Study on the process and mechanism of chloride ion adsorption by ultra-high lime aluminum method

doi:10.5004/dwt.2023.29951

IMR OpenIR

	Study on the process and mechanism of chloride ion adsorption by ultra-high lime aluminum method
	Zhang, Pengyu 1; Sun, Limin 2; Li, Wenyang 1; Guo, Haomeng 1; Gao, Ruian 3; Guan, Yong 4; Feng, Liming 1
通讯作者	Guan, Yong(yguan@imr.ac.cn) ; Feng, Liming(flm@sdjzu.edu.cn)
	2023-11-01
发表期刊	DESALINATION AND WATER TREATMENT
ISSN	1944-3994
卷号	312 页码:177-186
摘要	The ultra-high lime aluminum method (UHLA) is a method that can effectively adsorb chloride ions in a solution. Calcium oxide (CaO) and sodium aluminate (NaAlO2) were mixed and added to the sodium chloride solution. After the reaction lasted for some time, the content of chloride ions in the solution was significantly reduced. Through the experiment of chloride ion adsorption, it was found that when the mass ratio of calcium oxide to sodium aluminate was m(NaAlO2):m(CaO) = 1:2.5, the reaction temperature was 25celcius, and the stirring time was 60 min, the adsorption effect on chloride ion was the best. The adsorption rate can reach 93.3% in a 100 mg/L sodium chloride solution. With the increased sodium chloride concentration, the time required to reach adsorption equilibrium becomes longer. In a 2,000 mg/L sodium chloride solution, this method's unit adsorption mass of chloride ion can reach 63.5 mg/g. Through SEM and XRD analysis, calcium oxide and sodium aluminate react in solution to form Ca4Al2(OH)14 with a layered structure. The OH- between the layers can exchange with external chloride ions. After Ca4Al2(OH)14 adsorbs chloride ions, the product is Friedel's salt (Ca4Al2Cl2(OH)12) with the same layered structure.
关键词	Chlorine Friedel's salt Alyered structure Ion exchange Aluminum
资助者	Central Government Guide Local Science and Technology Development Special Fund Project ; Shandong Province Science and Technology smes Innovation Ability Improvement Project
DOI	10.5004/dwt.2023.29951
收录类别	SCI
语种	英语
资助项目	Central Government Guide Local Science and Technology Development Special Fund Project[YDZX2022112] ; Shandong Province Science and Technology smes Innovation Ability Improvement Project[2022TSGC1295]
WOS研究方向	Engineering ; Water Resources
WOS类目	Engineering, Chemical ; Water Resources
WOS记录号	WOS:001117646800018
出版者	DESALINATION PUBL
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/183374
专题	中国科学院金属研究所
通讯作者	Guan, Yong; Feng, Liming
作者单位	1.Shandong Jianzhu Univ, 100 Feng Ming Rd, Jinan 250000, Peoples R China 2.Shanghai Inst Space Power Sources, Shanghai 200245, Peoples R China 3.Weifang Guoyi Aluminum Co Ltd, Weifang, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Pengyu,Sun, Limin,Li, Wenyang,et al. Study on the process and mechanism of chloride ion adsorption by ultra-high lime aluminum method[J]. DESALINATION AND WATER TREATMENT,2023,312:177-186.
APA	Zhang, Pengyu.,Sun, Limin.,Li, Wenyang.,Guo, Haomeng.,Gao, Ruian.,...&Feng, Liming.(2023).Study on the process and mechanism of chloride ion adsorption by ultra-high lime aluminum method.DESALINATION AND WATER TREATMENT,312,177-186.
MLA	Zhang, Pengyu,et al."Study on the process and mechanism of chloride ion adsorption by ultra-high lime aluminum method".DESALINATION AND WATER TREATMENT 312(2023):177-186.