The long-term transformation of Fe<SUP>III</SUP>-As<SUP>V </SUP>coprecipitates at room temperature under oxic conditions: New insights for the fate and the speciation of As

doi:10.1016/j.jhazmat.2024.135916

IMR OpenIR

	The long-term transformation of Fe^III-As^Vcoprecipitates at room temperature under oxic conditions: New insights for the fate and the speciation of As
	Zhang, Danni 1,2; Xia, Qiuli 1; Wang, Ying 2,3; Wang, Yumeng 2,4; Jin, Yuting 1,5; Wang, Duo 6; Guan, Xianjun 7; Xu, Dake 1; Wang, Fuhui 1; Jia, Yongfeng 2
通讯作者	Zhang, Danni(zhangdanni@mail.neu.edu.cn) ; Jia, Yongfeng(yongfeng.jia@iae.ac.cn)
	2024-12-05
发表期刊	JOURNAL OF HAZARDOUS MATERIALS
ISSN	0304-3894
卷号	480 页码:13
摘要	The long-term stability of Fe-III-As-V coprecipitates, a typically hydrometallurgical or naturally produced As-bearing wastes in tailings or in other environments, is critical to evaluating the As risk caused by them. A wide pH range, different Fe/As molar ratios, reaction media, and neutralization reagents were considered in order to find the mechanisms controlling the fate of As during the 1640 days of transformation at 25 degrees C. The results indicated that at pH 4 and 12, As continuously released from the solid phase. The components and their proportions determined the fate of As at pH 4. However, at pH 12, crystalline calcium carbonates (CCA) formed due to the CO2 in the air and this combined with the adsorption capacity of As on the 2-line ferrihydrite controlling the fate of As. If pH changed to 8 and 10, yukonite formed after the release of As. The CCA also appeared in the presence of Ca. Therefore, these two processes controlled the fate of As at this pH range. These findings are important for understanding and predicting the transport of As under various environmental conditions. The technology chosen for As remediation in soils and As removal from waste waters will also be benefit from these results.
关键词	Yukonite Arsenic speciation Long-term stability FeIII-AsV coprecipitate
资助者	National Key R&D & D Program of China ; National Natural Science Foundation of China ; Liaoning Revitalization Talents Program ; Doctoral Start-up Foundation of Liaoning Province ; Funda-mental Research Funds for the Central Universities ; Chinese Academy of Sciences
DOI	10.1016/j.jhazmat.2024.135916
收录类别	SCI
语种	英语
资助项目	National Key R&D & D Program of China[2020YFC1807800] ; National Natural Science Foundation of China[42377219] ; National Natural Science Foundation of China[42007300] ; National Natural Science Foundation of China[42173063] ; National Natural Science Foundation of China[41907284] ; Liaoning Revitalization Talents Program[XLYC2007192] ; Doctoral Start-up Foundation of Liaoning Province ; Funda-mental Research Funds for the Central Universities ; Chinese Academy of Sciences[QYZDJ-SSW-DQC038]
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:001321854100001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/190243
专题	中国科学院金属研究所
通讯作者	Zhang, Danni; Jia, Yongfeng
作者单位	1.Northeastern Univ, Corros & Protect Ctr, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Peoples R China 3.Ningxia Univ, Sch Ecol & Environm, Yinchuan 750021, Peoples R China 4.Shenyang Inst Engn, Coll Energy & Power, Shenyang 110136, Peoples R China 5.Liaoning Acad Mat, Inst Mat Intelligent Technol, Shenyang 110167, Peoples R China 6.Liaoning Prov Inst Metrol, Shenyang 110004, Peoples R China 7.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Danni,Xia, Qiuli,Wang, Ying,et al. The long-term transformation of Fe^III-As^Vcoprecipitates at room temperature under oxic conditions: New insights for the fate and the speciation of As[J]. JOURNAL OF HAZARDOUS MATERIALS,2024,480:13.
APA	Zhang, Danni.,Xia, Qiuli.,Wang, Ying.,Wang, Yumeng.,Jin, Yuting.,...&Jia, Yongfeng.(2024).The long-term transformation of Fe^III-As^Vcoprecipitates at room temperature under oxic conditions: New insights for the fate and the speciation of As.JOURNAL OF HAZARDOUS MATERIALS,480,13.
MLA	Zhang, Danni,et al."The long-term transformation of Fe^III-As^Vcoprecipitates at room temperature under oxic conditions: New insights for the fate and the speciation of As".JOURNAL OF HAZARDOUS MATERIALS 480(2024):13.