中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
DOI10.1016/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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