| Attributes | Values |
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| rdf:type
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| Description
| - Global production of cheese and casein whey is around 190 mil. t per year. Demineralization of is desirable in some applications of whey. ED has a great potential as an effective, fast and energy saving method. After ED we obtain the diluate (demineralised whey) and concentrate containing salts from whey. Conductivity of concentrate is usually maintained constant level to prevent precipitation of salts with low solubility. Large volume of concentrate containing diluted salts complicates its manipulation and further processing. The aim of this work was therefore to minimise the concentrate volume. Salts of monovalent ions (Na+, K+) are usually more soluble in comparison with divalent ions (Ca2+, Mg2+). We confirmed previously that the monovalent ions are removed preferentially by ED and we can therefore suppose higher solubility of salts in concentrate from in initial stage of demineralisation process. Higher solubility of salts allows decreasing the amount of water added to concentrate and reducing of its volume. Unit ED-Z mini (MemBrain s r.o., Czech Republic) with heterogeneous ion-exchange Ralex(R) membranes AMH-PES and CMH-PES (Mega a.s., Czech Republic) was used for ED experiments. Raw material for ED was recombined whey powder with dry matter 15.5 %, ash content 1.3 % and initial conductivity 10.5 mS.cm-1. In case of 90 % demineralization which corresponds final conductivity of diluate 0.67 mS.cm-1 the maximal conductivity of concentrate can reach 20 mS.cm-1 at pH=5 without risk of precipitation of salts. The maximal conductivity of concentrate is 50 mS.cm-1 for target 70% and 50% demineralization (i.e. conductivity 2.06 and 3.87 mS.cm-1 at pH=5). It means that for lower demineralization degree was confirmed substantial increase of acceptable concentrate conductivity. This technique allows significant reduction of concentrate volume in range of 25 to 60% depending on level of desalination and concentrate pH.
- Global production of cheese and casein whey is around 190 mil. t per year. Demineralization of is desirable in some applications of whey. ED has a great potential as an effective, fast and energy saving method. After ED we obtain the diluate (demineralised whey) and concentrate containing salts from whey. Conductivity of concentrate is usually maintained constant level to prevent precipitation of salts with low solubility. Large volume of concentrate containing diluted salts complicates its manipulation and further processing. The aim of this work was therefore to minimise the concentrate volume. Salts of monovalent ions (Na+, K+) are usually more soluble in comparison with divalent ions (Ca2+, Mg2+). We confirmed previously that the monovalent ions are removed preferentially by ED and we can therefore suppose higher solubility of salts in concentrate from in initial stage of demineralisation process. Higher solubility of salts allows decreasing the amount of water added to concentrate and reducing of its volume. Unit ED-Z mini (MemBrain s r.o., Czech Republic) with heterogeneous ion-exchange Ralex(R) membranes AMH-PES and CMH-PES (Mega a.s., Czech Republic) was used for ED experiments. Raw material for ED was recombined whey powder with dry matter 15.5 %, ash content 1.3 % and initial conductivity 10.5 mS.cm-1. In case of 90 % demineralization which corresponds final conductivity of diluate 0.67 mS.cm-1 the maximal conductivity of concentrate can reach 20 mS.cm-1 at pH=5 without risk of precipitation of salts. The maximal conductivity of concentrate is 50 mS.cm-1 for target 70% and 50% demineralization (i.e. conductivity 2.06 and 3.87 mS.cm-1 at pH=5). It means that for lower demineralization degree was confirmed substantial increase of acceptable concentrate conductivity. This technique allows significant reduction of concentrate volume in range of 25 to 60% depending on level of desalination and concentrate pH. (en)
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| Title
| - Reduction of concentrate volume during electrodialysis of whey.
- Reduction of concentrate volume during electrodialysis of whey. (en)
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| skos:prefLabel
| - Reduction of concentrate volume during electrodialysis of whey.
- Reduction of concentrate volume during electrodialysis of whey. (en)
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| skos:notation
| - RIV/60461373:22330/12:43894904!RIV13-MSM-22330___
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| http://linked.open...avai/predkladatel
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22330/12:43894904
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - conductivity; concentrate; whey; electrodialysis (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
| |
| http://linked.open...i/riv/mistoVydani
| |
| http://linked.open...i/riv/nazevZdroje
| - 20th International Congress of Chemical and Process Engineering
|
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Diblíková, Lenka
- Čurda, Ladislav
- Kinčl, Jan
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| http://linked.open...vavai/riv/typAkce
| |
| http://linked.open.../riv/zahajeniAkce
| |
| number of pages
| |
| http://purl.org/ne...btex#hasPublisher
| |
| https://schema.org/isbn
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| http://localhost/t...ganizacniJednotka
| |
| is http://linked.open...avai/riv/vysledek
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