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Exploring ions selectivity of nanofiltration membranes for rare earth wastewater treatment
Zhao, Zhenzhen1,2; Feng, Shichao1,3,4; Xiao, Chunyan2; Luo, Jianquan1,3; Song, Weijie1,3,4; Wan, Yinhua1,3,4; Li, Shaohua2
2022-05-15
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
Volume289Pages:11
AbstractThe separation of metal ions with different valences is an intractable challenge in the treatment of rare earth (RE) ore leaching solutions, and nanofiltration (NF) is one of the most promising approaches to separate ions with different valences. Therefore, the separation behaviors of three commercial NF membranes (NF5, NF270 and NF90) were investigated in this study. The results showed that NF technology could be used for the separation of cations with different valences from nitrate and chloride; the NF270 membrane could be used for the separation of Na+/Ca2+ due to its appropriate pore size and negative charge. The NF5 membrane could be used for Ca2+/Nd3+ separation due to its large pore size and suitable zeta potential. Increasing the operating pressure and cross-flow velocity was beneficial to increase the separation factor of Ca2+/Nd3+. Increasing the solution pH and salt concentration facilitated the adsorption of metal cations on the membrane surface, resulting in the separation factor of Ca2+/Nd3+ increasing first and then decreasing. This work may provide new strategies to recycle valuable metals from RE wastewater or other complex mediums.
KeywordNanofiltration Cations with different valences Rare earth ions Ionic separation Donnan effect
DOI10.1016/j.seppur.2022.120748
Language英语
WOS KeywordSOLVENT-EXTRACTION ; SEPARATION ; RECOVERY ; CHARGE ; PERFORMANCE ; ADSORPTION ; REJECTION ; REMOVAL ; ACID ; PH
Funding ProjectIAGM[2020DA02] ; National Key Research and Development Program of China[2021YFC3201402] ; National Key Research and Development Program of China[2020YFC1909001]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationIAGM ; National Key Research and Development Program of China
WOS IDWOS:000829344100007
PublisherELSEVIER
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/54214
Collection中国科学院过程工程研究所
Corresponding AuthorFeng, Shichao
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Henan Polytech Univ, Inst Resources & Environm, Jiaozuo 454000, Henan, Peoples R China
3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Ganjiang Innovat Acad, Jiangxi Prov Key Lab Cleaner Prod Rare Earths, Ganzhou 341119, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Zhenzhen,Feng, Shichao,Xiao, Chunyan,et al. Exploring ions selectivity of nanofiltration membranes for rare earth wastewater treatment[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2022,289:11.
APA Zhao, Zhenzhen.,Feng, Shichao.,Xiao, Chunyan.,Luo, Jianquan.,Song, Weijie.,...&Li, Shaohua.(2022).Exploring ions selectivity of nanofiltration membranes for rare earth wastewater treatment.SEPARATION AND PURIFICATION TECHNOLOGY,289,11.
MLA Zhao, Zhenzhen,et al."Exploring ions selectivity of nanofiltration membranes for rare earth wastewater treatment".SEPARATION AND PURIFICATION TECHNOLOGY 289(2022):11.
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