Bipolar membrane electrodialysis assisted pH correction of milk whey

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F18%3AN0000085" target="_blank" >RIV/28676092:_____/18:N0000085 - isvavai.cz</a>

Alternative codes found

RIV/62156489:43210/18:43913881

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0376738817334233?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0376738817334233?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.memsci.2018.03.035" target="_blank" >10.1016/j.memsci.2018.03.035</a>

Result language

angličtina

Original language name

Bipolar membrane electrodialysis assisted pH correction of milk whey

Original language description

The neutralization of milk whey after the electrodialysis (ED) is usually carried out by direct addition of NaOH or KOH solution. However, the addition of these solutions results in an increase in total solids and ash content of the whey sample. In this work, electrodialysis with the bipolar membrane (EDBM) was examined to neutralize the desalinated whey after ED. First, ED was used to desalinate the nanofiltrated whey (NFW). Three milk whey samples differing in demineralization rate in ED were subjected to the EDBM. Two configurations of EDBM were applied to increase the pH of the milk whey samples. When the samples which had been demineralized first with conventional ED, were submitted in EDBM the pH increased to the desired values. However, the pH of NFW sample only increased to the values less than 6. The changes in pH, total solids, ash content, and minerals profile of various samples after EDBM were investigated. It was figured out that the increase in pH was not accompanied by any significant increase in total solids and ash content of the samples. The mechanisms of ion transport during EDBM for either cations or anions were investigated. The cations were mainly transported by diffusion in developed configurations of EDBM while anions were transported either with diffusion or migration depending on the type of milk whey sample. With increasing the demineralization rate of the whey in ED the diffusional transport of species in EDBM reduces due to the decrease in ion content of the whey. Two configurations of EDBM were compared in terms of fouling on the BM surface, electrodialysis capacity, and energy consumption.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20402 - Chemical process engineering

Project

<a href="/en/project/LO1418" target="_blank" >LO1418: Progressive development of the Membrane Innovation Centre</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Membrane Science

ISSN

0376-7388

e-ISSN

—

Volume of the periodical

2018

Issue of the periodical within the volume

555

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

12

Pages from-to

185-196

UT code for WoS article

000432587300020

EID of the result in the Scopus database

2-s2.0-85044457401