Removal of NH₃ from leachate by electrochemical oxidation treatment

Electrochemical oxidation process is a promising treatment technology for the degradation of organic pollutants in water samples. few studies demonstrated that the electrochemical oxidation process plays a key role on the removal of nh3 from leachate. the removal efficiency of nh₃ increases with applied voltage very significantly, suggesting a very important role of mediated oxidation process. furthermore, ph and electrolyte are also participated strongly to enhance the removal of nh₃ in leachate. to optimize the operating conditions, the effects of nacl concentration, applied voltage, and ph of the solution were investigated statisticall by one-way anova; all factors were found as a significant factor with ! = 0.05 lower than 95% confidence level. however, the consumption energy was considered during electrochemical oxidation process. in chloride media, consumption energy is the lowest (33 kw h mg−¹), at 0.086 mol l−¹ nacl and 10 v, with high removal percentage of nh₃ which is 48%. in case of applied voltage, only 53% of nh₃ has been removed consuming more than 50 kw h mg−¹ after 105 min at 0.043 mol l−¹ nacl and 20 v. all results are treat d statistically by applying one-way anova, interval confidence 95% and p-value 0.05.