Effect of aging condition on species transformation in polymeric Al salt coagulants
文献类型：会议论文
| 作者 | Feng, Chenghong; Ge, Xiaopeng; Wang, Dongsheng; Tang, Hongxiao |
| 出版日期 | 2011 |
| 会议名称 | 6th International Conference on Interfaces Against Pollution (IAP 2010) |
| 会议日期 | MAY 16-19, 2010 |
| 会议地点 | Beijing, PEOPLES R CHINA |
| 关键词 | Aging condition Species transformation Hexameric ring structure Morphology |
| 英文摘要 | Effect of aging time and aging temperature on the transformation process of Al species in hydroxyl Al solutions were analyzed by Ferron assay and Al-27 NMR spectroscopy with the help of analysis results of pH, turbidity and morphology of samples. Owing to the high chemical energy provided by elevated temperature, aging temperature exerted greater effect on the transformation of polymers than aging time. Elevation of aging temperature enhanced the transformation rate of various Al species in solution. Polymerization or hydrolysis of monomers in solution was not detected under various aging conditions. Polymeric Al species with non-Keggin structure (e.g., hexameric ring structure) were less stable than Keggin-Al-13. The decomposition of Al-13 only occurred at higher aging temperature. The coexistence of oligomers affected the transformation of Al-13. Morphology and species composition of colloidal Al species transformed from Al-13 were different from those from polymeric Al species with non-Keggin structure. Changes in pH, turbidity and morphology of samples agreed well with the distribution of Al species obtained by Ferron assay and Al-27 NMR spectroscopy. (C) 2010 Elsevier B.V. All rights reserved. |
| ISBN号 | 0927-7757 |
| WOS记录号 | WOS:000289920200011 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/24627]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Feng, Chenghong,Ge, Xiaopeng,Wang, Dongsheng,et al. Effect of aging condition on species transformation in polymeric Al salt coagulants[C]. 见:6th International Conference on Interfaces Against Pollution (IAP 2010). Beijing, PEOPLES R CHINA. MAY 16-19, 2010. |
入库方式： OAI收割
来源：生态环境研究中心
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