DI SEPARAZIONE NELL'ESTRAZIONE DI UN METODO PER ELIMINARE L'INFLUENZA LIQUIDO. DI TENSIOATTIVI SULLE PROPRIETA'

摘要

The invention relates to a method wherein dissolved materials are removed from an aqueous solution by means of a liquid extraction comprising an extraction step and a re-extraction step, the essential features of the method being that the extraction step is performed in the presence of surfactants and that the surfactants are removed in connection with the re-extraction step.