Study on electrodeionization with ion-exchange microgranulate in the diluting chamber

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F16%3AN0000045" target="_blank" >RIV/28676092:_____/16:N0000045 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Study on electrodeionization with ion-exchange microgranulate in the diluting chamber

Popis výsledku v původním jazyce

Pellets made of a blend of ground ion-exchange resin and polyethylene binder were tested as a filler material in the diluting chambers of an electrodeionization stack. The results obtained were compared with the conventional processes of electrodialysis and electrodeionization. It has been found the presented modification of the electrodeionization process cannot compete with both the conventional electrodialysis and electrodeionization processes. The poor performance of such a design is mainly due to the chosen shape of the pellets (cylinder) and their poor electrochemical properties. When operated at the same voltage per cell pair, conventional electrodeionization has been shown to be more efficient than electrodialysis in the range of electrolyte concentrations less than 0.5 – 1.5 kg m-3. Since the voltage in industrial-scale electrodialysis stacks is limited due to concentration polarization or burning phenomena, typically to 1 – 1.5 V/cell pair, while electrodeionization stacks may be operated at a higher voltage without any problems, electrodeionization has been found more efficient in the whole studied electrolyte concentration range of 0 – 3.5 kg m-3.

Název v anglickém jazyce

Study on electrodeionization with ion-exchange microgranulate in the diluting chamber

Popis výsledku anglicky

Pellets made of a blend of ground ion-exchange resin and polyethylene binder were tested as a filler material in the diluting chambers of an electrodeionization stack. The results obtained were compared with the conventional processes of electrodialysis and electrodeionization. It has been found the presented modification of the electrodeionization process cannot compete with both the conventional electrodialysis and electrodeionization processes. The poor performance of such a design is mainly due to the chosen shape of the pellets (cylinder) and their poor electrochemical properties. When operated at the same voltage per cell pair, conventional electrodeionization has been shown to be more efficient than electrodialysis in the range of electrolyte concentrations less than 0.5 – 1.5 kg m-3. Since the voltage in industrial-scale electrodialysis stacks is limited due to concentration polarization or burning phenomena, typically to 1 – 1.5 V/cell pair, while electrodeionization stacks may be operated at a higher voltage without any problems, electrodeionization has been found more efficient in the whole studied electrolyte concentration range of 0 – 3.5 kg m-3.

Druh

D - Stať ve sborníku

CEP obor

JP - Průmyslové procesy a zpracování

OECD FORD obor

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Projekt

<a href="/cs/project/LO1418" target="_blank" >LO1418: Progresivní rozvoj Membránového inovačního centra</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.

Název statě ve sborníku

Workshop of Students’ Presentations 2016, Membranes and Membrane Processes

ISBN

978-80-904517-8-0

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

Czech Membrane Platform

Místo vydání

Straz pod Ralskem, Czech Republic

Místo konání akce

Straz pod Ralskem, Czech Republic

Datum konání akce

12. 10. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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