Measurement of external leaks of different types of ion-exchange membranes and spacers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F19%3AN0000093" target="_blank" >RIV/28676092:_____/19:N0000093 - isvavai.cz</a>

Výsledek na webu

<a href="http://sschi.chtf.stuba.sk/ssche_conference2019.html" target="_blank" >http://sschi.chtf.stuba.sk/ssche_conference2019.html</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of external leaks of different types of ion-exchange membranes and spacers

Popis výsledku v původním jazyce

One of the unwanted phenomena, which can occur during electrodialysis (ED), is external leaks. The aim of this work is to find a simple, repeatable procedure to evaluate external leaks of combination of different types of spacers and membranes, in order to determine compatibility of spacers and membrane materials. Leaks were measured on a simple cell which demonstrates the electrodialysis stack. The stack was tightened on the tensile testing machine. The force which the stack was tightened was c.a. 870 N. Then the leaks were measured at the temperature 25 °C and at different pressures (1.5, 2, 2.5 and 3 bar). The tests were done with three different polyethylene and polypropylene spacers and two heterogeneous membranes (RALEX® IM-PES and RALEX® IM-PP). In general, external leaks decreased with time. Leaks decreased almost to zero when tested for a long time. There was an assumption that the amount of leaks would depend on the mechanical properties of spacer materials. This assumption was not confirmed.

Název v anglickém jazyce

Measurement of external leaks of different types of ion-exchange membranes and spacers

Popis výsledku anglicky

One of the unwanted phenomena, which can occur during electrodialysis (ED), is external leaks. The aim of this work is to find a simple, repeatable procedure to evaluate external leaks of combination of different types of spacers and membranes, in order to determine compatibility of spacers and membrane materials. Leaks were measured on a simple cell which demonstrates the electrodialysis stack. The stack was tightened on the tensile testing machine. The force which the stack was tightened was c.a. 870 N. Then the leaks were measured at the temperature 25 °C and at different pressures (1.5, 2, 2.5 and 3 bar). The tests were done with three different polyethylene and polypropylene spacers and two heterogeneous membranes (RALEX® IM-PES and RALEX® IM-PP). In general, external leaks decreased with time. Leaks decreased almost to zero when tested for a long time. There was an assumption that the amount of leaks would depend on the mechanical properties of spacer materials. This assumption was not confirmed.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20402 - Chemical process engineering

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

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of 46th Conference of SSCHE

ISBN

978-80-8208-011-0

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

136

Název nakladatele

Slovak Society of Chemical Engineering

Místo vydání

Bratislava

Místo konání akce

Tatranské Matliare, Slovenská Republika

Datum konání akce

20. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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