Removal of arsenic from water by Friedel's salt (FS: 3CaO center dot Al2O3 center dot CaCl2 center dot 10H(2)O)
文献类型：期刊论文
| 作者 | Zhang, Danni1,3; Jia, Yongfeng1; Ma, Jiayu2,3; Li, Zhibao2 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2011-11-15 |
| 卷号 | 195页码:398-404 |
| 关键词 | Arsenic Removal Water Friedel's Salt |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2011.08.058 |
| 英文摘要 | Low levels of arsenic can be effectively removed from water by adsorption onto various materials and searching for low-cost, high-efficiency new adsorbents has been a hot topic in recent years. In the present study, the performance of Friedel's salt (FS: 3CaO center dot Al2O3 center dot CaCl2 center dot 10H(2)O), a layered double hydroxide (LDHs), as an adsorbent for arsenic removal from aqueous solution was investigated. Friedel's salt was synthesized at lower temperature (50 degrees C) compared to traditional autoclave methods by reaction of calcium chloride with sodium aluminate. Kinetic study revealed that adsorption of arsenate by Friedel's salt was fast in the first 12 h and equilibrium was achieved within 48 h. The adsorption kinetics are well described by second-order Lageren equation. The adsorption capacity of the synthesized sorbent for arsenate at pH 4 and 7 calculated from Langmuir adsorption isotherms was 11.85 and 7.80 mg/g, respectively. Phosphate and silicate markedly decreased the removal of arsenate, especially at higher pH, but sulfate was found to suppress arsenate adsorption at lower pH and the adverse effect was disappeared at pH >= 6. Common metal cations (Ca2+, Mg2+) enhanced arsenate adsorption. The results suggest that Friedel's salt is a potential cost-effective adsorbent for arsenate removal in water treatment. (C) 2011 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000300204500049 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://210.72.129.5/handle/321005/121995]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Jia, Yongfeng |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 110016, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Danni,Jia, Yongfeng,Ma, Jiayu,et al. Removal of arsenic from water by Friedel's salt (FS: 3CaO center dot Al2O3 center dot CaCl2 center dot 10H(2)O)[J]. JOURNAL OF HAZARDOUS MATERIALS,2011,195:398-404. |
| APA | Zhang, Danni,Jia, Yongfeng,Ma, Jiayu,&Li, Zhibao.(2011).Removal of arsenic from water by Friedel's salt (FS: 3CaO center dot Al2O3 center dot CaCl2 center dot 10H(2)O).JOURNAL OF HAZARDOUS MATERIALS,195,398-404. |
| MLA | Zhang, Danni,et al."Removal of arsenic from water by Friedel's salt (FS: 3CaO center dot Al2O3 center dot CaCl2 center dot 10H(2)O)".JOURNAL OF HAZARDOUS MATERIALS 195(2011):398-404. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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