超声波诱导降解甲胺磷

Decomposition of Methamidophos by Ultrasonic Wave

报道了用超声波诱导降解模拟水中低浓度甲胺磷农药的可行性试验。试验中探讨了声强、辐射时间、温度、初始 p H和外加亚铁盐或 H2 O2 等对降解效果的影响。试验结果表明 ,在甲胺磷浓度为 1.0× 10 - 4 mol/ L、起始 p H2 .5、温度 30℃、Fe2 + >5 0 mg/ L、充 O2 至饱和的条件下 ,用低频超声波 (80 W/ cm2 )连续辐照 12 0 min,甲胺磷去除率达到 99.3%。

A test for decomposition of low concentration methamidophosin in simulated wastewater by ultrasonic wave was carried out.The effects of sonic intensity,irradiation time,temperature,initial pH,dose of Fe 2+ or H 2O 2 on decomposition were explored.The results indicated that the removal rate of methamidophos came up to 99.3% under the following conditions:1.0×10-4 mol/L of methamidophos concentration,initial pH2.5,30℃ of temperature,Fe 2+ >50mg/L,saturated oxygen,80W/cm2 of wave intensity and 120min of irradiation.