Effective inspissation of uranium(VI) from radioactive wastewater using flow electrode capacitive deionization

doi:10.1016/j.seppur.2021.120172

HFCAS OpenIR

	Effective inspissation of uranium(VI) from radioactive wastewater using flow electrode capacitive deionization
	Zhou, Jian 1,2; Zhang, Xinyuan 2,3; Zhang, Yingzi 1,2; Wang, De 1,2; Zhou, Hongjian 2,3; Li, Jiaxing1,2
	2022-01-15
发表期刊	SEPARATION AND PURIFICATION TECHNOLOGY
ISSN	1383-5866
通讯作者	Zhou, Hongjian(hjzhou@issp.ac.cn) ; Li, Jiaxing(lijx@ipp.ac.cn)
摘要	The treatment for large amounts of low concentration radioactive wastewater has always been a worldwide problem, just like the Fukushima nuclear power plant is facing the problem of insufficient storage space. In this work, we have assessed the effectiveness of flow electrode capacitive deionization (FCDI) as a recently developed electrochemical technology to concentrate the radioactive wastewater for the first time. Continuous batch experiments demonstrated that uranium (U) can accumulate into the electrolyte and on activated carbon at the same time in the flow electrode, and the removal efficiency of U remained over 99% during each cycle. Combined with XPS analysis, the migration route and valence change of U in the flow electrode were revealed, which helped to understand the high adsorption capacity of U in FCDI. Long-term batch experiments exhibited that the low concentration of feed water (60 mg L-1 U) could be concentrated by 47 times after 48th continuous cycles, achieving a final concentration of 2843 mg L-1 U in the electrolyte, and 40 mL reduced volume of uranium containing water from 2,400 mL. Under optimized conditions, a charge efficiency of 86% and a low energy consumption of 2.03 mg J(-1) were achieved in 360 mg L-1 initial concentration of UO22+. Overall, high removal rate, excellent concentration effect and low energy consumption make FCDI to be a promising way for radioactive wastewater treatment.
关键词	Flow electrode Inspissation Radioactive waste Electrosorption Uranium (VI)
DOI	10.1016/j.seppur.2021.120172
关键词[WOS]	CARBON ; DESALINATION ; PERFORMANCE ; RECOVERY ; ADSORPTION ; EXTRACTION ; MECHANISM ; SEAWATER ; U(VI) ; UO22+
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Project[2020YFC1806602] ; National Natural Science Foundation of China[21876178] ; National Natural Science Foundation of China[51872291] ; Key research and development projects of Anhui Prov-ince[202104a06020028] ; Priority Academic Program Development of Jiangsu Higher Education Institutions
项目资助者	National Key Research and Development Project ; National Natural Science Foundation of China ; Key research and development projects of Anhui Prov-ince ; Priority Academic Program Development of Jiangsu Higher Education Institutions
WOS研究方向	Engineering
WOS类目	Engineering, Chemical
WOS记录号	WOS:000780913200005
出版者	ELSEVIER
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/130752
专题	中国科学院合肥物质科学研究院
通讯作者	Zhou, Hongjian; Li, Jiaxing
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, CAS Key Lab Photovolta & Energy Conservat Mat, HFIPS, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Ctr Environm & Energy Nanomat, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys,Inst Solid State Phys,HFIPS, Hefei 230031, Peoples R China
第一作者单位	中科院等离子体物理研究所
通讯作者单位	中科院等离子体物理研究所
推荐引用方式 GB/T 7714	Zhou, Jian,Zhang, Xinyuan,Zhang, Yingzi,et al. Effective inspissation of uranium(VI) from radioactive wastewater using flow electrode capacitive deionization[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2022,283.
APA	Zhou, Jian,Zhang, Xinyuan,Zhang, Yingzi,Wang, De,Zhou, Hongjian,&Li, Jiaxing.(2022).Effective inspissation of uranium(VI) from radioactive wastewater using flow electrode capacitive deionization.SEPARATION AND PURIFICATION TECHNOLOGY,283.
MLA	Zhou, Jian,et al."Effective inspissation of uranium(VI) from radioactive wastewater using flow electrode capacitive deionization".SEPARATION AND PURIFICATION TECHNOLOGY 283(2022).