration membrane process and the mechanism and limitations were analyzed and discussed under DLVOand XDLVO theories. A partial removal of the bacteriophage was achieved; however, enhanced separation maybe achieved considering that the process is affected by the aqueous matrix. The presence of divalent cationsdiminished the effectiveness of the procedure as opposed to monovalent cations and species with amphotericbehavior such as bicarbonate. DLVO and XDLVO predicted the interactions studied between bacteriophage PP7and polyethersulfone membrane.
