肯塔基州哈丁斯堡市（City）目前拥有并运营着160万加仑的燃油 day（MGD）地表水处理厂位于极端的粗糙河流水库上 肯塔基州布雷金里奇县南部。目前的水处理厂（WTP） 从一条支流取水至水库的主干。几年来，这座城市 一直在与原水取水构筑物的淤积问题和 由于水库蓄水层有机物含量高，因此产生了消毒/消毒剂副产品（D/DBP） 水 自1999年以来，该市一直在寻找和评估新的、可靠的供水水源 他们的顾客。2001年，该市决定将水处理厂迁至冲积层 沿着该县东北部的俄亥俄河（距离 现有水处理厂。）2001年7月，确定存在丰富的水源 为城市服务的新工厂，现在和未来多年。然而，最初的水 质量测试结果表明，硬度高（>300 mg/l CaCO3）和硝酸盐含量高（8 mg/l） ±）在地下水源中。该市已确定当地的地下水是最好的 新水处理厂可用的原水来源，因为他们不想继续面临 与地表水处理有关的水库水问题，他们目前正在 经验根据提议的地下水资源，该市开始评估最新技术 满足当前饮用水质量法规的处理技术，以及 为将来的法规做准备。 选择的处理技术是低压反渗透（LPRO），以去除废水 高硬度和高水平的硝酸盐与一个处理过程。这种处理技术 这是肯塔基州第一个处理饮用水的地下水 饮用水系统。饮用水处理项目将包括一个现场膜 处理该地下水源的中试。本文讨论了这些步骤 以及为进行为期90天的试点研究而制定的方案，以证明硬度和稳定性 利用LPRO去除硝酸盐。本文还讨论了试点研究如何帮助 评估和制定设计标准，包括操作条件和原水 混合比例，以满足城市为本项目制定的水质目标 最终产品。包括表格、数字。

The City of Hardinsburg, Kentucky (City) currently owns and operates a 1.6 million gallon per day (MGD) surface water treatment plant located on Rough River Reservoir in the extreme southern portion of Breckinridge County, Kentucky. The current water treatment plant (WTP) obtains its water from a tributary to the main stem of the reservoir. For several years, the City has been battling with siltation problems with the raw water intake structure and the formation of disinfection/disinfectant byproducts (D/DBP) due to the high organic content of the reservoir's water. Since 1999, the City has been looking for and evaluating new and reliable raw water sources for their customers. In 2001, the City made the decision to relocate the WTP to the alluvium fields along the Ohio River in the northeast part of the county (approximately 20 miles from the existing WTP.) In July 2001, it was determined that an abundant source of water was available for a new plant to serve the City, now and for many years into the future. However, initial water quality test results, indicated high hardness (> 300 mg/l CaCO3) and high nitrate levels (8 mg/l ±) in the groundwater source. The City has determined that the local groundwater was the best available raw water source to use for the new WTP, as they did not want to continue facing problems associated with surface water treatment of the reservoir water that they currently experience. Based on the proposed groundwater source, the City began evaluating state-of-the-art treatment technologies to meet the current drinking water quality regulations as well as being prepared for future regulations. The treatment technology chosen was low-pressure reverse osmosis (LPRO) to remove the high hardness and high levels of nitrates with one treatment process. This treatment technology is the first of its kind in the State of Kentucky for the treatment of groundwater for a potable drinking water system. The drinking water treatment program will include an on-site membrane pilot test for the treatment of this groundwater source. This paper discusses the procedures and protocol developed for conducting the 90-day pilot study demonstrating hardness and nitrate removal utilizing LPRO. The paper also discusses how the pilot study assisted in the evaluation and development of design criteria including operating conditions, and raw water blending percentages in order to meet the water quality goals established by the City for the final product. Includes tables, figures.