A Comparison of Metal-Loaded DOW3N Ion Exchangers for Removal of Perchlorate from Water
| Autor: | Steven E. Mylon, Dongye Zhao, Arthur D. Kney, Paul S. Dimick, Javad Tavakoli |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Chelating resin
Ion exchange Chemistry Process Chemistry and Technology General Chemical Engineering Kinetics Inorganic chemistry Filtration and Separation General Chemistry Metal Perchlorate chemistry.chemical_compound Transition metal visual_art visual_art.visual_art_medium Water treatment Selectivity |
| Zdroj: | Separation Science and Technology. 43:2343-2362 |
| ISSN: | 1520-5754 0149-6395 |
| DOI: | 10.1080/01496390802118921 |
| Popis: | In this work, an alternative class of perchlorate selective ion exchangers (known as polymeric ligand exchangers, PLEs) were prepared by loading six transition metals (Cu(II), Co(II), Zn(II), Ni(II), Fe(II), and Fe(III)) onto a commercially available chelating resin Dowex M4195 (DOW3N). The resultant PLEs (DOW3N-Me, where Me = one of the metals) were tested with respect to their perchlorate selectivity, capacity, kinetics, and regeneration efficiency through a series of batch and column experiments. Within this group of PLEs, DOW3N-Cu(II) showed the highest perchlorate capacity; all four PLEs had similar perchlorate sorption kinetics; and DOW3N-Fe(III) demonstrated better regeneration potential. |
| Databáze: | OpenAIRE |
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