Inventor: Dr. Teacher Wadood Tahir Mohammed/Department of Chemical Engineering, College of Engineering, University of Baghdad
Abstract
A novel design of a reactor to remove heavy metals such as lead from simulated wastewaters via electrocoagulation method by the using of concentric tubes electrodes made of aluminum. The efficiency of the electrochemical cell was investigated by measuring the final concentration of lead in the results using (Atomic Absorption Spectroscopy – AAS). The operational variables were the initial concentration of lead (10-300 ppm), time of electrolysis (5-60 minutes), speed of mixing (0-300 rpm), pH (2-12) and electric current (0.2-2.6 ampere).
The experiments were designed using Box Wilson method and modeled by Response Surface Methodology (RSM) and Minitab statistical software. The innovative system has shown the effect of the shape and configuration design of the electrodes on the possibility of removal of lead metal from the simulated wastewater. The present research showed that the novel electrocoagulation reactor was highly efficient in producing the useful aluminum hydroxide which it is very important in the process of adsorption and thus a high removal ratio of lead from contaminated water without using of any additional of chemical coagulants or adsorbent materials such as the conventional methods.