The electrocoagulation technology is one of the effective methods used for wastewater treatment. Numerous environmental and sustainability advantages make electrocoagulation an increasingly attractive alternative for treating the water. In this study, the electrocoagulation method was used for removing reactive green dye from water by evaluating some of the operating parameters. Several experiments were conducted using aluminium electrodes. Factors considered include pH level (4.5, 7.5 and 10.5), distances between electrodes (0.5, 1, 2, and 3 cm), electrolysis (5, 10, 15 and 20 minutes), and applied electric current (5, 7.5, 10, and 12.5 volts). The optimal removal efficiency of reactive green dye was achieved under conditions of 12.5 volts electric current, pH of 7.5, for 20 minutes, and an interelectrode distance of 1 cm. The maximum removal efficiency was 98.82%. Electrochemical treatments have garnered considerable attention based on their simplicity and effectiveness.