Browse > Article
http://dx.doi.org/10.5392/JKCA.2016.16.05.660

The Extraction of Metal Contaminants using Supercritical CO2  

Ju, Minsu (동남권원자력의학원 연구센터/부산가톨릭대학교 보건과학대학 방사선학과)
Kim, Jung-Hoon (부산가톨릭대학교 보건과학대학 방사선학과)
Kang, Se-Sik (부산가톨릭대학교 보건과학대학 방사선학과)
Publication Information
The Journal of the Korea Contents Association / v.16, no.5, 2016 , pp. 660-667 More about this Journal
Abstract
Conventional decontamination methods utilize water-based systems, which generate high amounts of secondary wastes. Herein, we describe an environmentally benign decontamination method using liquid and supercritical $CO_2$. The use of $CO_2$ as a solvent affords effective waste reduction by its ability to be recycled, thereby leaving be hind only the contaminants upon its evaporation. In this study, a $CO_2$ solution process was assessed using t-salen(t-butylsalen), DC18C6 (dicyclohexano-18Crown6), 8-HQN(8-hydroxyquinoline), NEt4PFOSA(perfluoro-1-octanesulfonic acid tetra-ethyl ammonium salt), and NEt4PFOA(pentadecafluorooctanoic acid ammonium salt) to extract spiked radioactive contaminants(Nb,Zr,Co,Sr) from an inert sample matrix, namely filter paper. With the static extraction method, Sr was extracted with a maximum extraction rate of 97%, and Nb was extracted with a maximum extraction rate of 75%. Additionally, we were also able to extract Co and Zr with maximum extract ion ratesof 73% and 64%, respectively.
Keywords
Decontamination; Nuclear; Extraction; Supercritical Fluid; Carbon Dioxide;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Martin, Angel, zmarta Fraile, Soraya Rodriguez-Rojo, and Maria Jose Cocerol, "Supercritical Fluid Technology," Handbook of Encapsulation and Controlled Release, p.447, 2015.
2 Andrea Dacal Pecanha do Nascimentoa, Luiz Alberto Lira Soaresb, Luiz Stragevitcha, and Leandro Danielskia, "Extraction of Acrocomia intumescens Drude oil with supercritical carbon dioxide: Process modeling and comparison with organic solvent extractions," The Journal of Supercritical Fluids, pp.1-7, 2016.
3 Jeremy J. Kroon and Douglas E. Raynie, "Supercritical fluid extraction," Handbook of Sample Preparation, pp.191-196, 2012.
4 M. McHugh and Val Krukonis, "Supercritical fluid extraction: principles and practice," Elsevier, 2013.
5 K. H. Park, J. K. Lee, and J. H. Sung, "Metal extraction from the artificially contaminated soil using supercritical CO2 with mixed ligands," Chemosphere, pp.615-622, 2013.
6 J. H. Sung, H. W. Kim, and H. D. Kim, Special Article-Technolgy of Nuclear, 2007.
7 J. F. Dozol, M. Dozol, and R. M. Macias, "Extraction of Strontium and Cesium by Dicarbollides, Crown Ethers and Functionalized Calixarenes," J. Inclusion Phenomena & Macrocyclic Chemistry, p.38, 2000.
8 A. S. Pente, V. Thorat, and N. Soudamini, "Extraction of strontium from acidic radioactive liquid waste by indigenously synthesized DCH18C6 extractant," Proceedings of DAEBRNS biennial symposium on emerging trends in separation science and technology, 2012.
9 Jiri Raisa, Shoichi Tachimori, E. J. Yoo, Jana Alexovaa, and Maria Bubenikovaa, "Extraction of Radioactive Cs and Sr from Nitric Acid Solutions with 25, 27-Bis (1-octyloxy) calix [4]-26, 28-Crown-6 and Dicyclohexyl-18- Crown-6: Effect of Nature of the Organic Solvent," Separation Science and Technology, pp.1202-1212, 2015.
10 Mario H. Rodriguez, Gustavo D. Rosales, Eliana G. Pinna, and Daniela S. Suarez, "Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching," Hydrometallurgy, pp.17-20, 2015.
11 Daniel A. Bertuol, Caroline M. Machado, Mariana L. Silva, Camila O. Calgaro, Guilherme L. Dotto, and Eduardo H. Tanabe, "Recovery of cobalt from spent lithium-ion batteries using supercritical carbon dioxide extraction," Waste Management, pp.245-251, 2016.
12 Xiao-Li Wu, Xue-Xuan Feng, Chu-Wen Li, Xiao-Jun Zhang, Zhi-Wei Chen, Jian-Nan Chen, Xiao-Ping Lai, Sai-Xia Zhang, Yu-Cui Li, and Zi-Ren Su, "The protective effects of the supercritical-carbon dioxide fluid extract of Chrysanthemum indicum against lipopolysaccharide-induced acute lung injury in mice via modulating Toll-like receptor 4 signaling pathway," Mediators of inflammation, 2014.
13 Ming-Tsai Liang, Ru-chien Liang, Chih-Hsiung Lin, Ping-Jui Hsu, Li-Yu Wu, Hong-Fa Chen, Yuh-Wern Wu, and Wen-Chen Lee, "Metal extraction of a spiked solid with supercritical carbon dioxide," The Journal of Supercritical Fluids, pp.324-329, 2013.
14 Ji-Yan Su, Li-Rong Tan, Ping Lai, Hai-Chun Liang, Zen Qin, Mu-Rong Ye, Xiao-Ping Lai, and Zi-Ren Su, "Experimental study on anti-inflammatory activity of a TCM recipe consisting of the supercritical fluid CO 2 extract of Chrysanthemum indicum, Patchouli Oil and Zedoary Turmeric Oil in vivo," Journal of Ethnopharmacology, pp.608-614, 2012.