Pilot module for elektrodialysis - metathesis protected against shunt currents

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F17%3AN0000058" target="_blank" >RIV/28676092:_____/17:N0000058 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5004/dwt.2017.20446" target="_blank" >http://dx.doi.org/10.5004/dwt.2017.20446</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5004/dwt.2017.20446" target="_blank" >10.5004/dwt.2017.20446</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pilot module for elektrodialysis - metathesis protected against shunt currents

Popis výsledku v původním jazyce

Electrodialysis–metathesis is electromembrane process working with two diluting and two concentrating streams. Cations from the first diluate combine with anions from the second diluate and form the first concentrate stream, and vice versa, cations from the second diluate combine with anions from the first diluate and form the second concentrate stream. Due to presence of ion-exchange membranes in sealing area and high concentration differences and diluate conductivity lower than membrane’s, there occurs shunt current capable “burning the membranes” and decreasing the total current effectivity. In pilot module for electrodialysis – metathesis, a part of ion exchange membrane around distribution channels was replaced by electrically non conductive insert. This module was tested in the application of potassium nitrate production from ammonium nitrate and potassium chloride solutions. In parallel, the same tests were performed using standard pilot module without these treatments to be able to evaluate their impact on process performance. The module with protective treatments achieved almost 6 % higher total current efficiency and 6 % lower energy consumption in comparison with standard module.

Název v anglickém jazyce

Pilot module for elektrodialysis - metathesis protected against shunt currents

Popis výsledku anglicky

Electrodialysis–metathesis is electromembrane process working with two diluting and two concentrating streams. Cations from the first diluate combine with anions from the second diluate and form the first concentrate stream, and vice versa, cations from the second diluate combine with anions from the first diluate and form the second concentrate stream. Due to presence of ion-exchange membranes in sealing area and high concentration differences and diluate conductivity lower than membrane’s, there occurs shunt current capable “burning the membranes” and decreasing the total current effectivity. In pilot module for electrodialysis – metathesis, a part of ion exchange membrane around distribution channels was replaced by electrically non conductive insert. This module was tested in the application of potassium nitrate production from ammonium nitrate and potassium chloride solutions. In parallel, the same tests were performed using standard pilot module without these treatments to be able to evaluate their impact on process performance. The module with protective treatments achieved almost 6 % higher total current efficiency and 6 % lower energy consumption in comparison with standard module.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20401 - Chemical engineering (plants, products)

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

2017

Kód důvěrnosti údajů

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

Název periodika

DESALINATION AND WATER TREATMENT

ISSN

1944-3994

e-ISSN

—

Svazek periodika

2017

Číslo periodika v rámci svazku

75

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

320-324

Kód UT WoS článku

000404396100036

EID výsledku v databázi Scopus

2-s2.0-85021055354