Utilization of Some Solid Wastes in the Field of Water Treatment

Abstract

The objective of this study is to investigate the efficiency of using drinking water treatment sludge (DWTS), light white brick (LWBW) and red brick (HOMRA) wastes as solid adsorbents for the removal of heavy metal ions like lead, cadmium and nickel from their aqueous solution. The physicochemical characteristics of each solid waste were investigated using X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy (SEM) and N2 adsorption-desorption isotherms. Besides, the effect of different parameters such as contact time, initial pH, initial metal ion concentrations, adsorbent dose and competition of metal ions on the adsorption of heavy metal ions was studied by using batch experiments. In addition, the effect of firing