Competition among rare earth elements on sorption onto six seaweeds
| Autor: | J. M. Soares, João L. Pinto, Marcelo Costa, Eduarda Pereira, Nicole Ferreira, José Pinheiro-Torres, Bruno Henriques, Thainara Viana, Mariana Dias, Carlos Vale |
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| Rok vydání: | 2021 |
| Předmět: |
media_common.quotation_subject
Fucus vesiculosus 02 engineering and technology Wastewater 010402 general chemistry E-waste 01 natural sciences Osmundea pinnatifida Competition (biology) Algae Recovery Geochemistry and Petrology media_common biology Chemistry Sorption General Chemistry 021001 nanoscience & nanotechnology biology.organism_classification Bioaccumulation 0104 chemical sciences Ulva intestinalis Fucus spiralis Environmental chemistry Ulva lactuca 0210 nano-technology Removal Marine macroalgae |
| Zdroj: | Journal of Rare Earths. 39:734-741 |
| ISSN: | 1002-0721 |
| DOI: | 10.1016/j.jre.2020.09.025 |
| Popis: | Sorption has been proposed as a promising approach towards a sustainable water decontamination and recently to the recycling of rare earth elements (REE). Although living seaweed have been shown to be capable of removing REE from contaminated solutions, no studies have yet compared the effects of REE competition on sorption onto different groups of seaweed. These effects were analysed in the present study by exposing six living seaweeds (Ulva lactuca, Ulva intestinalis, Fucus spiralis, Fucus vesiculosus, Gracilaria sp. and Osmundea pinnatifida) (3 g/L, fresh weight) to mono-element and multi-element solutions of Y, La, Ce, Pr, Nd, Eu, Gd, Tb and Dy (1 μmol/L). Results show a preference towards light REE in mono-element solutions, which is reduced when in competition with other REE. The competitive effect is less pronounced in heavy REE indicating that these are still able to bind to the macroalgae despite the presence of competing ions. Contrary to water content (%), seaweed specific surface area (cm2/g) shows to be an important factor in the sorption of REE, since larger surface area is associated with higher removal and larger competitive effect. |
| Databáze: | OpenAIRE |
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