本文主要研究纳滤膜的除铁特性 在佛罗里达州劳德代尔堡和哈兰代尔海滩进行评估。两阶段和单元素测试 使用撬块对比斯坎含水层上的6种不同膜进行了评估，结果显示: 渗透水中的主要铁目标低于0.15 mg/L。本研究的原水 最大溶解氧（DO）水平为2.2 mg/L，导致局部中毒 将1.5 mg/L亚铁离子转化为氢氧化亚铁。同时分离氧化和 过滤是一种可行的替代方法，pH值调整被认为是最简单的解决方案。包括表格，数字。

This paper focuses on the iron removal characteristics of nanofiltration (NF) membranes evaluated in Ft. Lauderdale and Hallandale Beach, Florida. Both 2 stage and single element test skids were used in the evaluation of 6 different membranes on the Biscayne Aquifer with a primary iron goal of less than 0.15 mg/L in the permeate water. The raw water for this study contained a maximum Dissolved Oxygen (DO) level of 2.2 mg/L which resulted in a partial conversion of the 1.5 mg/L ferrous ion to ferrous hydroxide. While separate oxidation and filtration was a viable alternative, pH adjustment was deemed to be the easiest solution. Includes table, figures.