Water transport in heterogeneous ion-exchange membranes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F19%3AN0000039" target="_blank" >RIV/28676092:_____/19:N0000039 - 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

Water transport in heterogeneous ion-exchange membranes

Popis výsledku v původním jazyce

This research was focused on laboratory method for measurement of water transport through heterogeneous ion exchange membrane (IM) as its characteristics. This phenomenon can affect the efficiency of the electrodialysis process significantly. The water transport can be expressed as an average number of water molecules transported through the membrane by one ion. Cation and anion exchange membranes were characterized separately in two-compartment electrochemical cell with copper electrodes and solution CuSO4. This arrangement was used to determine the water transport by bivalent ions, mainly the sulphate anion. Results for some of commercially available IM were compared with IM with modified composition. The water transport through anion exchange membranes was between 6 and 10 molecules of water per sulphate anion. For cation exchange membranes the water transport was between 12 and 18 molecules of water per copper cation. So, the water transport number for bivalent ions was higher than the transport number of monovalent ions typically reported in the order of 4-8 in literature. The water transport number of some types of the IMs with modified composition was lower than the transport number of measured commercially available membranes.

Název v anglickém jazyce

Water transport in heterogeneous ion-exchange membranes

Popis výsledku anglicky

This research was focused on laboratory method for measurement of water transport through heterogeneous ion exchange membrane (IM) as its characteristics. This phenomenon can affect the efficiency of the electrodialysis process significantly. The water transport can be expressed as an average number of water molecules transported through the membrane by one ion. Cation and anion exchange membranes were characterized separately in two-compartment electrochemical cell with copper electrodes and solution CuSO4. This arrangement was used to determine the water transport by bivalent ions, mainly the sulphate anion. Results for some of commercially available IM were compared with IM with modified composition. The water transport through anion exchange membranes was between 6 and 10 molecules of water per sulphate anion. For cation exchange membranes the water transport was between 12 and 18 molecules of water per copper cation. So, the water transport number for bivalent ions was higher than the transport number of monovalent ions typically reported in the order of 4-8 in literature. The water transport number of some types of the IMs with modified composition was lower than the transport number of measured commercially available membranes.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/FV40062" target="_blank" >FV40062: Zpracování průmyslových odpadních vod do nulového odtoku kapaliny (ZLD) pomocí elektrodialýzy</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

5

Strana od-do

142

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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