Electrodialysis as part of the integrated membrane process for landfill leachate treatment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F19%3A39914989" target="_blank" >RIV/00216275:25310/19:39914989 - isvavai.cz</a>
Result on the web
<a href="https://www.deswater.com/vol.php?vol=150&oth=150|0|May%20|2019" target="_blank" >https://www.deswater.com/vol.php?vol=150&oth=150|0|May%20|2019</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5004/dwt.2019.23511" target="_blank" >10.5004/dwt.2019.23511</a>
Alternative languages
Result language
angličtina
Original language name
Electrodialysis as part of the integrated membrane process for landfill leachate treatment
Original language description
Desalination of leachates from municipal and hazardous waste landfills using electrodialysis was studied experimentally. The process was integrated into the complex technology for leachate treatment to reduce the concentration of inorganic salts prior to the reverse osmosis (RO). The technology principle is as follows: electrodialysis minimizes osmotic pressure of RO feed, thus the process can be operated economically using low-pressure and fouling-resistant RO membranes and low salinity RO concentrate can be easily recycled back into the landfill body. The pilot batch electrodialysis experiments were carried out with several types of leachate wastewaters which were collected from two municipal waste landfills and one landfill for the disposal of hazardous waste. The results of the experiments demonstrate that the electrodialysis integrated into the treatment system allows the reduction of the dissolved solids content in the leachate to 18%-27% of the initial value. Most of the organic matter remains in the leachate (diluate) together with multivalent ions, especially Fe3+, Ba2+, Sr2+ and B3+. If the concentrate pH was kept as low as necessary to achieve Langelier saturation index below -0.2, then it was possible to realize the process with the minimum ratio of the concentrate to diluate volume. An effective method to recover the system from physical and chemical reversible fouling using alkaline cleaning in place was also found and verified.
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
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
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
Desalination and Water Treatment
ISSN
1944-3994
e-ISSN
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Volume of the periodical
150
Issue of the periodical within the volume
May
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
49-57
UT code for WoS article
000463027500004
EID of the result in the Scopus database
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