Modified ferron assay for speciation characterization of hydrolyzed Al(III): a precise k value based judgment

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科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

	Modified ferron assay for speciation characterization of hydrolyzed Al(III): a precise k value based judgment
	Ye Changqing 1,2; Wang Dongsheng 2; Wu Xiaohong 2; Qu Jiuhui 2; Gregory, John 3
刊名	WATER SCIENCE AND TECHNOLOGY
	2009
卷号	59 期号:4 页码:823-832
关键词	Al(13) Coagulation Ferron Assay Hydrolyzed Al(Iii) Speciation Characterization
ISSN号	0273-1223
通讯作者	Ye, CQ, Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China
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
文献子类	Article
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
学科主题	Engineering, Environmental ; Environmental Sciences ; Water Resources
URL标识	查看原文
WOS关键词	HYDROXYALUMINUM SOLUTIONS ; POLYNUCLEAR ALUMINUM ; COAGULATION ; AL-13 ; PRECIPITATION ; MONONUCLEAR ; MECHANISM ; CHLORIDE ; SALTS ; WATER
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
语种	英语
WOS记录号	WOS:000263933200024
资助机构	NSF of China [50578155]; innovative research group fund [50621804]; China national 863 projects [2006AA06Z312]
公开日期	2011-07-05
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/3541]
专题	烟台海岸带研究所_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
推荐引用方式 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.