Study on treatment of wastewater containing complex copper by TiO2 photocatalysis
TiO2光催化处理络合铜废水的实验研究

Based on suspended TiO2,photocatalysis of wastewater containing complex copper was studied under ultraviolet.The different variables affecting the removal efficiency of copper such as dosage of TiO2,reaction time,initial pH value,reaction atmosphere and mechanism were investigated.The result showed that the removal rates of copper and COD in wastewater were the highest,96.56%and 57.67%,respectively,under the following optimum conditions: TiO2 dosage of 2 g/L,initial pH value of 4,irradiation of high-pressure mercury lamp of 300 W,concentration of EDTA of 120 mg/L and air pressed into the wastewater continuously in 40 minutes with the speed of 60 mL/min.