Treatment of landfill leachate by coupling system of titanium dioxide and ultrasonic
超声波-TiO2光催化联合处理垃圾渗滤液

The effects of TiO2 dosage,ultraviolet,ultrasonic,pH and aeration on degradation of COD and N-NH+4 in landfill leachate were studied by the ultrasonically enhanced photocatalytic technology.The results showed that removal rates of COD and NH3-N reached 50.1% and 75%,respectively,when the TiO2 dosage was 2 g/L,pH was 11,ultrasonic(292.5 W)was radiated 3min and high pressure mercury lamp(250 W) irradiated 3 min.The removal rate of NH3-N could reach to 85.3% by aerated under the same conditions,but the removal...