METHOD, DECONTAMINANT AND CHEMICAL KIT FOR THE DECONTAMINATION OF MEDIA POLLUTED BY METALS AND HYDROPHOBIC ORGANIC COMPOUNDS

摘要

The invention relates to a method for decontaminating a medium polluted by metals and hydrophobic organic compounds (COH), that comprises: (a) obtaining an acidic pulp from water, an acid, a chloride salt, a surfactant and the polluted medium; (b) making a floatation on the acidic pulp in order to form a COH-rich foam and a COH-depleted pulp; (c) recovering the foam; and (d) separating the depleted foam in order to obtain a processed solid and a liquid effluent rich in metal ions. The invention also relates to a decontaminant containing an acid, a chloride salt and a surfactant, and to a chemical kit for decontaminating a polluted medium, that comprises the decontaminant in which the acid, the chloride salt and the surfactant can be mixed with the polluted medium in the presence of water before removing a portion at least of the metals and of the COH from the polluted medium.