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1Porous media grain size distribution and hydrodynamic forces effects on transport and deposition of suspended particles显示文摘The effects of porous media grain size distribution on the transport and deposition of polydisperse suspended particles under different flow velocities were investigated. Selected Kaolinite particles(2–30 μm) and Fluorescein(dissolved tracer) were injected in the porous media by step input injection technique. Three sands filled columns were used: Fine sand,Coarse sand, and a third sand(Mixture) obtained by mixing the two last sands in equal weight proportion. The porous media performance on the particle removal was evaluated by analysing particles breakthrough curves, hydro-dispersive parameters determined using the analytical solution of convection–dispersion equation with a first order deposition kinetics, particles deposition profiles, and particle-size distribution of the recovered and the deposited particles. The deposition kinetics and the longitudinal hydrodynamic dispersion coefficients are controlled by the porous media grain size distribution. Mixture sand is more dispersive than Fine and Coarse sands. More the uniformity coefficient of the porous medium is large, higher is the filtration efficiency. At low velocities, porous media capture all sizes of suspended particles injected with larger ones mainly captured at the entrance.A high flow velocity carries the particles deeper into the porous media, producing more gradual changes in the deposition profile. The median diameter of the deposited particles at different depth increases with flow velocity. The large grain size distribution leads to build narrow pores enhancing the deposition of the particles by straining.Nasre-Dine Ahfir Ahmed Hammadi Abdellah Alem HuaQing Wang Gilbert Le Bras Tariq Ouahbi 2017Journal of Environmental Sciences2017，29，3：6
2Filtration of kaolinite particles in a saturated porous medium: hydrodynamic effects显示文摘Abdellah Alem Abdulghadir Elkawafi Nasre-Dine Ahfir HuaQing Wang 2013Hydrogeology Journal2013，，3：1
3Influence of internal structure and medium length on transport and deposition of suspended particles: a laboratory study显示文摘AHFIR N D BENAMAR A ALEM A 2009Transport in Porous Media2009，76，2：1
4Flow velocity effects on the transport and the deposition rate of suspended particles in a saturated porous medium显示文摘BENAMAR A WANG H Q AHFIR N D 2005Comptes Rendus Geoscience2005，337，5：1
5Influence of internal structure and medium length on transport and deposition of suspended particles:A laboratory study显示文摘AHFIR N D BENAMAR A ALEM A 2009Transport in Porous Media2009，76，2：1
6Filtration of kaolinite particles in a saturated porous medium:Hydrodynamic effects显示文摘ALEM A ELKAWAFI A AHFIR N D 2013Hydrogeology Journal2013，21，3：1
7Suspended particles transport and deposition in saturated granular porous medium:Particle size effects显示文摘BENNACER L AHFIR N D BOUANANI A 2013Transport in Porous Media2013，100，3：1
8Transport and deposition of suspended particles in saturated porous media:Hydrodynamic effect显示文摘AHFIR N D WANG H Q BENAMAR A 2007Hydrogeology Journal2007，15，4：1
9Influence of Internal Structure and Medium Length on Transport and Deposition of Suspended Particles: A Laboratory Study显示文摘Nasre-Dine Ahfir Ahmed Benamar Abdellah Alem HuaQing Wang 2009Transport in Porous Media2009，，：1
10Transport and deposition of suspended particles in saturated porous media: hydrodynamic effect显示文摘AHFIR N D WANG H Q BENAMAR A 2007Hydrogeology Journal2007，15，4：1
11Influence of Internal Structure and Medium Length on Transport and Deposition of Suspended Particles: A Laboratory Study显示文摘Nasre-Dine Ahfir Ahmed Benamar Abdellah Alem HuaQing Wang 2009Transport in Porous Media2009，，2：1
12Transport and deposition of suspended particles in saturated porous media: hydrodynamic effect显示文摘Comparison of the transfer Contaminant Hydrology AHFIR N D WANG H Q BENAMAR A 2007Hydrogeology Journal2007，15，4：1
13Transport and deposition of suspended particles in saturated porous media: hydrodynamic effect显示文摘Nasre-Dine Ahfir Hua Qing Wang Ahmed Benamar Adbellah Alem Nicolas Massei Jean-Paul Dupont 2007Hydrogeology Journal2007，，4：1
14Flow velocity effects on the transport and the deposition rate of suspended particles in a saturated porous medium显示文摘BENAMARA WANG H Q AHFIR N D 2005Comptes Rendus Geoscience2005，337，5：1
15Influence of Internal Structure and Medium Length on Transport and Deposition of Suspended Particles: A Laboratory Study显示文摘Nasre-Dine Ahfir Ahmed Benamar Abdellah Alem HuaQing Wang 2009Transport in Porous Media2009，，2：1
16Influence of internal structure and medium length on transport and deposition of suspended particles: A laboratory study显示文摘AHFIR N D BENAMAR A ALEM A 2009Transport in Porous Media2009，76，2：1
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