【摘要】 采用混凝和超滤膜联用技术进行处理长江地表原水的中试试验 .结果表明 ,这一工艺浊度去除率达 99.9% .溶解性有机物质量浓度 ρ(DOC)、锰法化学需氧量 (CODMn)和 2 5 4nm处的紫外吸光度A(UV2 54) 均有不同程度的去除 .与同期采用常规工艺相比 ,本工艺水质优且节约 2 / 3混凝剂 .处理系统连续运行 6月 ,膜压差仅从 0 .0 2MPa增加至 0 .0 34MPa,增长缓慢 .更多还原

【Abstract】 This paper deals with the pilot test of the Yangtze River by coagulation associated with ultrafiltration(UF).The results show that the removal efficiency of turbidity is 99.9% and that dissolve organic matter ρ (DOC),chemistry oxygen demand (COD),ultraviolet absorbance(at 254 nm) have been removed differently.The water quality is better and 2/3 coagulant is saved in comparison with the conventional treatment in the same period.Transmembrane pressure of UF system increases very slowly for running about 6 months,just from 0.02 MPa to 0.034 MPa.更多还原