自从微咸水反渗透（RO）膜的开发以来，它们的使用受到了限制 发展迅速。所有主要反渗透膜制造商都开发了一种或多种反渗透膜 更多微咸水反渗透膜。在过去的十年里，这些膜已经出现了 价格的大幅下降和生产力的提高导致了咸水 海水淡化在缺水地区是一个有吸引力的选择。最新一代的 微咸水反渗透膜在运行性能方面有显著改善 这可能会降低微咸水处理的成本。这篇论文 介绍了在这些新一代低压泵上进行的先导试验的结果 用于地下水淡化的微咸水反渗透膜。 设计了两种新膜 经过测试——ESPA 4由加利福尼亚州Oceanside Hydranautics，Inc.和4040 BL制造 由韩国Saehan Industries制造。Hydranautics，Inc.是一家 在美国建立了薄膜制造商，而Saehan Industries目前没有 在美国市场占有一席之地。老一代膜（来自 Hydranautics）也与新一代膜并行运行，以 提供基线数据进行比较。该项目是一项研究的一部分 由海水淡化研究与创新伙伴关系发起的项目，包括 南加州地区的供水商。包括表格、数字。

Since the development of brackish water reverse osmosis (RO) membranes their use has seen rapid development. All major RO membrane manufacturers have developed one or more brackish water RO membranes. In the last ten years these membranes have seen a large decrease in price and an increase in productivity making brackish groundwater desalination an attractive option in water scarce regions. The latest generation of brackish water RO membranes has shown marked improvements in terms of operating pressure and this could translate into lower costs for brackish water treatment. This paper presents the results of pilot testing conducted on these new generation low pressure brackish water RO membranes for groundwater desalination. Two new membranes were tested - ESPA 4 manufactured by Hydranautics, Inc, Oceanside, CA and 4040 BL manufactured by Saehan Industries, South Korea. Hydranautics, Inc. is a well established membrane manufacturer in the US while Saehan Industries does not currently have a presence in the US market. An older generation membrane (ESPA 2 from Hydranautics) was also operated in parallel with the new generation membranes to provide baseline data for comparison. This project was conducted as a part of a research program initiated by Desalination Research and Innovation Partnership, which consists of water purveyors in the Southern California region. Includes tables, figures.