Preparation and characterisation of polyaluminium silicate chloride coagulant
文献类型：期刊论文
| 作者 | Song, YH; Luan, ZK; Tang, HX |
| 刊名 | ENVIRONMENTAL TECHNOLOGY
 |
| 出版日期 | 2003 |
| 卷号 | 24期号:3页码:319-327 |
| 关键词 | coagulant polyaluminium silicate chloride aluminium speciation water treatment |
| 英文摘要 | To improve the coagulation efficiency for water treatment purposes, a composite aluminium-silicon coagulant, the polyaluminium silicate chloride was prepared and characterised. The preparation process included the preparation of polyaluminium chloride and polysilicic acid followed by the compounding of the two solutions. The prepared polyaluminium silicate chloride coagulant solution had an aluminium concentration of 0.10 mole per litre, hydroxyl to aluminium molar ratios between 0.5 and 2.0, and silicon to aluminium molar ratios between 0.025 and 0.075. Aluminium-27 nuclear magnetic resonance spectroscopy, photon correlation spectroscopy, streaming current measurement, jar tests and pilot-scale coagulation tests were employed to study the aluminium speciation, particle size distribution, electrokinetic and coagulation properties of this composite coagulant. In comparison with polyaluminium chloride, polyaluminium silicate chloride contains less polynuclear aluminium [AlO4Al12(OH)(24)(H2O)(12)](7+) and shows smaller charge neutralisation capacity. However, its particle size shows a significant increase, which enhances the coagulation efficiency. The results show that polyaluminium silicate chloride is an efficient composite coagulant for water treatment. |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| WOS记录号 | WOS:000182034100006 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23773]  |
| 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 | Song, YH,Luan, ZK,Tang, HX. Preparation and characterisation of polyaluminium silicate chloride coagulant[J]. ENVIRONMENTAL TECHNOLOGY,2003,24(3):319-327. |
| APA | Song, YH,Luan, ZK,&Tang, HX.(2003).Preparation and characterisation of polyaluminium silicate chloride coagulant.ENVIRONMENTAL TECHNOLOGY,24(3),319-327. |
| MLA | Song, YH,et al."Preparation and characterisation of polyaluminium silicate chloride coagulant".ENVIRONMENTAL TECHNOLOGY 24.3(2003):319-327. |
入库方式： OAI收割
来源：生态环境研究中心
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