Sustainable stabilization/solidification of arsenic-containing soil by blast slag and cement blends
文献类型：期刊论文
| 作者 | Li, Jiang-shan4,5; Chen, Liang3; Zhan, Baojian2; Wang, Lei1; Poon, Chi Sun3,5; Tsang, Daniel C. W.3 |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 271页码:8 |
| 关键词 | Stabilization/solidification Green and sustainable remediation Soil remediation and recycling Arsenic immobilization Low-carbon binders |
| ISSN号 | 0045-6535 |
| DOI | 10.1016/j.chemosphere.2021.129868 |
| 英文摘要 | Arsenic (As) is a naturally occurring trace element that may pose a threat to human health and the ecosystem, while effective remediation and sustainable reuse of As-containing soil is a challenge. This study investigated the geoenvironmental characteristics of a geogenic As-rich soil, and green binders (ground granulated blast slag (GGBS) and cement blends) were employed for the stabilization/solidification (S/S) of the soil under field-relevant conditions. Results indicate that the use of 10% binder could effectively immobilize As and chemical stabilization/physical encapsulation jointly determined the leaching characteristics of the S/S soils. The geogenic As could be effectively immobilized at the pH range of 5.5-6.5. The increasing use of GGBS enhanced the strength of the 28-d cured S/S soils because of long-term pozzolanic reaction, but also slightly improved the As leachability. Besides, the moisture content of the contaminated soils should be suitably adjusted to allow for desirable compaction of S/S soils, which resulted in high compressive strength and low of As leachability. Results show that soil moisture content of 20% was the most appropriate, which resulted in the highest strength and relatively lower As leaching. In summary, this study presents a sustainable S/S binder for recycling As-contaminated soil by using a combination of cement and GGBS. (C) 2021 Elsevier Ltd. All rights reserved. |
| 资助项目 | Hong Kong Research Grants Council[PolyU 15223517] ; National Natural Science Foundation of China/Hong Kong Research Grants Council Joint Research Scheme[N_PolyU511/18] ; National Natural Science Foundation of China/Hong Kong Research Grants Council Joint Research Scheme[51861165104] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000633464400119 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/25984]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Poon, Chi Sun; Tsang, Daniel C. W. |
| 作者单位 | 1.Tech Univ Dresden, Inst Construct Mat, D-01062 Dresden, Germany 2.Shenzhen Univ, Coll Civil & Transportat Engn, Shenzhen Durabil Ctr Civil Engn, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Guangdong, Peoples R China 3.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 5.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Hung Hom, Kowloon, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jiang-shan,Chen, Liang,Zhan, Baojian,et al. Sustainable stabilization/solidification of arsenic-containing soil by blast slag and cement blends[J]. CHEMOSPHERE,2021,271:8. |
| APA | Li, Jiang-shan,Chen, Liang,Zhan, Baojian,Wang, Lei,Poon, Chi Sun,&Tsang, Daniel C. W..(2021).Sustainable stabilization/solidification of arsenic-containing soil by blast slag and cement blends.CHEMOSPHERE,271,8. |
| MLA | Li, Jiang-shan,et al."Sustainable stabilization/solidification of arsenic-containing soil by blast slag and cement blends".CHEMOSPHERE 271(2021):8. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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