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Reverse osmosis for the recovery of boric acid from the primary coolant at nuclear power plants

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F16%3AN0000089" target="_blank" >RIV/26722445:_____/16:N0000089 - isvavai.cz</a>

  • Alternative codes found

    RIV/26722445:_____/16:N0000030

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.nucengdes.2016.01.018" target="_blank" >http://dx.doi.org/10.1016/j.nucengdes.2016.01.018</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.nucengdes.2016.01.018" target="_blank" >10.1016/j.nucengdes.2016.01.018</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Reverse osmosis for the recovery of boric acid from the primary coolant at nuclear power plants

  • Original language description

    At nuclear power plants (NPP), evaporators are used for the treatment of primary coolant and other liquid radioactive waste containing H3BO3. Because the operation of evaporators is expensive, a number of more cost-effective alternatives has been considered, one of which is reverse osmosis. We tested reverse osmosis modules from several manufactures on a batch laboratory apparatus. SEM images of the tested membranes were taken to distinguish the differences between the membranes. Water permeability through membranes was evaluated from the experiments with pure water. The experiments were performed with feed solutions containing various concentrations of H3BO3 in a range commonly occurring in radioactive waste. The pH of the feed solutions ranged from 5.2 to 11.2. Our results confirmed that the pH of the feed solution plays the most important role in membrane separation efficiency of H3BO3. Certain modifications to the pH of the feed solution were needed to enable the tested membranes to concentrate the H3BO3 in the retentate stream, separate from the pure water in the permeate stream. On this basis, we propose the configuration of and operational conditions for a reverse osmosis unit at NPP.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    JF - Nuclear energy

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2016

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Nuclear Engineering and Design

  • ISSN

    0029-5493

  • e-ISSN

  • Volume of the periodical

    300

  • Issue of the periodical within the volume

    April

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    10

  • Pages from-to

    107-116

  • UT code for WoS article

    000372840400011

  • EID of the result in the Scopus database