There have been a lot of concerns regarding the pollution in aquatic resources. Since then, there has been a remarkable scientific work in order to remove all sorts of pollutants and offer a reasonably clean environment. In this effort, we show synthesis and characterization of activated carbon (AC) from date pits by various thermal treatments and two different porosities. Furthermore, we demonstrate the removal of four hazardous dyes from simulated waste water via adsorption using three packed bed column as semi batch process. The adsorption experiments demonstrated smooth running flow for the threated water and good removal efficiency for all dyes with some variations. These variations will be adequately displayed and discussed.