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Rheological Properties of Aqueous Colloidal Silica Suspensions Related to Amendment Delivery for Subsurface Remediation
Yang, Shuo1; Zhong, Lirong2; Li, Guanghe3
2018-02-01
发表期刊ENVIRONMENTAL ENGINEERING SCIENCE
ISSN1092-8758
卷号35期号:2页码:121-131
摘要Colloidal silica (fumed silica) suspensions tested as carriers for remedial amendment delivery in subsurface contaminant remediation and as media for underground contamination containment. Rheological behavior of the silica suspensions under subsurface environment is not well documented while this knowledge is essential for the preparation and field injection of the suspensions. This contribution is focused on rheological characteristics of colloidal silica suspensions under various environmental conditions relevant to remedial amendment delivery for subsurface remediation. Influence of silica particle concentration, water source, ionic strength, pH, aging, amendment type and concentration, and subsurface sediment on rheological behavior of silica suspensions was evaluated. This work is the first attempt to relate the rheology of aqueous silica suspension to subsurface injection and amendment emplacement. Impact of remedial amendment and subsurface sediment is reported for the first time. Addition of potassium permanganate (KMnO4) amendment to aqueous silica suspensions increased viscosity; while presence of alcohol amendment in suspensions decreased their viscosity. All tested suspension formulations exhibited shear thinning before gelation. Addition of amendment to suspensions did not reduce the degree of shear thinning. Gelation rate of silica suspensions was increased with silica concentration and with addition of sediments. Rheological characteristics of shear thinning colloidal silica suspensions were compared to that of shear thinning polymer xanthan gum solutions, which was also applied for amendment delivery in subsurface remediation.
关键词Colloidal Silica Suspension Gelation Remedial Amendment Delivery Rheology Shear Thinning
文章类型Article
WOS标题词Science & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1089/ees.2017.0040
收录类别SCI
语种英语
关键词[WOS]SHEAR-THINNING FLUID ; HYDRATION FORCES ; POLYMER-SOLUTIONS ; PERMANGANATE GEL ; PARTICLE-SIZE ; STABILITY ; BEHAVIOR ; AGGREGATION ; DISPERSIONS ; ELECTROLYTE
WOS研究方向Engineering ; Environmental Sciences & Ecology
WOS类目Engineering, Environmental ; Environmental Sciences
项目资助者National High Technology Research and Development Program of China(SS2013AA062607) ; Environmental Security Technology Certification Program (ESTCP) of the Department of Defense, United States(ER-0913) ; U.S. Department of Energy(DE-AC06-76RLO 1830)
WOS记录号WOS:000424025400007
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23992
专题研究所(批量导入)
作者单位1.Chinese Acad Sci, Inst Proc Engn, Beijing, Peoples R China
2.Pacific Northwest Natl Lab, Energy & Environm Directorate, 902 Battelle Blvd, Richland, WA 99352 USA
3.Tsinghua Univ, Sch Environm, Beijing, Peoples R China
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Yang, Shuo,Zhong, Lirong,Li, Guanghe. Rheological Properties of Aqueous Colloidal Silica Suspensions Related to Amendment Delivery for Subsurface Remediation[J]. ENVIRONMENTAL ENGINEERING SCIENCE,2018,35(2):121-131.
APA Yang, Shuo,Zhong, Lirong,&Li, Guanghe.(2018).Rheological Properties of Aqueous Colloidal Silica Suspensions Related to Amendment Delivery for Subsurface Remediation.ENVIRONMENTAL ENGINEERING SCIENCE,35(2),121-131.
MLA Yang, Shuo,et al."Rheological Properties of Aqueous Colloidal Silica Suspensions Related to Amendment Delivery for Subsurface Remediation".ENVIRONMENTAL ENGINEERING SCIENCE 35.2(2018):121-131.
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