Steady-state modeling of water-splitting and multi-ionic transport of skim milk electro-acidification by bipolar membrane electrodialysis

Arthur Merkel*, Tamara León*, Lluís Jofre, José Luis Cortina, Lukáš Dvořák, Lilia Ahrné*

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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Abstract

Electrodialysis has become a relevant technology in promoting sustainability within the food industry. Bipolar membrane electrodialysis offers an efficient and eco-friendly alternative for skim milk acidification, eliminating the need for added acids that affect milk composition and properties. For the first time, this study presents a comprehensive 2-D computational model to investigate the multi-ionic transport and dynamics of skim milk electro-acidification using bipolar membrane electrodialysis. The model is based on conservation equations for mass-charge transport, coupled with the description of water-splitting through the second Wien effect. The primary focus of the analysis was on the skim milk pH evolution and the concentration profiles of the major ions. The results showed that ion concentration values varied due to concentration polarization and differences in ion mobilities. The simulations were compared with experimental data, showing reasonable agreement, particularly for Ca2+ ion concentration. Despite excluding organic components in its analysis, this model offers a novel and valuable approach to the study of skim milk electro-acidification using bipolar membrane electrodialysis, providing essential insights for process understanding and optimization.

OriginalsprogEngelsk
Artikelnummer112106
TidsskriftJournal of Food Engineering
Vol/bind378
Antal sider10
ISSN0260-8774
DOI
StatusUdgivet - 2024

Bibliografisk note

Funding Information:
This research was funded by The Platform for Novel Gentle Processing supported by the Dairy Rationalisation Fund (DDRF), University of Copenhagen and Arla Foods. This research has received funding from the European Union's Horizon 2020 research and innovation programme, within the OpenInnoTrain project under the Marie Sk\u0142odowska-Curie grant agreement n\u00B0823971. The content of this publication does not reflect the official opinion of the European Union. Responsibility for the information and views expressed in the publication lies entirely with the author(s).

Funding Information:
This research has received funding from the European Union's Horizon 2020 research and innovation programme, within the OpenInnoTrain project under the Marie Sk\u0142odowska-Curie grant agreement n\u00B0823971. The content of this publication does not reflect the official opinion of the European Union. Responsibility for the information and views expressed in the publication lies entirely with the author(s).

Publisher Copyright:
© 2024 The Authors

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