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Separation and purification of lanthanum from other rare-earth (RE) elements are highly complex processes comprising several steps of extraction using organic solvents or ion-exchange resins at high costs. In order to study the biosorption process as an alternative for conventional lanthanum recovery, this work investigated some basic aspects of lanthanum-Sargassum biomass interactions in batch equilibrium...
Biosorption of neodymium in batch experiments took ~2 h to achieve the equilibrium biosorbent-metal for all microorganisms tested. The best biosorption coefficient at a constant pH value of 1.5 was obtained using the microalgae Monoraphidium sp. (1511 mg g -1 cell), followed by Bakers' yeast (313 mg g -1 cell), Penicillium sp. (178 mg g -1 cell), and activated...
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