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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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

  • 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