ELECTRODIALYSIS OF HIGHLY CONCENTRATED SOLUTIONS OF INORGANIC SALTS AND ITS OPERATIONAL LIMITS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F18%3AN0000091" target="_blank" >RIV/28676092:_____/18:N0000091 - isvavai.cz</a>
Result on the web
<a href="http://www.czemp.cz/cs/aktuality/pozvanka-na-workshop-studentskych-praci-2018" target="_blank" >http://www.czemp.cz/cs/aktuality/pozvanka-na-workshop-studentskych-praci-2018</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
ELECTRODIALYSIS OF HIGHLY CONCENTRATED SOLUTIONS OF INORGANIC SALTS AND ITS OPERATIONAL LIMITS
Original language description
As natural sources of freshwater slowly disappear and surface water quality decreases, more and more stringent legislation is applied in waste water treatment. Soon neutralized brine will not be allowed to discharge, and therefore an economically viable brine treatment will be highly desirable. Electrodialysis presents an interesting technology as it can produce highly concentrated solutions that can be evaporated and hence produce zero liquid waste. In this work various inorganic salts were tested on a laboratory scale electrodialysis unit, in order to find its operational limits. It was observed that the final maximum concentration may differ significantly between electrolytes, but typically 200 g/kg should be achievable. Interestingly, electric current and therefore electrodialysis performance was decidedly smaller in the case of magnesium salts, when compared to potassium salts. Oversaturated solution was formed in the case of KNO3. These findings support the idea that electrodialysis may have its firm position in zero liquid discharge systems, but it is a complex technology that is best paired with proper pre-treatment and final evaporation step.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20402 - Chemical process engineering
Result continuities
Project
<a href="/en/project/LO1418" target="_blank" >LO1418: Progressive development of the Membrane Innovation Centre</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Workshop of Students´ Presentations 2018
ISBN
978-80-906831-3-6
ISSN
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e-ISSN
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Number of pages
2
Pages from-to
50-51
Publisher name
Czech Membrane Platform
Place of publication
Česká Lípa
Event location
Česká Lípa
Event date
Oct 24, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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