Application of bipolar membrane electrodialysis for acidification of skim milk. A comprehensive study on process performance and effects on ion-exchange membranes
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Application of bipolar membrane electrodialysis for acidification of skim milk. A comprehensive study on process performance and effects on ion-exchange membranes. / Merkel, Arthur; Rudolph-Schöpping, Gregor; Suwal, Shyam; Lipnizki, Frank; Lillevang, Søren K.; Ahrné, Lilia.
In: Journal of Membrane Science, Vol. 694, 122429, 2024.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Application of bipolar membrane electrodialysis for acidification of skim milk. A comprehensive study on process performance and effects on ion-exchange membranes
AU - Merkel, Arthur
AU - Rudolph-Schöpping, Gregor
AU - Suwal, Shyam
AU - Lipnizki, Frank
AU - Lillevang, Søren K.
AU - Ahrné, Lilia
N1 - 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 . Publisher Copyright: © 2024 The Authors
PY - 2024
Y1 - 2024
N2 - Bipolar membrane electrodialysis (EDBM) can be applied for the electro-acidification of skim milk (SM) using a water-splitting effect. A new method of SM acidification gives opportunities and perspectives to the development of alternative and novel products in the dairy industry. The present study assessed the effect of temperatures from 5 °C to 30 °C of EDBM on the electro-acidification of SM in terms of the mineral composition of the side streams. The mechanisms of ion transport during electro-acidification by bipolar membranes (BMs) coupled with cation-exchange membranes (CMs) were investigated. The results showed that the pH of the SM was decreased by ∼14.3% through the proton ions generated due to a water-splitting reaction in the bipolar interface region. Since the BMs and CMs are suspected to change their properties at different temperatures in the high protein solution, their properties and characteristics were investigated. The EDBM performance parameters were calculated. Furthermore, performance efficiency coefficients of the EDBM process as mass flux (J), capacity (CF), specific energy consumption (E) and the current efficiency (η) were calculated.
AB - Bipolar membrane electrodialysis (EDBM) can be applied for the electro-acidification of skim milk (SM) using a water-splitting effect. A new method of SM acidification gives opportunities and perspectives to the development of alternative and novel products in the dairy industry. The present study assessed the effect of temperatures from 5 °C to 30 °C of EDBM on the electro-acidification of SM in terms of the mineral composition of the side streams. The mechanisms of ion transport during electro-acidification by bipolar membranes (BMs) coupled with cation-exchange membranes (CMs) were investigated. The results showed that the pH of the SM was decreased by ∼14.3% through the proton ions generated due to a water-splitting reaction in the bipolar interface region. Since the BMs and CMs are suspected to change their properties at different temperatures in the high protein solution, their properties and characteristics were investigated. The EDBM performance parameters were calculated. Furthermore, performance efficiency coefficients of the EDBM process as mass flux (J), capacity (CF), specific energy consumption (E) and the current efficiency (η) were calculated.
KW - Bipolar membrane electrodialysis
KW - Calcium
KW - Electro-acidification
KW - Fouling
KW - mCT method
KW - Skim milk
U2 - 10.1016/j.memsci.2024.122429
DO - 10.1016/j.memsci.2024.122429
M3 - Journal article
AN - SCOPUS:85182589283
VL - 694
JO - Journal of Membrane Science
JF - Journal of Membrane Science
SN - 0376-7388
M1 - 122429
ER -
ID: 380653404