以超声波农药降解机为主的净菜加工生产线为试验设备,研究超声波功率和超声波辐射时间对小青菜表面残留的有机磷和氨基甲酸酯类农药降解的影响.结果表明,超声波功率对于有机磷和氨基甲酸酯类农药降解的影响非常明显,但当功率达到一定程度时农药降解趋于稳定.有机磷和氨基甲酸酯类农药降解率随着超声波辐射时间的延长而提高.考虑生产效率,对有机磷和氨基甲酸酯类农药的降解超声波功率可取2.4 kW,超声波辐射时间取4 min,降解率可达到80％.%One vegetable processing production line was used based on ultrasonic pesticide degradation machine as experimental equipment in this study.By controlling the different ultrasonic power and ultrasonic radiation time parameters,the pesticide degradation effects of organic phosphorus and carbamate remaining on the surface of a small green vegetables with different ultrasonic power and ultrasonic radiation time were analyzed.The results showed that the ultrasonic power for organic phosphorus and carbamate pesticide degradation effect was very obvious.However,when the ultrasonic power reached to a certain degree,the pesticide degradation tend to be changless.The relationship between the ultrasonic irradiation time and the degradation of organic phosphorus and carbamate pesticides was as follows:the degradation rate increased with the increase of ultrasonic irradiation time.From the consideration of production efficiency,for the degradation of organic phosphorus and carbamate pesticides ultrasonic power was 2.4 kW,with ultrasonic radiation for 4 min,the degradation rate could reach 80％.
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