Process for the removal of heavy metals from aqueous fluids by adsorption, and use

摘要

Process for the removal of heavy metals from aqueous fluids by adsorption, and use ".It is described a process for the removal of heavy metals from aqueous fluids by adsorption, the process comprising placing in contact with the aqueous fluid contaminated by one or more heavy metals.With a sorbent which is the residue of the process of retortagem of oil shale in a proportion from 0.1 to 10 g of shale for each 100 ml of the aqueous fluid contaminated, the pH between 1 and 5.Under the conditions of temperature between 30 and 60 198 C, under agitation between 100 and 400 rpm for 10 minutes to 10 hours, the ambient pressure, and after contact.Separating the adsorbent contaminated with heavy metals, recovering the aqueous fluid from which these metals have been removed.The invention further describes the use of the material shale retortado in the process of the invention.