Selective and Chemical-Free Removal of Toxic Heavy Metal Cations from Water Using Shock Ion Extraction
Name
1889889.pdf
Description
Accepted version
Size
3.98 MB
Format
Adobe PDF
Checksum (MD5)
186db5a9f0ba69e031d227e1988ca27f
Author(s)
Alkhadra, Mohammad A
Jordan, Matthew L
Tian, Huanhuan
Arges, Christopher G
Bazant, Martin Z
Date Issued
October 4, 2022
Journal
Environmental Science & Technology
Publisher
American Chemical Society
Citation
Environ. Sci. Technol. 2022, 56, 19, 14091–14098
Version
Author's final manuscript
Abstract
Electrochemical methods are known to have attractive features and capabilities when used for ion separations and water purification. In this study, we developed a new process called shock ion extraction (shock IX) for selective and chemical-free removal of toxic heavy metals from water. Shock IX is a hybrid process that combines shock electrodialysis (shock ED) and ion exchange using an ion exchange resin wafer (IERW), and this method can be thought of functionally as an electrochemically assisted variation of traditional ion exchange. In particular, shock IX exhibits greater ion removal and selectivity for longer periods of time, compared to the use of ion exchange alone. The use of an IERW in shock ED also increases multivalent ion selectivity, reduces energy consumption, and improves the hydrodynamics and scalability of the system.
MIT Department
Massachusetts Institute of Technology. Department of Mathematics
Massachusetts Institute of Technology. Department of Chemical Engineering
Terms of Use
Creative Commons Attribution-Noncommercial-ShareAlike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1021/acs.est.2c05042
