Adsorption of Rare Earth Elements from Aqueous Solutions Using Geopolymers†
Željka Fiket 1,*
, Ana Galović 2, Gordana Medunić 3, Martina Furdek Turk 1, Maja Ivanić 1, Matej Dolenec 4, Ivica Biljan 2, Aleš Šoster 4 and Goran Kniewald 1
, Ana Galović 2, Gordana Medunić 3, Martina Furdek Turk 1, Maja Ivanić 1, Matej Dolenec 4, Ivica Biljan 2, Aleš Šoster 4 and Goran Kniewald 1
1
Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
2
Department of Biology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia
3
Department of Geology, Faculty of Science, University of Zagreb, Horvatovac 95, 10000 Zagreb, Croatia
4
Department of Geology, Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva c. 12, 1000 Ljubljana, Slovenia
*
Author to whom correspondence should be addressed.
†
Presented at the 1st International Electronic Conference on Geosciences (IECG 2018), 15–30 June 2018; Available online: https://sciforum.net/conference/IECG_2018.
Proceedings 2018, 2(10), 567; https://doi.org/10.3390/IECG_2018-05349
Published: 14 June 2018
(This article belongs to the Proceedings of The International Electronic Conference on Geosciences)
PDF [457 KB, uploaded 6 August 2018]
Abstract
Rare earth elements, i.e., lanthanides, are important components of many recently developed technology applications. However, their increasing use in the industrial sector, medicine, and agriculture over the last few decades has provided them with the title of “new pollutants”. Different methods are now applied for the removal of various pollutants from wastewaters, whereby the emphasis is placed on adsorption due to its simplicity, high efficiency, and low cost. In the present study, geopolymers prepared from coal ash were examined regarding their capacity for the adsorption of lanthanides from model solutions. The obtained results indicate the efficient removal of lanthanides by prepared geopolymers, depicting them as effective adsorbents for this group of elements.Keywords:
rare earth elements; geopolymers; adsorption
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Fiket, Ž.; Galović, A.; Medunić, G.; Turk, M.F.; Ivanić, M.; Dolenec, M.; Biljan, I.; Šoster, A.; Kniewald, G. Adsorption of Rare Earth Elements from Aqueous Solutions Using Geopolymers. Proceedings 2018, 2, 567.
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