Electrodialysis-based zero liquid discharge in industrial wastewater treatment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F19%3AN0000080" target="_blank" >RIV/28676092:_____/19:N0000080 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.2166/wst.2019.161" target="_blank" >https://doi.org/10.2166/wst.2019.161</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2166/wst.2019.161" target="_blank" >10.2166/wst.2019.161</a>
Alternative languages
Result language
angličtina
Original language name
Electrodialysis-based zero liquid discharge in industrial wastewater treatment
Original language description
Over the past few decades, reverse osmosis (RO) has been the dominant technology employed in zero liquid discharge (ZLD) systems for industrial wastewater treatment. However, RO is limited to a maximum operating salinity of about 75 g/kg. Electrodialysis (ED) is a potentially attractive option as it can achieve much higher concentrations, thereby reducing the capacity and energy demand of the subsequent evaporation step. Feed-and-bleed experiments were undertaken on a laboratory-scale ED stack using a series of model solutions based on the most common inorganic salts with the aim of determination maximum achievable concentrations. In addition, a straightforward review of how ED incorporation can affect ZLD process economics is presented. The maximum salt concentration achievable via ED ranged between 104.2 and 267.6 g/kg, with levels predominantly limited by water transport. The operational cost of an ED-based ZLD system for processing RO retentate was almost 20% lower than comparable processes employing high-efficiency RO and disc tubular RO. As the ED-based ZLD system appears economically preferable, and as maximum achievable concentrations greatly exceeded RO operating limits, it would appear to be a promising approach for bridging the gap between RO and evaporation, and may even eliminate the evaporation step altogether.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
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
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Water Science and Technology
ISSN
0273-1223
e-ISSN
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Volume of the periodical
neuveden
Issue of the periodical within the volume
květen
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
1580-1586
UT code for WoS article
000474351200016
EID of the result in the Scopus database
2-s2.0-85067449622