Removal of azo dye from water by magnetite adsorption-fenton oxidation
文献类型：期刊论文
| 作者 | Wu, RC; Qu, JH |
| 刊名 | WATER ENVIRONMENT RESEARCH
 |
| 出版日期 | 2004 |
| 卷号 | 76期号:7页码:2637-2642 |
| 关键词 | magnetite adsorption magnetic separation Fenton oxidation regeneration azo dyes acid red B |
| 英文摘要 | The aim of this study is to highlight the possibility of using powder magnetite adsorption-Fenton oxidation as a method for removal of azo dye acid red B (ARB) from water. The adsorption properties of magnetite powder towards ARB were studied. The oxidation of adsorbed ARB and regeneration of magnetite adsorbent at the same time by Fenton reagent (hydrogen peroxide [H2O2] + iron (II) [Fe2+]) in another treatment unit with a smaller volume was also investigated. The efficiency of Fenton oxidation of ARB was compared for the reaction carried Out in Solution and on magnetite. The magnetic separation method was used to recover magnetite after adsorption or regeneration. The results indicated that the adsorption rate was fast. The capacity was strongly dependent on pH and inorganic anions. and pH 3.8 was optimal for the adsorption of ARB. The adsorption can be described well using the Langmuir model. The oxidation was more efficient for ARB adsorbed on magnetite than in solution. The adsorption capacity of magnetite increased significantly after regeneration, which was the result of all increase in surface area of the adsorbent and change of elemental ratio (oxygen:iron [O:Fe]) on the surface. The maximum adsorption capacity for ARB was 32.4 mg/g adsorbent. |
| 研究领域[WOS] | Engineering ; Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| WOS记录号 | WOS:000226240600003 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23539]  |
| 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 | Wu, RC,Qu, JH. Removal of azo dye from water by magnetite adsorption-fenton oxidation[J]. WATER ENVIRONMENT RESEARCH,2004,76(7):2637-2642. |
| APA | Wu, RC,&Qu, JH.(2004).Removal of azo dye from water by magnetite adsorption-fenton oxidation.WATER ENVIRONMENT RESEARCH,76(7),2637-2642. |
| MLA | Wu, RC,et al."Removal of azo dye from water by magnetite adsorption-fenton oxidation".WATER ENVIRONMENT RESEARCH 76.7(2004):2637-2642. |
入库方式： OAI收割
来源：生态环境研究中心
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