On-Site Solidification/Stabilization of Cd, Zn, and Pb Co-Contaminated Soil Using Cement: Field Trial at Dongdagou Ditch, Northwest China
文献类型：期刊论文
| 作者 | Fei, Yang6,7; Yan, Xiulan7; Zhong, Lirong5; Li, Fasheng4; Du, Yanjun3; Li, Chunping1,2; Lv, Haoyang7; Li, Yonghua7 |
| 刊名 | ENVIRONMENTAL ENGINEERING SCIENCE
 |
| 出版日期 | 2018-12-01 |
| 卷号 | 35期号:12页码:1329-1339 |
| 关键词 | bearing capacity cement field trial heavy metals leaching toxicity solidification/stabilization |
| ISSN号 | 1092-8758 |
| DOI | 10.1089/ees.2017.0355 |
| 英文摘要 | Dongdagou Ditch in Baiyin City was one of the key demonstration areas for remediation of heavy metal contamination in China. Solidification/stabilization (S/S) is an appropriate technology that has positive impact on both leaching and strength performance of the riverbed site. This field trial was designed to investigate the long-term S/S effects and mechanism of ordinary Portland cement (OPC) on Cd, Zn, and Pb co-contaminated soil in Dongdagou Ditch, and to evaluate the influence of groundwater and low temperature. Leaching tests showed that 8 wt.%-OPC could effectively stabilize Cd, Zn, and Pb by 99.9%, 99.4%, and 67.9%, respectively, higher compared with 5 wt.%-OPC treatment, and had long-term stability. The bearing capacities of the OPC-treated soil reached 0.75-0.92 Mpa and met the USEPA (United States Environmental Protection Agency) standard for landfill disposal. Cd, Zn, and Pb were chemically stabilized and physically encapsulated by OPC simultaneously, the unstable acid-extractable Cd and Zn in soil were transformed into residual fraction after OPC treatment, and insoluble sulfides such as PbS and ZnS were specially formed due to high groundwater table of the site. In this field trial, groundwater showed negative effects on both leaching and strength properties of the OPC-treated soil due to anaerobic conditions and structural damage of S/S products. The 5 wt.%-OPC S/S effects on Cd and Zn decreased to 72.3% and 63.4%, respectively, and the soil strength reduced by 0.08-0.11 MPa below groundwater table. On-site S/S remediation with OPC was insensitive to low temperature, so that it was suitable for application in the cold Northwest China. |
| WOS关键词 | CHARACTERISTIC LEACHING PROCEDURE ; PORTLAND-CEMENT ; HEAVY-METALS ; IMMOBILIZATION ; STABILIZATION ; LEAD ; STABILIZATION/SOLIDIFICATION ; PERFORMANCE ; BEHAVIOR ; ASH |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000451977900007 |
| 出版者 | MARY ANN LIEBERT, INC |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/51566]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 作者单位 | 1.State Key Lab Solid Waste Resources Utilizat & En, Beijing, Peoples R China 2.Beijing Res Acad Bldg Mat Sci, Beijing, Peoples R China 3.Southeast Univ, Inst Geotech Engn, Nanjing, Jiangsu, Peoples R China 4.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing, Peoples R China 5.Pacific Northwest Natl Lab, Energy & Environm Directorate, Richland, WA USA 6.Univ Chinese Acad Sci, Beijing, Peoples R China 7.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fei, Yang,Yan, Xiulan,Zhong, Lirong,et al. On-Site Solidification/Stabilization of Cd, Zn, and Pb Co-Contaminated Soil Using Cement: Field Trial at Dongdagou Ditch, Northwest China[J]. ENVIRONMENTAL ENGINEERING SCIENCE,2018,35(12):1329-1339. |
| APA | Fei, Yang.,Yan, Xiulan.,Zhong, Lirong.,Li, Fasheng.,Du, Yanjun.,...&Li, Yonghua.(2018).On-Site Solidification/Stabilization of Cd, Zn, and Pb Co-Contaminated Soil Using Cement: Field Trial at Dongdagou Ditch, Northwest China.ENVIRONMENTAL ENGINEERING SCIENCE,35(12),1329-1339. |
| MLA | Fei, Yang,et al."On-Site Solidification/Stabilization of Cd, Zn, and Pb Co-Contaminated Soil Using Cement: Field Trial at Dongdagou Ditch, Northwest China".ENVIRONMENTAL ENGINEERING SCIENCE 35.12(2018):1329-1339. |
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。