在一项为期四个月的初步研究中，六种不同的10厘米x100厘米（4英寸x40英寸）螺旋缠绕（SW）纳滤（NF）膜元件并行运行，以处理低浊度地表水。该项目确定了NF对消毒副产物（DBP）前体的拒收；评价了低浊度地表水对膜污染的影响。

In a four month pilot study, six different 10 cm x 100 cm (4 in x 40 in) spiral-wound (SW) nanofiltration (NF) membrane elements were operated in parallel to treat a low turbidity surface water. This project determined the rejections of disinfection byproduct (DBP) precursors by NF; and evaluated membrane fouling by low turbidity surface waters.