SURFACTANT FLUSHING/WASHING--AN INNOVATIVE METHOD OF HAZARDOUS WASTE TREATMENT

THE TECHNICAL OBJECTIVES OF THIS PROPOSAL ARE ORIENTED TOWARD THE DEVELOPMENT OF SOIL SURFACTANT FLUSHING AND WASHING AS A LOW-COST, LOW-IMPACT, LOW-RISK, EFFECTIVE TECHNIQUE FOR THE REMOVAL AND ULTIMATE DESTRUCTION OF THE ORGANIC CONTAMINANTS IN SOIL. THESE OBJECTIVES ARE: DEMONSTRATION OF THE EFFECTIVENESS OF AN IONIC SURFACTANT SOLUTION AT CONCENTRATIONS ABOVE THE CRITICAL MICELLE CONCENTRATION TO SOLUBILIZE WEATHERED-IN, HIGHLY ADSORBED CONTAMINANTS IN SOILS. FURTHER INVESTIGATION OF THE EFFECTIVENESS OF MODIFIED SOLVENT EXTRACTION AS A MEAN OF RECLAIMING CONTAMINANT-LADENSURFACTANT SOLUTION FOR RECYCLE AND/OR CONCENTRATION FOR DISPOSAL. INVESTIGATION OF THIN FILM AERATION AS A TECHNIQUE FOR RECLAIMING SURFACTANT SOLUTIONS INVESTIGATION OF A PHASE DISTRIBUTION APPROACH TO MICELLAR SOLUBILIZATION. DEVELOPMENT OF A LUMPED PARAMETER MODIFICATION OF AN EXISTING MATHEMATICAL MODEL FOR SOIL SURFACTANT FLUSHING WHICH PERMITS ITS APPLICATION TO FRACTURED BEDROCK AND TO HIGHLY INHOMOGENEOUS SOILS.