MULTISPECIES TRANSPORT OF METAL-EDTA COMPLEXES AND CHROMATE THROUGH UNDISTURBED COLUMNS OF WEATHERED FRACTURED SAPROLITE

Materials and methods characterization of saprolite columns, saprolite excavation and physical properties. Miscible displacement experiments are examined. Chemical effluent analysis are divided into speciation and total elemental methods. Results and discussion on observed solute effluent concentrations for experiment complex mixtures of organically chelated radionuclides and toxics metals : Cr, Al, Cd, Fe. Observed speciation of column effluent solutions and soil. Dual and triple species injections of Co and Cd EDTA and HCrO4 are considered. Evaluation of influent remaining on soil.