Luján Facundo, MJ.; Mendoza Roca, JA.; Cuartas Uribe, BE.; Alvarez Blanco, S. (2015). Evaluation of cleaning efficiency of ultrafiltration membranes fouled by BSA using FTIR–ATR as a tool. Journal of Food Engineering. 163:1-8. https://doi.org/10.1016/j.jfoodeng.2015.04.015
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/56781
Title:
|
Evaluation of cleaning efficiency of ultrafiltration membranes fouled by BSA using FTIR–ATR as a tool
|
Author:
|
Luján Facundo, María José
Mendoza Roca, José Antonio
Cuartas Uribe, Beatriz Elena
Alvarez Blanco, Silvia
|
UPV Unit:
|
Universitat Politècnica de València. Instituto de Seguridad Industrial, Radiofísica y Medioambiental - Institut de Seguretat Industrial, Radiofísica i Mediambiental
Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear
|
Issued date:
|
|
Abstract:
|
The goal of this paper was to study the cleaning of two polyethersulfone (PES) membranes of different molecular weight and fouled with BSA solution. Ultrafiltration (UF) membranes were tested in a flat sheet module. Fouling ...[+]
The goal of this paper was to study the cleaning of two polyethersulfone (PES) membranes of different molecular weight and fouled with BSA solution. Ultrafiltration (UF) membranes were tested in a flat sheet module. Fouling experiments were carried out at a transmembrane pressure of 2 bar and cross flow velocity of 2 m/s during 2 h. Cleaning experiments were performed at 1 bar and 2.2 m/s. To compare the efficiency of different cleaning solutions (NaOH and P3-Ultrasil 115), quantification of residual pro-teins on the membrane was carried out by FTIR ATR. To have a better understanding of the cleaning pro-cess, characteristics of the feed solution and of the membranes were considered and contact angle of the membranes before and after the cleaning was measured. Membrane resistances were also calculated at the different stages. Results from resistances showed that reversible fouling prevail over irreversible fouling for both membranes. P3-Ultrasil 115 was a better cleaning agent than NaOH solution since cleaning efficiencies (CE) of 100% for both membranes were achieved for P3-Ultrasil 115 solution. Residual pro-teins on the membrane after the cleaning were measured both by FTIR ATR and Pierce-BCA method. Results showed that 100% of permeability recovery did not imply the complete BSA removal from the membrane. However, these measurements corroborated that P3-Ultrasil 115 had removed a higher amount of proteins than NaOH solution.
[-]
|
Subjects:
|
Ultrafiltration
,
Bovine serum albumin
,
FTIR-ATR
,
Fouling
,
Membrane cleaning
|
Copyrigths:
|
Reserva de todos los derechos
|
Source:
|
Journal of Food Engineering. (issn:
0260-8774
)
|
DOI:
|
10.1016/j.jfoodeng.2015.04.015
|
Publisher:
|
Elsevier
|
Publisher version:
|
http://dx.doi.org/10.1016/j.jfoodeng.2015.04.015
|
Project ID:
|
info:eu-repo/grantAgreement/MICINN//CTM2010-20186/ES/TECNICAS NO CONVENCIONALES PARA LA LIMPIEZA DE MEMBRANAS DE ULTRAFILTRACION APLICADAS EN LA INDUSTRIA ALIMENTARIA/
|
Thanks:
|
This work was supported by the Spanish Ministry of Science and Innovation (CTM 2010-20.186).
|
Type:
|
Artículo
|