| 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
 |
| ISSN | 0273-1223 |
| 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 | |
| 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 |
| 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. |
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