得克萨斯州阿比林市扩大了供水和处理设施，以应对一场大规模的洪水 淡水供应减少。阿比林已经开始处理微咸的地表水供应 （O.H.艾维湖，总溶解固体（TDS）~1200 mg/L，硫酸钡结垢可能性高，颜色20-40 CU）， 这需要使用高级处理工艺，以达到可接受的成品 水TDS和颜色级别。根据原水水质，设计了双膜系统 选择（微滤后反渗透）来完成处理 目标。水处理设施的一期产能为6-mgd，未来将进行扩建 可能达到18mgd。 本文描述了整个项目的开发，其中包括水源水 质量和去除要求、处理工艺选择和设施设计。那么 讨论工厂建设、调试和设施运行。 处理挑战包括颜色去除、盐度降低、浊度控制和 从地表水源中去除病原体和/或灭活病原体。此外 膜处理产品水在分配系统中混合，必须 与现有供水和处理设施的水兼容。 初级处理过程包括添加硫酸铁混凝剂（颜色和溶解有机碳（DOC）） 用于去除悬浮固体和病原体的微滤（MF），以及分流 用于溶解固体还原的反渗透（RO）。最终处理步骤包括 消毒（去除病毒的游离氯和残留消毒剂的氯胺），以及 pH值调整和腐蚀控制（氢氧化钠）。部分MF产品是水 绕过反渗透处理，并与反渗透渗透混合，从而减少所需的反渗透 提高产能，降低总体成本。 包括表格、数字。

The City of Abilene, Texas has expanded its water supply and treatment facilities to combat a dwindling fresh water supply. Abilene has begun treating a brackish surface water supply (Lake O.H. Ivie, total dissolved solids (TDS)~ 1,200 mg/L, high barium sulfate scaling potential, color 20-40 CU), which requires the use of an advanced treatment process to achieve acceptable finished water TDS and color levels. Based on the raw water quality, a dual membrane system (microfiltration followed by reverse osmosis) was selected to accomplish the treatment goals. The Phase I capacity of the water treatment facility is 6-mgd with future expansions possible to 18-mgd. This paper describes the development of the overall project, which includes source water quality and removal requirements, treatment process selection, and facility design. It then discusses the plant construction, commissioning, and operation of the facility. Treatment challenges include color removal, salinity reduction, turbidity control, and pathogen removal and/or inactivation from the surface water supply sources. Furthermore, the membrane-treated product water is blended in the distribution system and must be compatible with water from existing supply and treatment facilities. The primary treatment process includes ferric sulfate coagulant addition (color and dissolved organic carbon (DOC) reduction), microfiltration (MF) for suspended solids and pathogen removal, and split stream reverse osmosis (RO) for dissolved solids reduction. Final treatment steps include disinfection (free chlorine for virus removal and chloramines for residual disinfectant), and pH adjustment and corrosion control (sodium hydroxide). Some of the MF product water bypasses the RO treatment and blends with RO permeate which reduces the needed RO capacity and lowers overall costs. Includes tables, figures.