Utilização de argilominerais como adsorventes para a remoção de antibióticos: uma revisão da literatura.

Abstract

Several techniques have been studied and evaluated for the treatment of effluents, often contaminated by antibiotic drugs. Due to the widespread use of these drugs, mainly in recent years, the presence of these products in effluents is increasingly present. One of the techniques that allow this type of contaminant removal process in the treatment of these effluents is the adsorption process which stands out for its easy operation, and great capacity for regeneration of the adsorbent material. Among the adsorbent materials, there are the clays, which have a high adsorption capacity due to their characteristics like porosity, surface area and high ion exchange capacity. Beyond that, clays stand out for their low cost, their great abundance in nature and applicability in low concentrations when compared to other techniques. Like other adsorbents, clays can be modified to improve their adsorption capacity, through physical and chemical treatments, and pH control. Therefore, the objective of this work is to evaluate the adsorption capacity of clay minerals in the removal of antibiotics, and the influence of treatments on their adsorption process.