测定了在南加州奥兰治县高颜色地下水源上运行的八种反渗透膜的有机物和无机物截留特性。这八种膜都能去除地下水中的颜色。另外，对四种膜——两种微咸水（BW）和两种软化纳滤（NF）膜——在相对较高的通量率和较高的回收率下进行了长期测试。这些膜产生的颜色水平为3 pcu或更低，远低于当前饮用水标准的15个颜色单位。这两种膜都有效地去除了三卤甲烷的生成电位。NF膜比BW膜更节能。 包括24个参考文献、表格和图表。

The organics and inorganics rejection characteristics of eight types of reverse osmosis membranes operating on a source of highly colored groundwater in Orange County, Southern California, were determined. All eight membranes were capable of removing color from groundwater. Additional long-term testing of four membranes--two brackish water (BW) and two softening-nanofiltration (NF) membranes--was carried out at relatively high flux rates and increased recovery. These membranes produced a color level of 3 pcu or less, far below the current drinking water standard of 15 color units. Trihalomethane formation potential was effectively removed by both types of membrane. The NF membranes were more energy efficient than the BW membranes. Includes 24 references, tables, figures.