Evaluation of metal oxides and activated carbon for lead removal: Kinetics, isotherms, column tests, and the role of co-existing ions
文献类型：期刊论文
| 作者 | Shi, Qiantao1; Terracciano, Amalia1; Zhao, Ying1,2; Wei, Chaoyang1,3 ; Christodoulatos, Christos1; Meng, Xiaoguang1
|
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2019-01-15 |
| 卷号 | 648页码:176-183 |
| 关键词 | Lead Adsorption Activated carbon Metal oxides Co-existing ions |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2018.08.013 |
| 通讯作者 | Meng, Xiaoguang(xmeng@stevens.edu) |
| 英文摘要 | Activated carbon (AC) is commonly used in faucet and pitcher filters for lead (Pb(II)) removal in homes. This study evaluated the Pb(II) removal performance of AC and metal oxides (e.g. Fe(OH)(3) and TiO2), as well as the co-existing ions' effect on Pb(II) removal. Results showed that metal oxides had higher adsorption capacity (28.9-51.5 mg/g) than AC (212 mg/g).Pb(II) was inner-spherically adsorbed onto both AC and metal oxides surfaces. Among various metal ions, calcium (Ca(II)) demonstrated dramatic effects on Pb(II) removal ability of AC, while it had no effect on Pb( II) adsorption by metal oxides. This difference resulted from the inner- and outer- sphere adsorption of Ca(II) on AC and metal oxides, respectively. The presence of orthophosphate (orth-P) and sulfate enhanced Pb(II) removal by those three adsorbents, whereas carbonate and silicate had negligible effect on Pb( II) adsorption. Interestingly. while the orth-P was usually used as corrosion inhibitor because of the formation of lead-phosphate coprecipitate, we found that the enhanced effect of orth-P on Pb(H) removal was mainly due to the synergistic adsorption. This study provides valuable information for the selection of effective adsorbents for Pb(II) removal and is helpful for understanding the roles of co-existing ions on it. (C) 2018 Elsevier B.V. All rights reserved. |
| WOS关键词 | AQUEOUS-SOLUTIONS ; WASTE-WATER ; DRINKING-WATER ; ADSORPTION ; PB(II) ; GOETHITE ; SORPTION ; PHOSPHATE ; COPPER(II) ; SOLUBILITY |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000447805500018 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/52685]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Meng, Xiaoguang |
| 作者单位 | 1.Stevens Inst Technol, Ctr Environm Syst, Hoboken, NJ 07030 USA 2.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Qiantao,Terracciano, Amalia,Zhao, Ying,et al. Evaluation of metal oxides and activated carbon for lead removal: Kinetics, isotherms, column tests, and the role of co-existing ions[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,648:176-183. |
| APA | Shi, Qiantao,Terracciano, Amalia,Zhao, Ying,Wei, Chaoyang,Christodoulatos, Christos,&Meng, Xiaoguang.(2019).Evaluation of metal oxides and activated carbon for lead removal: Kinetics, isotherms, column tests, and the role of co-existing ions.SCIENCE OF THE TOTAL ENVIRONMENT,648,176-183. |
| MLA | Shi, Qiantao,et al."Evaluation of metal oxides and activated carbon for lead removal: Kinetics, isotherms, column tests, and the role of co-existing ions".SCIENCE OF THE TOTAL ENVIRONMENT 648(2019):176-183. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。