Experimental study on anti-seepage grout made of leachate contaminated clay in landfill
文献类型：期刊论文
| 作者 | Xue, Qiang ; Li, Jiang-shan; Liu, Lei
|
| 刊名 | APPLIED CLAY SCIENCE
 |
| 出版日期 | 2013 |
| 卷号 | 80-81页码:438-442 |
| 关键词 | Landfill Anti-seepage grout Leachate Clay Heavy metals |
| ISSN号 | 0169-1317 |
| DOI | 10.1016/j.clay.2013.06.026 |
| 英文摘要 | Leachate-contaminated clay was used as the base material, where cement and the self-developed clay curing agent were added to form an anti-seepage grout that can repair the leachate-contaminated clay in landfills, exhibit low permeability, and retard pollutants in the leachate. The effect of grout formula on the concentration of leaching pollutants, concretion rate, compressive strength, and permeability coefficient of concretion bodies was studied through a series of laboratory experiments. The efficiency of concretion bodies in retarding the leachate pollutants was investigated through a permeability test. The results indicated that the pollutants in the leachate-contaminated clay were controlled effectively. At 20% cement, 2% clay curing agent, and 1:1 watersoil ratio, the permeability coefficient of the concretion bodies after 7 days is similar to 10(-7) cm/s, with >1 concretion rate and >12 MPa unconfined compressive strength. In addition, the concretion bodies reached >85% retardation rate for COD in the leachate and >99.8% for NH3-N (including heavy metals such as Pb and Cd, among others). The retardation rate of the concretion bodies for the heavy metals is proportional to the ionic radius. As the cement content increased (clay curing agent = 10% cement), the concretion rate and permeability of the concretion bodies decreased, whereas its compressive strength increased. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved. |
| WOS研究方向 | Chemistry ; Materials Science ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:000325039100059 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3485]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Xue, Qiang,Li, Jiang-shan,Liu, Lei. Experimental study on anti-seepage grout made of leachate contaminated clay in landfill[J]. APPLIED CLAY SCIENCE,2013,80-81:438-442. |
| APA | Xue, Qiang,Li, Jiang-shan,&Liu, Lei.(2013).Experimental study on anti-seepage grout made of leachate contaminated clay in landfill.APPLIED CLAY SCIENCE,80-81,438-442. |
| MLA | Xue, Qiang,et al."Experimental study on anti-seepage grout made of leachate contaminated clay in landfill".APPLIED CLAY SCIENCE 80-81(2013):438-442. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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