德克萨斯州的阿比林和威奇托瀑布正在扩大供水和处理设施，并面临类似的挑战——缺乏可用的淡水供应。这两个社区将为其扩建项目处理微咸水地表水供应，膜系统容量为每天600-1000万加仑（mgd）。处理方面的挑战包括降低盐度、控制浊度、消除不可接受的味道和气味，以及去除地表水供应源中的病原体和/或使其失活。此外，经过膜处理的产品水将被混合，并且必须与现有供水和处理设施的水兼容。 计划中的处理包括双膜工艺、用于去除悬浮固体和病原体的微滤（MF）或超滤（UF），然后是用于减少溶解固体的反渗透（RO）。最终处理步骤包括消毒和腐蚀控制。在阿比林，一些MF/UF产品水将绕过反渗透处理，并与反渗透渗透水混合，以降低工厂反渗透部分的容量，降低总体成本。由于并非所有的水都将在阿比林进行反渗透处理，因此在MF/UF之前使用混凝剂可以实现一些颜色和溶解的有机还原。在威奇托瀑布，计划使用RO处理所有成品水。 包括桌子。

Abilene and Wichita Falls, Texas are expanding their water supply and treatment facilitiesand face similar challenges--the lack of available fresh water supply. Both communitieswill be treating brackish surface water supplies for their expansion projects with membranesystem capacities in the 6-10 million gallons per day (mgd) range.Treatment challenges include salinity reduction, turbidity control, elimination ofobjectionable tastes and odors, and pathogen removal and/or inactivation from the surfacewater supply sources. Furthermore, the membrane-treated product water will be blendedand must be compatible with water from existing supply and treatment facilities.Planned treatment includes dual-membrane processes, microfiltration (MF) or ultrafiltration(UF) for suspended solids and pathogen removal, followed by reverse osmosis (RO) fordissolved solids reduction. Final treatment steps include disinfection and corrosion control.At Abilene, some of the MF/UF product water will bypass the RO treatment and blend withRO permeate, to reduce the capacity of the RO part of the plant and lower overall costs.Because not all of the water will receive RO treatment at Abilene, some color and dissolvedorganic reduction will be achieved by using a coagulant prior to MF/UF. At Wichita Falls,it is planned that all finished water will be treated with RO. Includes tables.