Experimental investigation of virus and clay particles cotransport in partially saturated columns packed with glass beads

2015 ◽  
Vol 440 ◽  
pp. 140-150 ◽  
Author(s):  
Vasiliki I. Syngouna ◽  
Constantinos V. Chrysikopoulos
Keyword(s):  
Experimental Investigation ◽  
Glass Beads ◽  
Clay Particles ◽  
Partially Saturated

scholarly journals Comprehensive experimental investigation on biomass‐glass beads binary fluidization: A data set for CFD model validation

AIChE Journal ◽  
2019 ◽  
Vol 66 (2) ◽  
Author(s):  
Xi Gao ◽  
Jia Yu ◽  
Cheng Li ◽  
Rupen Panday ◽  
Yupeng Xu ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Model Validation ◽  
Glass Beads ◽  
Cfd Model ◽  
Data Set

Experimental investigation on a three-phase closed thermosyphon with glass beads/water

2019 ◽  
Vol 154 ◽  
pp. 157-170 ◽  
Author(s):  
Xiaoling Chen ◽  
Feng Jiang ◽  
Guopeng Qi ◽  
Siyao Lv ◽  
Qi Feng ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Glass Beads ◽  
Three Phase

Application of a Simple Cold Stub to the Direct Observation of Frozen Hydrated Sand

1973 ◽  
Vol 31 ◽  
pp. 212-213
Author(s):  
John M. Wehrung ◽  
Richard J. Harniman
Keyword(s):  
United States ◽  
Surface Water ◽  
Direct Observation ◽  
Controlled Study ◽  
Clay Particles ◽  
Organic Debris ◽  
Rock Formations ◽  
Water Tables ◽  
Permeable Rock ◽  
Natural Means

Water tables in aquifer regions of the southwest United States are dropping off at a rate which is greater than can be replaced by natural means. It is estimated that by 1985 wells will run dry in this region unless adequate artificial recharging can be accomplished. Recharging with surface water is limited by the plugging of permeable rock formations underground by clay particles and organic debris.A controlled study was initiated in which sand grains were used as the rock formation and water with known clay concentrations as the recharge media. The plugging mechanism was investigated by direct observation in the SEM of frozen hydrated sand samples from selected depths.

Environmental microscopy of capillary stress-induced strain behavior in ambient-pressure aerogels

1996 ◽  
Vol 54 ◽  
pp. 850-851
Author(s):  
Sudeep M. Rao ◽  
Joshua Samuel ◽  
Sai S. Prakash ◽  
C. Jeffrey Brinker
Keyword(s):  
Silica Aerogel ◽  
Ambient Pressure ◽  
Drying Shrinkage ◽  
Pore Filling ◽  
Silica Network ◽  
Strain Behavior ◽  
Partially Saturated ◽  
Capillary Stress ◽  
Wetting Liquid ◽  
Aerogel Films

Ambient pressure silica aerogel thin films have recently been prepared by exploiting reversible drying shrinkage caused by derivatization of the internal gel surface. Aerogels have porosities of upto 99.9% and due to the small size of the pores (few nanometers), large capillary stresses are produced in gels that are partially saturated with a wetting liquid. As a result of these capillary stresses, the flexible silica network undergoes strain which has been observed using environmental microscopy. This technique allows variation of the equilibrium vapor pressure and temperature, and a simultaneous monitoring of the deformation of the unconstrained film thickness. We have observed >600% deformation during the pore-filling and pore-emptying cycles. In this presentation, we discuss the unique stress-strain behavior of these films.Ref.: Sai S. Prakash, C. Jeffrey Brinker, Alan J. Hurd & Sudeep M. Rao, "Silica aerogel films prepared at ambient pressure by using surface derivatization to induce reversible drying shrinkage", Nature. Vol. 374, 30 March, 1995, 439-443.

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