COLUMN DISPLACEMENT EXPERIMENTS TO VALIDATE HYDROGEOCHEMICAL MODELS OF SEAWATER INTRUSIONS

Two sets of experimental data have been obtained flushing seawater thr ough columns packed with sediment which had previously been in equilib rium with freshwater. The sets of data contain the ion concentrations of the outflow and the physical and chemical parameters needed for the theoretical simulation of marine intrusion using a hydrogeochemical m odel. The results show the decisive importance of the Peclet number in the shape of the curves of variation of the different ions with time. (C) 1997 Elsevier Science B.V.