Enhanced delivery of engineered Fe-Mn binary oxides in heterogeneous porous media for efficient arsenic stabilization
文献类型：期刊论文
| 作者 | Yan, Xiulan3; Fei, Yang1,3; Yang, Xiao3; Liang, Tao3; Zhong, Lirong2 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2022-02-15 |
| 期号 | 424页码:9 |
| 关键词 | Heterogeneity Bifunctional Fe-Mn oxides Arsenic stabilization In-situ remediation Shear thinning fluid |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2021.127371 |
| 英文摘要 | Heterogeneity in sediment and aquifer is universal, resulting in preferential flows of injected materials in the high permeability regions and forming flow by-passed zones in the low permeability regions during in-situ subsurface remediation. This adverse effect can considerably delay the completion of remedial operations and significantly increase the cost. Column experiments were designed and conducted to study the transport of starch- and starch-xanthan gum modified Fe-Mn binary oxide particles (SFM and SXFM) in saturated heterogeneous porous media and to reveal the particles' arsenic (As) stabilization performance. Fine-in-Coarse (FIC) and Coarse-in-Fine (CIF) patterns of heterogeneous packings were set up in the columns. Testing results demonstrated that starch-xanthan gum dual treatment on Fe-Mn binary oxides successfully improved the particles' migration capability in heterogeneous porous media and their distribution uniformity attributed to the profound shear thinning behavior of xanthan gum solution. The addition of xanthan gum to the system increased the viscosity and shear thinning property of the SXFM suspension, making it a better candidate for delivery. Both SFM and SXFM stabilized As in heterogeneously packed sediment collected from a contaminated site, with SXFM showing better stabilization performance than SFM. The stabilization effects of SXFM were 90.7-97.0%, compared to 82.0-95.2% of SFM. |
| WOS关键词 | REMEDIAL AMENDMENT DELIVERY ; SHEAR THINNING FLUID ; XANTHAN GUM ; TRANSPORT ; SIZE ; IMMOBILIZATION ; RETENTION ; PARTICLES ; FATE ; PH |
| 资助项目 | National Natural Science Foundation of China[41571309] ; U.S. DOE[DE-AC06-76RLO 1830] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000703846800002 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; U.S. DOE |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/165991]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 作者单位 | 1.Tech Ctr Soil Agr & Rural Ecol & Environm, Minist Ecol & Environm, Beijing 100012, Peoples R China 2.Pacific Northwest Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Xiulan,Fei, Yang,Yang, Xiao,et al. Enhanced delivery of engineered Fe-Mn binary oxides in heterogeneous porous media for efficient arsenic stabilization[J]. JOURNAL OF HAZARDOUS MATERIALS,2022(424):9. |
| APA | Yan, Xiulan,Fei, Yang,Yang, Xiao,Liang, Tao,&Zhong, Lirong.(2022).Enhanced delivery of engineered Fe-Mn binary oxides in heterogeneous porous media for efficient arsenic stabilization.JOURNAL OF HAZARDOUS MATERIALS(424),9. |
| MLA | Yan, Xiulan,et al."Enhanced delivery of engineered Fe-Mn binary oxides in heterogeneous porous media for efficient arsenic stabilization".JOURNAL OF HAZARDOUS MATERIALS .424(2022):9. |
入库方式： OAI收割
来源：地理科学与资源研究所
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