Using photovoltaic to remove heavy metals from industrial water

Abstract EN

Heavy metals pollution has become a more serious environmental problem in the last several decades as a result of releasing toxic materials into the environment.

The aim of this study is to develop an ecological method for the removal of Ni2+ ions from industrial wastewater by an electro coagulation method using aluminum plates and solar cell as a source of D.

C current.

In this study, different conditions of pH of 4, 6, 7, and 8, current densities of 0.5, 1.0, and 1.5 mA/cm2, and nickel ion concentrations of 200, 300, and 500 ppm were investigated during a period of time of 120 minutes to remove nickel ions prepared waste water by electro coagulation.

The total removal of nickel ions was (97.5- 99.5% ), (97- 99% ), and (96.67-98.8% ) for pH (4-8), current density (0.5-1.5 mA/cm2) and nickel ions concentration (200-500 ppm), respectively.

The results show that the optimum condition of electro coagulation process can be obtained at pH = 8 and current density 1.5 mA/cm2 when 120 minutes were elapsed.