The effect of acid whey composition on the removal of calcium and lactate during electrodialysis

Nielsen, Erik Tetens; Merkel, Arthur; Yazdi, Saeed Rahimi; Ahrné, Lı́lia

doi:10.1016/j.idairyj.2021.104985

Cited by 20 publications

(34 citation statements)

References 28 publications

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“…No difference was found in the transport of Ca 2+ and Mg 2+ . A similar trend has previously been shown in AW, sweet whey and nano-filtration retentate of milk (Diblíková et al 2013;Chen et al 2016;Rasmussen et al 2020;Nielsen et al 2021). In NFAW, the K + and Na + also migrated prior to the divalent ions.…”

Section: Cation Transport During Ed Processsupporting

confidence: 85%

“…Nielsen et al. (2021), has previously removed 82% lactate from skyr AW, while Chen et al. (2016) removed 74% lactate from UF permeate from AW.…”

Section: Resultsmentioning

confidence: 99%

“…It has earlier been shown that ED can be used to remove lactate, the conjugate base of lactic acid, from AW. Nielsen et al (2021), has previously removed 82% lactate from skyr AW, while Chen et al ( 2016) removed 74% lactate from UF permeate from AW. The lower removal of lactate from NFAW is a result of a combination of the higher initial lactic acid concentration and higher conductivity in NFAW compared to AW (Talebi et al 2020;Nielsen et al 2021).…”

Section: Anion Transport During Electrodialysismentioning

confidence: 99%

“…The composition of AW is highly important for the ED efficiency, and changes in concentrations and chemical speciation of the ions highly affect the separation efficiency (Nielsen et al. 2021; Nielsen et al. 2022).…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have shown that ED is an efficient process for separating ions in AW (Chen et al 2016;Dufton et al 2018;Talebi et al 2020;Nielsen et al 2021). The composition of AW is highly important for the ED efficiency, and changes in concentrations and chemical speciation of the ions highly affect the separation efficiency (Nielsen et al 2021;Nielsen et al 2022). A separation of Ca 2+ and Mg 2+ from AW is of interest during ED.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

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

Nielsen

Skibsted

Yazdi

et al. 2022

Int J of Dairy Tech

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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 Ca 2+ and Mg 2+ 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 Ca 2+ in the nano-filtrated AW.

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Section: Cation Transport During Ed Processsupporting

confidence: 85%

“…Nielsen et al. (2021), has previously removed 82% lactate from skyr AW, while Chen et al. (2016) removed 74% lactate from UF permeate from AW.…”

Section: Resultsmentioning

confidence: 99%