Combined sieving and washing of multi-metal-contaminated soils using remediation equipment: A pilot-scale demonstration
文献类型：期刊论文
| 作者 | Li, You1,2; Liao, Xiaoyong2 ; Li, Wunan2
|
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 212页码:81-89 |
| 关键词 | Soil washing Physical separation Multi-metal contamination Optimization Remediation equipment |
| ISSN号 | 0959-6526 |
| DOI | 10.1016/j.jclepro.2018.11.294 |
| 通讯作者 | Liao, Xiaoyong(Liaoxy@igsnrr.ac.cn) |
| 英文摘要 | This study mainly examines the effects of combined sieving and washing process by remediation equipment for heavy metal decontamination at a historically contaminated site. The laboratory results showed that the optimum parameters for the washing process were pH 2, 30 degrees C, and 10:1 liquid/soil ratio. The results from field remediation proved that the overall removal of arsenic (As), cadmium (Cd), lead (Pb), and zinc (Zn) could reach 37.1-51.1%, 44.3-78.1%, 21.2-64.3% and 29.2-59.4%, respectively, in various particle fractions. To prevent secondary pollution, coagulating sedimentation and adsorption processes were used to treat the wastewater, with removal rates of 99.4% As, 99.9% Cd, 93.5% Pb and 99.1% Zn. A composite material was adopted to solidify the fine clay that was enriched with a large amount of metals and form it into non-fired bricks. As seen from the mass balance, 23 kg of stone and 140 kg of gravel were separated, and 367 kg of fine clay with a 45% soil moisture content was treated by solidification and stabilization, achieving a volume reduction of approximately 36.5%. In conclusion, the presented method can be applied to heavy-metal-contaminated sites to greatly reduce the amount of pollutants in soils while at the same time minimizing the environmental risk. (C) 2018 Elsevier Ltd. All rights reserved. |
| WOS关键词 | HEAVY-METALS ; REMOVAL ; ZN ; IMMOBILIZATION ; TECHNOLOGIES ; COMBINATION ; ZINC ; EDTA ; PB ; CR |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23000000] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-ZS-2016-5-5] |
| WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000457952500008 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/49909]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liao, Xiaoyong |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100099, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing Key Lab Environm Damage Assessment & Reme, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, You,Liao, Xiaoyong,Li, Wunan. Combined sieving and washing of multi-metal-contaminated soils using remediation equipment: A pilot-scale demonstration[J]. JOURNAL OF CLEANER PRODUCTION,2019,212:81-89. |
| APA | Li, You,Liao, Xiaoyong,&Li, Wunan.(2019).Combined sieving and washing of multi-metal-contaminated soils using remediation equipment: A pilot-scale demonstration.JOURNAL OF CLEANER PRODUCTION,212,81-89. |
| MLA | Li, You,et al."Combined sieving and washing of multi-metal-contaminated soils using remediation equipment: A pilot-scale demonstration".JOURNAL OF CLEANER PRODUCTION 212(2019):81-89. |
入库方式： OAI收割
来源：地理科学与资源研究所
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