超声波预处理-生物降解复合工艺处理含油污泥

摘要

以超声辐照和生物降解复合工艺处理油田含油污泥，辐照30min后，连续曝气4h的污泥中COD去除率比未经辐照的污泥COD去除率增幅85．7％，除油率增幅为66．7％；超声辐照强度对含油污泥处理效果影响较大，输出电压从50V增至250V时，COD去除率从10％增至70％，除油率则先增加后降低，在200V左右时除油率最高达60％。%A complex technique constituted of ultrasonic irradiation and biodegrading was use to treat oily sludge. After 30 min of ultrasonic irradiation, the COD degradation rate was more than 85.7%, the oil removing rate was 66. 7%. The effect of ultrasonic irradiation intensity on the oily sludge degradation was also great. The COD degradation rate increased from 10% to 70% as the voltage increased from 50 V to 250 V. The oil removing rate increased first and decreased. It reached the maximal 60% at the voltage of 200 V.