Modified ferron assay for speciation characterization of hydrolyzed Al(III): a precise k value based judgment
Ye Changqing1,2; Wang Dongsheng2; Wu Xiaohong2; Qu Jiuhui2; Gregory, John3
发表期刊WATER SCIENCE AND TECHNOLOGY
ISSN0273-1223
2009
卷号59期号:4页码:823-832
关键词Al(13) Coagulation Ferron Assay Hydrolyzed Al(Iii) Speciation Characterization
产权排序Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev; Chinese Acad Sci, RCEES, State Key Lab Environm Aquat Chem;UCL, Dept Civil & Environm Engn
通讯作者Ye, CQ, Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China
作者部门污染过程与控制实验室
英文摘要The speciation of Al-OH complexes in terms of Al(a), Al(b) and Al(c) could be achieved by traditional ferron assay and Al(b) is generally considered as Al(13), however, the inherent correlation between them remains an enigma. This paper presents a modified ferron assay to get precise determination of Al(13) using nonlinear least squares analysis, and to clarify the correlation between Alb and Al(13). Two parallel reactions conforming to pseudo-first-order kinetics can simulate the complicate reactions between polynuclear complexes and ferron successfully. Four types of experimental kinetic constant (k value) of Al-OH complexes can be observed by this method when investigating three typical aluminium solutions. Comparing with the results of (27)Al NMR, the species with moderate kinetics around 0.001 s(-1) can be confirmed to resemble to Al(13) polycation. The other types of kinetics are also well-regulated in partially neutralized aluminium solutions with various OH/Al ratios (b values) in the range 0 similar to 2.5. It would provide potential means to trace the in-situ formation of Al(13) in dilute solutions such as coagulation with Al-based coagulants
文章类型Article
资助机构NSF of China [50578155]; innovative research group fund [50621804]; China national 863 projects [2006AA06Z312]
收录类别SCI
语种英语
关键词[WOS]HYDROXYALUMINUM SOLUTIONS ; POLYNUCLEAR ALUMINUM ; COAGULATION ; AL-13 ; PRECIPITATION ; MONONUCLEAR ; MECHANISM ; CHLORIDE ; SALTS ; WATER
研究领域[WOS]Engineering ; Environmental Sciences & Ecology ; Water Resources
WOS记录号WOS:000263933200024
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/3540
专题中国科学院海岸带环境过程与生态修复重点实验室_污染过程与控制实验室
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China
2.Chinese Acad Sci, RCEES, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China
3.UCL, Dept Civil & Environm Engn, London WC1E 6BT, England
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GB/T 7714
Ye Changqing,Wang Dongsheng,Wu Xiaohong,et al. Modified ferron assay for speciation characterization of hydrolyzed Al(III): a precise k value based judgment[J]. WATER SCIENCE AND TECHNOLOGY,2009,59(4):823-832.
APA Ye Changqing,Wang Dongsheng,Wu Xiaohong,Qu Jiuhui,&Gregory, John.(2009).Modified ferron assay for speciation characterization of hydrolyzed Al(III): a precise k value based judgment.WATER SCIENCE AND TECHNOLOGY,59(4),823-832.
MLA Ye Changqing,et al."Modified ferron assay for speciation characterization of hydrolyzed Al(III): a precise k value based judgment".WATER SCIENCE AND TECHNOLOGY 59.4(2009):823-832.
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