超声反应器耦合生物填料塔处理印染废水新工艺

采用连续式超声反应器耦合曝气生物填料塔处理印染废水厂一级出水；实验分析对比了不同组合工艺对废水COD和色度去除情况。试验结果表明，采用生物处理→（超声+活性炭）处理→生物处理组合工艺对印染废水的处理效果最好。在进水COD为600-1000 mg/L，色度为320倍的条件下，先经生物处理7h后，再用60 kHz、80 kHz、100 kHz、125 kHz四组频率组合连续超声反应器协同活性炭处理2h(总输入电功率2000W，活性炭用量10g／L)，最后再经生物处理20h，出水COD和色度的去除率分别可达90％和95％，达到GB 4287-1992一级排放标准。

Novel treatment technology of dyeing effluent by coupling ultrasonic reactor with aerated bio-packing tower

Ultrasonic reactor or coupled with Aerated bio-packing tower was adopted to treat dyeing effluent ; the removal of COD and chroma was analyzed for different combined technology .The results showed that the combined technology of biology→( ultrasonic+ active carbon)→biology was the best of all to treat the dyeing effluent with COD 600-1000 mg／L and chroma 320; that the removal rate of COD and chroma reached 90％ and 95％ respectively，and the final effluents can reach primary grade discharge standard of GB 4287- 1992 after treated 7h by biology and then 2h by combining four frequencies ultrasonic of 60 kHz、80 kHz、100 kHz、125 kHz together with active carbon at the total input electric power of 2000W and active carbon addition of 10 g／L, last treated 20h by biology.