【摘要】 通过改进的烧杯混凝试验确定了混凝 微滤膜组合工艺的混凝剂 (PAC)适宜投加量为 2～ 3mg/L。在该混凝剂投加量条件下 ,进行了混凝 微滤膜组合工艺处理微污染水源水的连续试验。结果表明 ,该工艺对浊度 ,OC以及UV2 54 的去除效率分别为 85%～ 95% ,37%～ 52 %和 58%～ 81% ,优于膜直接过滤时的去除效果更多还原

【Abstract】 By an improved jar test the suitable dosage of coagulant PAC for a combination process of coagulation and microfiltration (MF) was determined as 2～3 mg/L. Under this dosage condition, a laboratory test of coagulation MF process was continuously conducted to treat slightly polluted raw water. It was found that the removal ratios were 85%～95%, 37%～52% and 58%～81% for turbidity, OC and UV 254 respectively. These were 24% and 26% higher for OC and UV 254 respectively than those of the direct membrane filtration process without coagulation. In the continuous operation, the characteristics of MF fell down fast at beginning and then decreased slowly and went stable. At the stable period, MF characteristics of the coagulation MF process were found to be lower than that of the membrane filtration without coagulation. The mechanism needs to be studied further.更多还原