Preparation and characterization of polyaluminum chloride containing high content of al-13 and active chlorine
文献类型：期刊论文
| 作者 | Hu, CZ; Liu, HJ; Qu, JH |
| 刊名 | Colloids and surfaces a-physicochemical and engineering aspects
 |
| 出版日期 | 2005-06-15 |
| 卷号 | 260期号:1-3页码:109-117 |
| 关键词 | Coagulation Disinfection Al species Dsa electrodes Electrolysis process |
| ISSN号 | 0927-7757 |
| DOI | 10.1016/j.colsurfa.2005.03.025 |
| 通讯作者 | Qu, jh() |
| 英文摘要 | This paper introduces a new electrochemical method for preparation of polyaluminum chloride (pacl) which contains high content of al-13 and active chlorine and presents integrated properties of flocculation with oxidation. e-pacl (pacl prepared by electrolysis process) samples were successfully prepared in an electrochemical reactor, which used ti/ruo2-tio2 anodes and ti cathodes. anode potential was the key electrochemical parameter that needed to be controlled at 1.5 v to ensure the maximal current efficiency of main reactions in electrolysis process. analyses by ferron colorimetric method and al-27 nmr spectroscopy indicated that al-13 was the predominant species in the final product when total al concentration (al-t) was in the range of 0.1-1.5 mol/l. the amount of active chlorine was in inverse proportion to al-t. contents of the most active component, al-13 and active chlorine could respectively reach 90.9% and 5650 mg/l with al-t = 0.51 mol/l and basicity (b, oh/al molar ratios)= 2.23 in the liquid product of pacl (e-pacl(2)). in e-pacl2, the sulfate precipitate of al-13 was the unique material detected by x-ray diffraction patterns and clusters of small spheres that might be the aggregates of al-13 were observed on the surface of its air-dried sample by atomic force microscopy. results of dynamic light scattering showed that the particle size distributions of e-pact were related with the al species distributions and ageing time. the active chlorine in e-pacl(2) performed well on disinfection of raw water. (c) 2005 elsevier b.v. all rights reserved. |
| WOS关键词 | NEUTRALIZED ALUMINUM SOLUTIONS ; HYDROXYALUMINUM SOLUTIONS ; ELECTROLYSIS PROCESS ; POLYMER FORMATION ; WATER-TREATMENT ; SPECIATION ; SPECTROSCOPY |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000230714500014 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378127 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Qu, JH |
| 作者单位 | 1.Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Environm Aquat Chem, Beijing, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, CZ,Liu, HJ,Qu, JH. Preparation and characterization of polyaluminum chloride containing high content of al-13 and active chlorine[J]. Colloids and surfaces a-physicochemical and engineering aspects,2005,260(1-3):109-117. |
| APA | Hu, CZ,Liu, HJ,&Qu, JH.(2005).Preparation and characterization of polyaluminum chloride containing high content of al-13 and active chlorine.Colloids and surfaces a-physicochemical and engineering aspects,260(1-3),109-117. |
| MLA | Hu, CZ,et al."Preparation and characterization of polyaluminum chloride containing high content of al-13 and active chlorine".Colloids and surfaces a-physicochemical and engineering aspects 260.1-3(2005):109-117. |
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来源：中国科学院大学
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