Investigation of the structural and charge properties of a polyamide nanofiltration membrane

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39911017" target="_blank" >RIV/00216275:25310/17:39911017 - 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

Investigation of the structural and charge properties of a polyamide nanofiltration membrane

Popis výsledku v původním jazyce

In this present work, a polyamide thin-film composite NF membrane (AFC 30) was used for characterization of the structural and charge surface properties. The structural properties are the pore radius (rp) and membrane thickness to porosity ratio (∆x/Ak) respectively. The interpretation of values from the different uncharged solutes rejection allows one to determine the structural properties of AFC 30. This was done by using modelling of rejection of the uncharged solutes with the aid of the Donnan steric partitioning model (DSPM). The fixed charge density on the membrane surface was determined by experiments with sodium chloride at different concentrations. The data from such a sodium chloride experiment(s) were used to calculate the effective charge density (ФX) by using the Spiegler–Kedem model together with a charge model called Teorell–Meyer–Sievers (TMS). Then, it has been revealed that the membrane charge depends solely on the salt concentration in the solution because of the ion adsorption onto the membrane surface.

Název v anglickém jazyce

Investigation of the structural and charge properties of a polyamide nanofiltration membrane

Popis výsledku anglicky

In this present work, a polyamide thin-film composite NF membrane (AFC 30) was used for characterization of the structural and charge surface properties. The structural properties are the pore radius (rp) and membrane thickness to porosity ratio (∆x/Ak) respectively. The interpretation of values from the different uncharged solutes rejection allows one to determine the structural properties of AFC 30. This was done by using modelling of rejection of the uncharged solutes with the aid of the Donnan steric partitioning model (DSPM). The fixed charge density on the membrane surface was determined by experiments with sodium chloride at different concentrations. The data from such a sodium chloride experiment(s) were used to calculate the effective charge density (ФX) by using the Spiegler–Kedem model together with a charge model called Teorell–Meyer–Sievers (TMS). Then, it has been revealed that the membrane charge depends solely on the salt concentration in the solution because of the ion adsorption onto the membrane surface.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

20402 - Chemical process engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Scientific Papers of the University of Pardubice, Series A, Faculty of Chemical Technology

ISSN

1211-5541

e-ISSN

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Svazek periodika

23

Číslo periodika v rámci svazku

květen

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

19

Strana od-do

225-243

Kód UT WoS článku

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EID výsledku v databázi Scopus

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