Adsorption of Rare Earth Elements from Aqueous Solutions Using Geopolymers

Proceedings

Biljan, Ivica¹  Ivanić, Maja²  Galović, Ana³  Turk, Martina Furdek⁴  Medunić, Gordana⁵  Fiket, Željka⁶  Dolenec, Matej⁷ 

[1] Available online: https://sciforum.net/conference/IECG_2018;Author to whom correspondence should be addressed.;Department of Biology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia;Department of Geology, Faculty of Natural Sciences and Engineering, University of Ljubljana, AÅ¡kerčeva c. 12, 1000 Ljubljana, Slovenia;Department of Geology, Faculty of Science, University of Zagreb, Horvatovac 95, 10000 Zagreb, Croatia;Division for Marine and Environmental Research, Ruđer BoÅ¡ković Institute, Bijenička 54, 10000 Zagreb, Croatia;Presented at the 1st International Electronic Conference on Geosciences (IECG 2018), 15–30 June 2018

关键词: rare earth elements;    geopolymers;    adsorption;   

DOI  :  10.3390/IECG_2018-05349

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY