| Immobilization of lead by application of zeolite: Leaching column and rhizobox incubation studies | |
| Shi, Wei-yu1; Li, Hua2; Du, Sheng3; Wang, Kai-bo1; Shao, Hong-bo4; Shi, WY (reprint author), Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China. shiwy@ieecas.cn | |
| 发表期刊 | APPLIED CLAY SCIENCE
 |
| ISSN | 0169-1317 |
| 2013-11-01 | |
| 卷号 | 85页码:103-108 |
| 关键词 | Zeolite Lead (Pb) Leaching Processes Rhizospheric Behavior Polluted-soil Remediation |
| 产权排序 | [Shi, Wei-yu; Wang, Kai-bo] Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China; [Li, Hua] Shanxi Univ, Sch Environm Sci & Resources, Taiyuan 030006, Shanxi, Peoples R China; [Du, Sheng] Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China; [Shao, Hong-bo] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China |
| 英文摘要 | Application of zeolite can reduce lead (Pb) mobility in soil. Leaching columns and rhizobox incubation experiments were carried out to investigate the leaching processes and rhizosphere behavior of Pb in a Pb-contaminated soil amended with zeolite. Zeolite addition reduced Pb release from the contaminated soil as well as increasing leachate pH and decreasing the bioavailable Pb concentration. Leachate pH was not significantly different among different zeolite dose treatments at the same measurement time. Leaching of Pb from the treated soil was lower than that from the untreated soil for the first nine weeks but the trend was reversed for the final weeks of the study. The Pb concentration in the leachate did not appear to be sensitive to changes in pH. It was concluded that when a relatively low amount of zeolite was added (<20 mg kg(-1)), the cation exchange capacity was the dominant factor for regulating Pb leaching behavior. The DTPA extractable Pb in the rhizosphere was similar to 15% higher than that in the close-root and bulk soil. In addition, the amounts of DTPA extractable Pb in the rhizosphere soil not treated with zeolite were 10% and 16% higher than in the rhizosphere soil with 10 and 20 g kg-1 zeolite addition, respectively. It could be concluded that zeolite addition inhibits uptake of Pb by affecting rhizospheric behavior. (C) 2013 Elsevier B.V. All rights reserved.; Application of zeolite can reduce lead (Pb) mobility in soil. Leaching columns and rhizobox incubation experiments were carried out to investigate the leaching processes and rhizosphere behavior of Pb in a Pb-contaminated soil amended with zeolite. Zeolite addition reduced Pb release from the contaminated soil as well as increasing leachate pH and decreasing the bioavailable Pb concentration. Leachate pH was not significantly different among different zeolite dose treatments at the same measurement time. Leaching of Pb from the treated soil was lower than that from the untreated soil for the first nine weeks but the trend was reversed for the final weeks of the study. The Pb concentration in the leachate did not appear to be sensitive to changes in pH. It was concluded that when a relatively low amount of zeolite was added (<20 mg kg(-1)), the cation exchange capacity was the dominant factor for regulating Pb leaching behavior. The DTPA extractable Pb in the rhizosphere was similar to 15% higher than that in the close-root and bulk soil. In addition, the amounts of DTPA extractable Pb in the rhizosphere soil not treated with zeolite were 10% and 16% higher than in the rhizosphere soil with 10 and 20 g kg-1 zeolite addition, respectively. It could be concluded that zeolite addition inhibits uptake of Pb by affecting rhizospheric behavior. (C) 2013 Elsevier B.V. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of China [41201258]; West Light Foundation of The Chinese Academy of Sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | HEAVY-METAL IMMOBILIZATION ; COAL FLY-ASH ; NATURAL ZEOLITE ; POLLUTED SOILS ; CONTAMINATED SOIL ; ION-EXCHANGE ; STABILIZATION ; PB ; ZINC ; RHIZOSPHERE |
| 研究领域[WOS] | Chemistry ; Materials Science ; Mineralogy |
| WOS记录号 | WOS:000327169800014 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/7044 |
| 专题 | 海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室 |
| 通讯作者 | Shi, WY (reprint author), Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China. shiwy@ieecas.cn |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China 2.Shanxi Univ, Sch Environm Sci & Resources, Taiyuan 030006, Shanxi, Peoples R China 3.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Wei-yu,Li, Hua,Du, Sheng,et al. Immobilization of lead by application of zeolite: Leaching column and rhizobox incubation studies[J]. APPLIED CLAY SCIENCE,2013,85:103-108. |
| APA | Shi, Wei-yu,Li, Hua,Du, Sheng,Wang, Kai-bo,Shao, Hong-bo,&Shi, WY .(2013).Immobilization of lead by application of zeolite: Leaching column and rhizobox incubation studies.APPLIED CLAY SCIENCE,85,103-108. |
| MLA | Shi, Wei-yu,et al."Immobilization of lead by application of zeolite: Leaching column and rhizobox incubation studies".APPLIED CLAY SCIENCE 85(2013):103-108. |
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