Transport of Ferrihydrite Nanoparticles in Saturated Porous Media: Role of Ionic Strength and Flow Rate

2012 ◽  
Vol 46 (7) ◽  
pp. 4008-4015 ◽  
Author(s):  
Tiziana Tosco ◽  
Julian Bosch ◽  
Rainer U. Meckenstock ◽  
Rajandrea Sethi
Keyword(s):  
Porous Media ◽  
Ionic Strength ◽  
Flow Rate ◽  
Saturated Porous Media

Co-transport of U(VI) and akaganéite colloids in water-saturated porous media: Role of U(VI) concentration, pH and ionic strength

2018 ◽  
Vol 147 ◽  
pp. 350-361 ◽  
Author(s):  
Mengtuan Ge ◽  
Dengjun Wang ◽  
Junwei Yang ◽  
Qiang Jin ◽  
Zongyuan Chen ◽  
...  
Keyword(s):  
Porous Media ◽  
Ionic Strength ◽  
Saturated Porous Media ◽  
Water Saturated

scholarly journals Transport and retention of colloidal particles in partially saturated porous media: Effect of ionic strength

2009 ◽  
Vol 45 (12) ◽  
Author(s):  
Yuniati Zevi ◽  
Annette Dathe ◽  
Bin Gao ◽  
Wei Zhang ◽  
Brian K. Richards ◽  
...  
Keyword(s):  
Porous Media ◽  
Ionic Strength ◽  
Colloidal Particles ◽  
Saturated Porous Media ◽  
Media Effect ◽  
Partially Saturated ◽  
Partially Saturated Porous Media

Importance of Al/Fe oxyhydroxide coating and ionic strength in perfluorooctanoic acid (PFOA) transport in saturated porous media

2020 ◽  
Vol 175 ◽  
pp. 115685 ◽  
Author(s):  
Xueyan Lyu ◽  
Xing Liu ◽  
Xiaoli Wu ◽  
Yuanyuan Sun ◽  
Bin Gao ◽  
...  
Keyword(s):  
Porous Media ◽  
Ionic Strength ◽  
Perfluorooctanoic Acid ◽  
Saturated Porous Media

The effect of pH and ionic strength on the transport of alumina nanofluids in water-saturated porous media

2019 ◽  
Vol 137 (4) ◽  
pp. 1169-1179
Author(s):  
Maliheh Zareei ◽  
Hossein Yoozbashizadeh ◽  
Hamid Reza Madaah Hosseini
Keyword(s):  
Porous Media ◽  
Ionic Strength ◽  
Saturated Porous Media ◽  
Effect Of Ph ◽  
Water Saturated

Cotransport of naphthalene with polystyrene nanoplastics (PSNP) in saturated porous media: Effects of PSNP/naphthalene ratio and ionic strength

Chemosphere ◽  
2020 ◽  
Vol 245 ◽  
pp. 125602 ◽  
Author(s):  
Enzhu Hu ◽  
Siyao Shang ◽  
Zhongtian Fu ◽  
Xin Zhao ◽  
Xiangli Nan ◽  
...  
Keyword(s):  
Porous Media ◽  
Ionic Strength ◽  
Media Effects ◽  
Saturated Porous Media

Transport of sucrose-modified nanoscale zero-valent iron in saturated porous media: role of media size, injection rate and input concentration

2015 ◽  
Vol 72 (9) ◽  
pp. 1463-1471 ◽  
Author(s):  
Hui Li ◽  
Yong-sheng Zhao ◽  
Zhan-tao Han ◽  
Mei Hong
Keyword(s):  
Porous Media ◽  
Packed Column ◽  
Injection Rate ◽  
Zero Valent Iron ◽  
Silica Sand ◽  
Saturated Porous Media ◽  
Input Concentration ◽  
K Value ◽  
Nanoscale Zero Valent Iron

The growing use of nanoscale zero-valent iron (NZVI) in the remediation of contaminated groundwater raises concerns regarding its transport in aquifers. Laboratory-scale sand-packed column experiments were conducted with bare and sucrose-modified NZVI (SM-NZVI) to improve our understanding of the transport of the nanoparticles in saturated porous media, as well as the role of media size, suspension injection rate and concentration on the nanoparticle behavior. As the main indicative parameters, the normalized effluent concentration was measured and the deposition rate coefficient (k) was calculated for different simulated conditions. Overall, compared to the high retention of bare NZVI in the saturated silica column, SM-NZVI suspension could travel through the coarse sand column easily. However, the transport of SM-NZVI particles was not very satisfactory in a smaller size granular matrix especially in fine silica sand. Furthermore, the value of k regularly decreased with the increasing injection rate of suspension but increased with suspension concentration, which could reflect the role of these factors in the SM-NZVI travel process. The calculation of k-value at the tests condition adequately described the experimental results from the point of deposition dynamics, which meant the assumption of first-order deposition kinetics for the transport of NZVI particles was reasonable and feasible.

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