Adsorption of Phosphate from Aqueous Solution Using an Iron-Zirconium Binary Oxide Sorbent
文献类型：期刊论文
| 作者 | Ren, Zongmin1; Shao, Lina1,2; Zhang, Gaosheng1
|
| 刊名 | WATER AIR AND SOIL POLLUTION
 |
| 出版日期 | 2012-09-01 |
| 卷号 | 223期号:7页码:4221-4231 |
| 关键词 | Fe-Zr binary oxide Phosphate removal Adsorption Mechanism |
| 英文摘要 | In this study, an iron-zirconium binary oxide with a molar ratio of 4:1 was synthesized by a simple coprecipitation process for removal of phosphate from water. The effects of contact time, initial concentration of phosphate solution, temperature, pH of solution, and ionic strength on the efficiency of phosphate removal were investigated. The adsorption data fitted well to the Langmuir model with the maximum P adsorption capacity estimated of 24.9 mg P/g at pH 8.5 and 33.4 mg P/g at pH 5.5. The phosphate adsorption was pH dependent, decreasing with an increase in pH value. The presence of Cl-, SO (4) (2-) , and CO (3) (2-) had little adverse effect on phosphate removal. A desorbability of approximately 53 % was observed with 0.5 M NaOH, indicating a relatively strong bonding between the adsorbed PO (4) (3-) and the sorptive sites on the surface of the adsorbent. The phosphate uptake was mainly achieved through the replacement of surface hydroxyl groups by the phosphate species and formation of inner-sphere surface complexes at the water/oxide interface. Due to its relatively high adsorption capacity, high selectivity and low cost, this Fe-Zr binary oxide is a very promising candidate for the removal of phosphate ions from wastewater. |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Water Resources |
| 关键词[WOS] | WASTE-WATER ; PHOSPHORUS REMOVAL ; FLY-ASH ; SORPTION ; SYSTEM ; PARTICLES ; HYDROXIDE ; KINETICS ; ARSENATE ; RECOVERY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000307276400052 |
| 公开日期 | 2012-10-17 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/5680]  |
| 专题 | 烟台海岸带研究所_近岸生态与环境实验室 |
| 作者单位 | 1.Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Zone Environm Proc,YICCAS, Yantai 264003, Shandong, Peoples R China 2.Lanzhou Jiaotong Univ, Sch Environm & Municipal Engn, Lanzhou 730070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Zongmin,Shao, Lina,Zhang, Gaosheng. Adsorption of Phosphate from Aqueous Solution Using an Iron-Zirconium Binary Oxide Sorbent[J]. WATER AIR AND SOIL POLLUTION,2012,223(7):4221-4231. |
| APA | Ren, Zongmin,Shao, Lina,&Zhang, Gaosheng.(2012).Adsorption of Phosphate from Aqueous Solution Using an Iron-Zirconium Binary Oxide Sorbent.WATER AIR AND SOIL POLLUTION,223(7),4221-4231. |
| MLA | Ren, Zongmin,et al."Adsorption of Phosphate from Aqueous Solution Using an Iron-Zirconium Binary Oxide Sorbent".WATER AIR AND SOIL POLLUTION 223.7(2012):4221-4231. |
入库方式： OAI收割
来源：烟台海岸带研究所
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