Removal of Metals and Radionuclides Using Apatite and Other Natural Sorbents
| Autor: | Malcolm D. Siegel, Bruce M. Thomson, Charles Baldwin, Robert D. Busch, Christy L. Smith |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Bone char
Environmental Engineering Chemistry chemistry.chemical_element Sorption Americium Phosphate Apatite chemistry.chemical_compound Phosphorite Environmental chemistry visual_art visual_art.visual_art_medium Environmental Chemistry Water treatment General Environmental Science Civil and Structural Engineering Nuclear chemistry Waste disposal |
| Zdroj: | Journal of Environmental Engineering. 129:492-499 |
| ISSN: | 1943-7870 0733-9372 |
| Popis: | Treatment of waste water for removal of low levels of actinides, particularly plutonium, uranium, and americium, and hazardous metals has been and continues to be a challenge. This study evaluated the use of apatite and other natural materials for use as sorbents to treat water streams containing As, Am, Pu, Se, Tc, and U. Nine sorbents were tested including natural and synthetic apatites, tri-calcium phosphate, bone char, and activated magnetite. The sorption properties were tested in batch studies and in column tests. There was moderate sorption of As, Se, Sr, Cs, and Tc, but very good removal of U and Pu by the phosphate adsorbents. The Am results were inconclusive. The synthetic apatites had higher capacities than the natural apatites from phosphate rock and fish bones. |
| Databáze: | OpenAIRE |
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