Sorption behaviour of 137Cs and 152+154Eu onto bentonite phosphate modified with nickel: kinetics, isotherms, and chromatographic column application

IF 1.4 3区 化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR
Mohamed R. Abass, Sara S. Mahrous, Muhammad S. Mansy
{"title":"Sorption behaviour of <sup>137</sup>Cs and <sup>152+154</sup>Eu onto bentonite phosphate modified with nickel: kinetics, isotherms, and chromatographic column application","authors":"Mohamed R. Abass, Sara S. Mahrous, Muhammad S. Mansy","doi":"10.1515/ract-2023-0168","DOIUrl":null,"url":null,"abstract":"Abstract Using batch and column procedures, the present work investigated the sorption behaviour of 137 Cs and 152+154 Eu by bentonite phosphate modified with nickel (BPN) sorbent. The kinetic data obey pseudo-1 st -order for 137 Cs and follow pseudo-2 nd -order for 152+154 Eu. Various sorption isotherm models were used to analyze equilibrium data. The thermodynamic functions reflect an endothermic and spontaneous sorption process. HCl (about 95.35 %) and CaCl 2 (about 98.13 %) showed the optimum eluents for the complete recovery of both 137 Cs and 152+154 Eu, respectively. Finally, column data show that 137 Cs and 152+154 Eu may be loaded on BNP sorbent and separated from an aqueous solution using a variety of HCl concentrations as eluent. The obtianed results revealed that BNP sorbent is suitable for recovering 137 Cs and 152+154 Eu from low-level radioactive waste effluents (LLW).","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiochimica Acta","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/ract-2023-0168","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0

Abstract

Abstract Using batch and column procedures, the present work investigated the sorption behaviour of 137 Cs and 152+154 Eu by bentonite phosphate modified with nickel (BPN) sorbent. The kinetic data obey pseudo-1 st -order for 137 Cs and follow pseudo-2 nd -order for 152+154 Eu. Various sorption isotherm models were used to analyze equilibrium data. The thermodynamic functions reflect an endothermic and spontaneous sorption process. HCl (about 95.35 %) and CaCl 2 (about 98.13 %) showed the optimum eluents for the complete recovery of both 137 Cs and 152+154 Eu, respectively. Finally, column data show that 137 Cs and 152+154 Eu may be loaded on BNP sorbent and separated from an aqueous solution using a variety of HCl concentrations as eluent. The obtianed results revealed that BNP sorbent is suitable for recovering 137 Cs and 152+154 Eu from low-level radioactive waste effluents (LLW).
镍改性膨润土对137Cs和152+154Eu的吸附行为:动力学、等温线和色谱柱应用
摘要采用间歇和柱相结合的方法,研究了镍改性磷酸盐膨润土(BPN)对137 Cs和152+154 Eu的吸附行为。137cs的动力学数据服从伪-1阶,152eu的动力学数据服从伪-2阶。采用不同的吸附等温线模型对平衡数据进行分析。热力学函数反映了吸热自发吸附过程。HCl(95.35%)和cacl2(98.13%)分别是完全回收137 Cs和152+154 Eu的最佳洗脱剂。最后,柱数据表明,137cs和152+154 Eu可以负载在BNP吸附剂上,并使用不同浓度的HCl作为洗脱剂从水溶液中分离出来。结果表明,BNP吸附剂适用于低放射性废水中的137cs和152+154 Eu的回收。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Radiochimica Acta
Radiochimica Acta 化学-核科学技术
CiteScore
2.90
自引率
16.70%
发文量
78
审稿时长
6 months
期刊介绍: Radiochimica Acta publishes manuscripts encompassing chemical aspects of nuclear science and technology.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信