Neutralization of hydroxide generated during skim milk electroacidification and its effect on bipolar and cationic membrane integrity

被引：22

作者：

Bazinet, L ^{[1
]}

Montpetit, D

Ippersiel, D

Mahdavi, B

Amiot, J

Lamarche, F

机构：

[1] Univ Laval, Ctr Rech Sci & Technol Lait STELA, St Foy, PQ G1K 7P4, Canada

[2] Agr & Agro Alimentaire Canada, Ctr Rech & Dev Aliments, St Hyacinthe, PQ J2S 8E3, Canada

[3] Lab Technol Electrochim & Electrotechnol Hydor Qu, Shawinigan, PQ G9N 7N5, Canada

来源：

JOURNAL OF MEMBRANE SCIENCE | 2003年 / 216卷 / 1-2期

关键词：

electrochemical acidification; milk; bipolar membrane; cationic membrane; integrity;

D O I：

10.1016/S0376-7388(03)00076-0

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The aim of the present study was to evaluate the effect of neutralizing the OH- electrogenerated during bipolar membrane electroacidification (BMEA) on the integrity of the cationic and bipolar membranes used. The OH- were neutralized by acidification of the anionic side compartment of the bipolar membrane during BMEA of skim milk. The integrity of the membranes was characterized by membrane parameters and microscopic membrane surface elemental analysis and mapping. It appeared from these results that the resistance of cationic membranes increased, due to an exchange of monovalent counter-cations of the membrane by divalent cations less mobile and to a slight protein fouling. However, integrity and physical characteristics of bipolar membranes were preserved during BMEA. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：229 / 239

页数：11

共 11 条

[1] Effect of membrane permselectivity on the fouling of cationic membranes during skim milk electroacidification [J].