Improving electrodialysis separation efficiency of minerals from acid whey by nano-filtration pre-processing

Emilie N. Nielsen; Leif H. Skibsted; Saeed R. Yazdi; Arthur Merkel; Lilia M. Ahrné

doi:10.1111/1471-0307.12893

Improving electrodialysis separation efficiency of minerals from acid whey by nano-filtration pre-processing

Emilie N. Nielsen
, Leif H. Skibsted
, Saeed R. Yazdi
, Arthur Merkel
, Lilia M. Ahrné^*

^*Corresponding author for this work

Publication: Contribution to journal › Journal article › peer-review

Abstract

Acid whey (AW) contains valuable minerals, such as calcium and magnesium. Electrodialysis (ED) is an efficient technology to recover these minerals; however, the less nutritional sodium will also be recovered during ED. AW was processed by nanofiltration prior to ED in order to change the ratio between the monovalent and divalent ions. The nano-filtration increased the efficiency of the ED process regarding recovery of Ca²⁺ and Mg²⁺ ions by 70% and 67%, respectively, while it did not affect the K⁺, Na⁺, phosphates and lactate. The spent energy was more effectively used to recover Ca²⁺ in the nano-filtrated AW.

Original language	English
Pages (from-to)	820-830
Number of pages	11
Journal	International Journal of Dairy Technology
Volume	75
Issue number	4
DOIs	https://doi.org/10.1111/1471-0307.12893
Publication status	Published - Nov 2022
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2022 The Authors. International Journal of Dairy Technology published by John Wiley & Sons Ltd on behalf of Society of Dairy Technology.

Keywords

Acid whey
Calcium
Electrodialysis
Lactic acid
Minerals
Nanofiltration

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10.1111/1471-0307.12893

Cite this

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title = "Improving electrodialysis separation efficiency of minerals from acid whey by nano-filtration pre-processing",

abstract = "Acid whey (AW) contains valuable minerals, such as calcium and magnesium. Electrodialysis (ED) is an efficient technology to recover these minerals; however, the less nutritional sodium will also be recovered during ED. AW was processed by nanofiltration prior to ED in order to change the ratio between the monovalent and divalent ions. The nano-filtration increased the efficiency of the ED process regarding recovery of Ca2+ and Mg2+ ions by 70\% and 67\%, respectively, while it did not affect the K+, Na+, phosphates and lactate. The spent energy was more effectively used to recover Ca2+ in the nano-filtrated AW.",

keywords = "Acid whey, Calcium, Electrodialysis, Lactic acid, Minerals, Nanofiltration",

author = "Nielsen, \{Emilie N.\} and Skibsted, \{Leif H.\} and Yazdi, \{Saeed R.\} and Arthur Merkel and Ahrn{\'e}, \{Lilia M.\}",

note = "Publisher Copyright: {\textcopyright} 2022 The Authors. International Journal of Dairy Technology published by John Wiley \& Sons Ltd on behalf of Society of Dairy Technology.",

year = "2022",

month = nov,

doi = "10.1111/1471-0307.12893",

language = "English",

volume = "75",

pages = "820--830",

journal = "International Journal of Dairy Technology",

issn = "1364-727X",

publisher = "WILEY",

number = "4",

}

TY - JOUR

T1 - Improving electrodialysis separation efficiency of minerals from acid whey by nano-filtration pre-processing

AU - Nielsen, Emilie N.

AU - Skibsted, Leif H.

AU - Yazdi, Saeed R.

AU - Merkel, Arthur

AU - Ahrné, Lilia M.

PY - 2022/11

Y1 - 2022/11

N2 - Acid whey (AW) contains valuable minerals, such as calcium and magnesium. Electrodialysis (ED) is an efficient technology to recover these minerals; however, the less nutritional sodium will also be recovered during ED. AW was processed by nanofiltration prior to ED in order to change the ratio between the monovalent and divalent ions. The nano-filtration increased the efficiency of the ED process regarding recovery of Ca2+ and Mg2+ ions by 70% and 67%, respectively, while it did not affect the K+, Na+, phosphates and lactate. The spent energy was more effectively used to recover Ca2+ in the nano-filtrated AW.

AB - Acid whey (AW) contains valuable minerals, such as calcium and magnesium. Electrodialysis (ED) is an efficient technology to recover these minerals; however, the less nutritional sodium will also be recovered during ED. AW was processed by nanofiltration prior to ED in order to change the ratio between the monovalent and divalent ions. The nano-filtration increased the efficiency of the ED process regarding recovery of Ca2+ and Mg2+ ions by 70% and 67%, respectively, while it did not affect the K+, Na+, phosphates and lactate. The spent energy was more effectively used to recover Ca2+ in the nano-filtrated AW.

KW - Acid whey

KW - Calcium

KW - Electrodialysis

KW - Lactic acid

KW - Minerals

KW - Nanofiltration

UR - https://res.slu.se/id/publ/c81d55c5-f6af-491e-a259-b37b10cdd255

U2 - 10.1111/1471-0307.12893

DO - 10.1111/1471-0307.12893

M3 - Journal article

AN - SCOPUS:85133333350

SN - 1364-727X

VL - 75

SP - 820

EP - 830

JO - International Journal of Dairy Technology

JF - International Journal of Dairy Technology

IS - 4

ER -

Improving electrodialysis separation efficiency of minerals from acid whey by nano-filtration pre-processing

Abstract

Bibliographical note

Keywords

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