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 af dette arbejde

Ingredient and Dairy Technology

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

11 Citationer (Scopus)

33 Downloads (Pure)

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.

Originalsprog	Engelsk
Tidsskrift	International Journal of Dairy Technology
Vol/bind	75
Udgave nummer	4
Sider (fra-til)	820-830
Antal sider	11
ISSN	1364-727X
DOI	https://doi.org/10.1111/1471-0307.12893
Status	Udgivet - 2022

Bibliografisk note

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

Adgang til dokumentet

10.1111/1471-0307.12893Licens: CC BY-NC-ND

FulltextForlagets udgivne version, 888 KBLicens: CC BY-NC-ND

Citationsformater

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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 = "Funding Information: The authors would like to acknowledge the Platform for Novel Gentle Processing supported by the Dairy Rationalisation Fund (DDRF), Copenhagen University and Arla Foods for funding this study. 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",

doi = "10.1111/1471-0307.12893",

language = "English",

volume = "75",

pages = "820--830",

journal = "International Journal of Dairy Technology",

issn = "1364-727X",

publisher = "Wiley-Blackwell",

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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.

N1 - Funding Information: The authors would like to acknowledge the Platform for Novel Gentle Processing supported by the Dairy Rationalisation Fund (DDRF), Copenhagen University and Arla Foods for funding this study. Publisher Copyright: © 2022 The Authors. International Journal of Dairy Technology published by John Wiley & Sons Ltd on behalf of Society of Dairy Technology.

PY - 2022

Y1 - 2022

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

U2 - 10.1111/1471-0307.12893

DO - 10.1111/1471-0307.12893

M3 - Journal article

AN - SCOPUS:85133333350

VL - 75

SP - 820

EP - 830

JO - International Journal of Dairy Technology

JF - International Journal of Dairy Technology

SN - 1364-727X

IS - 4

ER -