采用吸附—混凝—高级化学氧化法 ,对庆大霉素废水进行处理 ,筛选出最佳的混凝条件及氧化条件。实验发现 ,采用聚合氯化铝 (PAC)和阳离子聚丙烯酰胺 (CPAM)复合混凝该废水 ,在pH为 8,PAC与CPAM的用量分别为 40 0mg/L和 10mg/L时混凝效果较好。混凝后的废水再用H₂O₂+Fe²⁺+UV氧化 ,当 pH为 3时 ,采取三次投加方式加入 2 .4g/LH₂O₂ ,紫外灯照射 6h ,取得了满意的结果 ,实验结果表明 :采用吸附—混凝—高级化学氧化处理庆大霉素废水是一种行之有效的途径。经该方法处理后的庆大霉素废水 ,其CODCr去除率为 99.1% ,脱色率达 10 0 % ,达到了医药行业废水排放标准。且该方法设备简单 ,易于下一步实现工业放大 ,是一种有较好开发前景的处理庆大霉素废水工艺。

The process of adsorption-coagulation-advanced chemical oxidation is used to treat gentamicin wastew ater and the best conditions of coagulation and oxidation are selected. Under the condition of pH 8, the effect of the coagulating treatment of the waste water is better when PAC and CPAM are used as coagulants and their feeding amount are 400 mg/ L and 10 mg/ L, respect ively. Then, when pH is equal to 3, the wastewater treated above is oxidized by H₂O₂/ Fe²⁺/ UV. When the exposure time of UV-light is 6 h, the satisfactory treatment effect is obtained. Experimental results show that, for gentamicin wastewater, the removal ratio of COD_Cr is 99. 1% and decolourisation rate is 100% by using the process. The gentamicin wastewater treated can reach the effluent standard of medical waste water.