EXPERIMENTAL STUDY OF MASS TRANSPORT IN SATURATED POROUS MEDIA: "MODELING IN THE LABORATORY"
Journal Title: Larhyss Journal - Year 2017, Vol 29, Issue 29
Abstract
This work is part of the understanding of the mechanisms of transport and retention of suspended matter in a saturated porous medium. It concerns the transport of suspended particles (SP) and the dissolved tracer (DT). The experiments are based on instantaneous injections of these two tracers (SP and DT). The tracing was carried out for a Darcy velocity range from 0.052 to 0.285 cm/s, the purpose of which is to study the influence of flow velocity on the phenomenon of transport and deposition of suspended particles. An analytical model of convection-dispersion with first order deposition kinetics made it possible to adjust the restitution curves and to deduce the hydro-dispersive parameters. This experimental study made it possible to demonstrate that the particles in suspension arrive behind the dissolved tracer (fluorescein). This difference in behavior is attributed mainly to the weights, size and frequency of collision of the particles with the grains of the medium. This study also showed that the rate of restitution and dispersion increase with speed. The retention rate and the filtration coefficient decrease as the speed increases.
Authors and Affiliations
IKNI T. | Laboratoire de Recherche en Hydraulique Appliquée et environnement (LRHAE), Département d’Hydraulique, Université de Bejaia, Algérie, BERREKSI A. | Laboratoire de Recherche en Hydraulique Appliquée et environnement (LRHAE), Département d’Hydraulique, Université de Bejaia, Algérie, BELHOCINE M. | Laboratoire de Recherche en Hydraulique Appliquée et environnement (LRHAE), Département d’Hydraulique, Université de Bejaia, Algérie, NEBBAR M. L. | Département d’Hydraulique, Université de M’Sila, Algérie, BENKADJA R. | Département d’Hydraulique, Université de M’Sila, Algérie
Keywords
Related Articles
- EP ID EP15287
- DOI -
- Views 382
- Downloads 18
CARACTERISATION ET CLASSIFICATION EMPIRIQUE, GRAPHIQUE ET STATISTIQUE MULTIVARIABLE D’EAUX DE SOURCE EMBOUTEILLEES DE L’ALGERIE
This study aimed to physico-chemical characterization and classification of Algerian bottled spring water, by analyzing: characteristics ratios of major elements, Piper diagram, Stuyfzand Classification, correlation mat...
EVALUATION DE L’EFFICACITE DE LA STATION D’EPURATION DE MEDEA (ALGERIE) EVALUATING EFFECTIVENESS OF WASTEWATER TREATMENT PLANT OF MEDEA (ALGERIA)
The work of the present study is aimed at determining the physical and chemical parameters of the wastewater or the effluent, at inlet and outlet of the treatment plant from Médéa. The values of some physico-chemica...
NUMERICAL SIMULATION OF WATER FLOW ALONG STEPPED SPILLWAYS WITH NON UNIFORM STEP HEIGHTS
Stepped spillway is a good hydraulic structure for energy dissipation because of the large value of the surface roughness. The performance of the stepped spillway is enhanced with the presence of air that can prevent o...
SUR L’ANISOTROPIE DES SABLES EOLIENS DE BOUTELDJA (NORD-EST DE L’ALGERIE)
L’étude du phénomène d’anisotropie affectant les sables éoliens de Bouteldja (Nord-Est algérien), est conduite sous le double aspect hydrodynamique et géophysique. Les variations de la perméabilité et de la...
LE KSAR DE TIOUT (ALGERIE) : LA MAITRISE DE LA GESTION DE L’EAU ET DE LA PROTECTION DE L’ENVIRONNEMENT
In this study we treat one of the ksour that lies on the mountains of ksours of the Saharan Atlas. This is the Ksar of Tiout. These ancestral homes were constructed with exemplary architecture and with remarkable know...