本powerpoint演示文稿首先简要概述了德克萨斯州休斯顿市的供水设施及其用于水凝结的聚合物， 絮凝、过滤和污泥脱水 过程。最有价值的技术 介绍了联邦采购，以及选择供应商、测试聚合物性能和成本效益的过程。陈述结论如下:不同 阴离子和非离子聚合物的品牌 对絮凝和过滤几乎没有影响 过程；阳离子聚合物的性能 与混凝剂剂量有关； 具有 混凝剂剂量越高，混凝剂的效果越好 固体上的聚合物和总有机碳（TOC）的去除 相对疏忽；用一个 低剂量的凝固剂，聚合物 对水处理工艺有很大影响；而且，休斯顿已经取得了成功 将阳离子聚合物用量减少至30% 在SEWPP， EWPP的还原一次混凝剂聚合物 从70毫克/升到60毫克/升，以及 使水质保持在同一水平。包括桌子。

This powerpoint presentation begins by providing a brief overview of the city of Houston, Texas, water utilities and its use of polymers for water coagulation, flocculation, filtration, and for sludge dewatering processes. Best value techniques used in federal procurements are presented, along with the process of selecting a supplier, and testing polymers for performance and cost effectiveness. Presentation conclusions indicate the following: different brands of the anionic and nonionic polymers have little impact on flocculation and filtration processes; the performance of cationic polymers is related to coagulant dosages; with higher coagulants dosages, the effects of the polymers on solids and total organic carbon (TOC) removal are relatively negligent; with a low dose of the coagulant, the polymers make much impact on water treatment processes; and, Houston has successfully reduced the cationic polymer dosage up to 30% at the SEWPP, reduced primary coagulant polymer at EWPP from 70 to 60 mg/L, and maintained the water quality at the same level. Includes tables.