Comparison of different combinations of heterogeneous and homogeneous bipolar and ion exchange membranes in lab-scale electrodialysis stack

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F25%3AN0000011" target="_blank" >RIV/28676092:_____/25:N0000011 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.tandfonline.com/doi/full/10.1080/00986445.2025.2464021" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/00986445.2025.2464021</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/00986445.2025.2464021" target="_blank" >10.1080/00986445.2025.2464021</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of different combinations of heterogeneous and homogeneous bipolar and ion exchange membranes in lab-scale electrodialysis stack

Popis výsledku v původním jazyce

Electrodialysis with bipolar membranes (EDBM) process can be utilized to generate acids and bases from their corresponding salts. This technique has diverse applications, including the reclamation of industrial wastewater, pH adjustment of various substances, and many others contributing to environmental conservation efforts. The objective of this study was to evaluate three different bipolar membranes (BMs) by testing them in a laboratory-scale EDBM setup along with several ion-exchange membranes. The results provide valuable insights into the utility of these membrane configurations across various industry sectors. The results indicated that the primary limitations of heterogeneous BMs are their high electrical resistances and limited selectivities. However, owing to their low cost and suitability for food-related applications, they are particularly useful in single-pass flow regimes or situations where minor pH modifications are sufficient, especially in food and beverage production. For scenarios where the production of high-concentration acids/bases is essential but purity is less critical, such as in CO2 capture technology or flue gas desulfurization, application of heterogeneous BMs along with homogeneous ion exchange membranes is recommended. In contrast, stacks composed entirely of homogeneous membranes are recommended for processes that require extremely pure and concentrated outputs as well as high water yields.

Název v anglickém jazyce

Comparison of different combinations of heterogeneous and homogeneous bipolar and ion exchange membranes in lab-scale electrodialysis stack

Popis výsledku anglicky

Electrodialysis with bipolar membranes (EDBM) process can be utilized to generate acids and bases from their corresponding salts. This technique has diverse applications, including the reclamation of industrial wastewater, pH adjustment of various substances, and many others contributing to environmental conservation efforts. The objective of this study was to evaluate three different bipolar membranes (BMs) by testing them in a laboratory-scale EDBM setup along with several ion-exchange membranes. The results provide valuable insights into the utility of these membrane configurations across various industry sectors. The results indicated that the primary limitations of heterogeneous BMs are their high electrical resistances and limited selectivities. However, owing to their low cost and suitability for food-related applications, they are particularly useful in single-pass flow regimes or situations where minor pH modifications are sufficient, especially in food and beverage production. For scenarios where the production of high-concentration acids/bases is essential but purity is less critical, such as in CO2 capture technology or flue gas desulfurization, application of heterogeneous BMs along with homogeneous ion exchange membranes is recommended. In contrast, stacks composed entirely of homogeneous membranes are recommended for processes that require extremely pure and concentrated outputs as well as high water yields.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20401 - Chemical engineering (plants, products)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Chemical Engineering Communications

ISSN

0098-6445

e-ISSN

1563-5201

Svazek periodika

neuveden

Číslo periodika v rámci svazku

neuveden

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

1-9

Kód UT WoS článku

001422845600001

EID výsledku v databázi Scopus

2-s2.0-85219741884