Continuous adsorption studies of pharmaceuticals in multicomponent mixtures by agroforestry biochar

In this study, the adsorption of a multicomponent mixture active pharmaceutical compounds, such as Venlafaxine (VLX), Trazodone (TRZ) and Fluoxetine (FLX), was studied in biochar fixed-bed column. The selection appropriate (eucalyptus, grapevine cane holm tree biochar) an adsorbent carried out through batch assays. An insight into mechanism its correlation with chosen biochars performed, showing that electron donor/acceptor interaction is main involved. Equilibrium kinetic experiments were performed results demonstrated eucalyptus most viable option for removal pollutants, individually combined. Column Thomas, Yoon-Nelson Yan models adjusted to breakthrough curves. This system exhibited synergetic behavior TRZ antagonist VLX FLX, when compared single systems previously evaluated treatment real wastewaters, spiked has efficiency mixtures. Finally, regeneration by elution different solutions also investigated methanol proved be effective eluent column regeneration.