Feasibility study on salting-in of organic pollutants to enhance the effectiveness of ex-situ soil washing

摘要

The feasibility of using a salting-in effect for leaching organic pollutants from subsurface materials was investigated. Two clay samples with contrasting properties and three well- characterized soil samples were spiked with nitrobenzene, a priority contaminant, and experimental desorption equilibrium studies were conducted. By using aqueous solutions of benzoic acid ammonium salt with a concentration range from zero to 72/100 of saturation, desorption isotherms were generated.