Separation of Organic Materials and Metallic Elements from Marine Waters by the Operation of Gas-Bubble Extraction |
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| Authors: | G. Loglio P. Cellini Legittimo G. Mori U. Tesei R. Cini |
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| Affiliation: | a Laboratory of Technical Physical Chemistry, University of Florence, Florence, Italyb Department of Pharmaceutical Sciences, University of Florence, Florence, Italy |
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| Abstract: | A laboratory experimental investigation was conducted to define the action of rising bubbles with respect to heavy-metal enrichment at the sea surface. Analytical data (HMDE-differential pulse anodic stripping voltammetry technique) show possible enrichments of organic-bound Zn, Cu, Cd and Pb at the top of a laboratory bubble-extraction column filled with water samples collected in the Southern Tyrrhenian Sea. In consideration of analogy between natural and laboratory bubble-extraction processes, laboratory results, i.e., enriched-over-original concentration ratios, make it possible to assess the intrinsic heavy-metal flotation capability in marine waters. |
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