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比较了３ 种低压膜对地下水净化处理中在特征产水量与去除ＴＤＳ、电导率、ｐＨ 值、硬度和ＣＯＤＭｎ 上的差异，同时考察了操作压力、水温对膜性能的影响。
The differences of characteristic water yield, removal of TDS, conductivity, pH value, hardness and CODMn of three kinds of low pressure membrane in groundwater purification were compared. The effects of operating pressure and water temperature on membrane performance were also compared.