Abstract:

Coagulating pretreatment has been adopted. The treatment of wastewater from tap water productio （sandfiltering back wash wastewater） is carried through by establishing the 100 000 u of ultrafiltration membrane technology and composing coagulation/membrane technology. The results of pilot-scale test show that the combination of coagulating pretreatment with membrane subassemblies makes the subassemblies work stably and the effluent water quality excellent. The water quality reaches the drinking water quality standard perfectly,indicating this technology is suitable for the treatment of sand-filtering backwash wastewater.

Key words: ultrafiltration membrane, sand-filtering backwash wastewater, coagulation/membrane combination technology

摘要：

采用混凝预处理,用10万u超滤膜组成的混凝/膜组合工艺进行自来水的生产废水(砂滤反洗废水)的处理实验。中试试验结果表明:混凝预处理与膜组件结合,使膜组件运行稳定,出水水质良好,水质完全达到饮用水水质标准,此工艺适合砂滤反洗废水的处理工程应用。

关键词: 超滤膜, 砂滤反洗废水, 混凝/膜组合工艺

CLC Number: 

• X703