本powerpoint演示文稿首先介绍了美国硝酸盐脆弱性、发生率和健康影响，并提供了有关最大污染物水平（MCL）违规和人口的统计数据。目前的混合解决方案和现有技术，如强碱阴离子（SBA）交换 概述了反渗透（RO）技术，以及这些解决方案的优势和挑战。网络上的新解决方案 范围包括: 离子交换技术的改进 优化治疗； 树脂的选择取决于水质； 在低硫酸盐水中，盐水循环是可行的； 生物还原；和 化学还原。概述了强碱阴离子（SBA）的改进，以及弱碱阴离子（WBA）交换、生物还原、化学还原、中试条件和时间表，并提供了去除硝酸盐的初步结果。

This powerpoint presentation begins by presenting nitrate vulnerability, occurrence and health effects in the U.S. Statistics on maximum contaminant levels (MCLs) violations and population are provided. The current solutions of blending and existing technologies such as strong base anion (SBA) exchange and reverse osmosis (RO) are outlined, along with the advantages and challenges of these solutions. New solutions on the horizon include: Ion Exchange Improvements to optimize treatment; resin selection depends on water quality; brine recycle feasible in low sulfate water; biological reduction; and, chemical reduction. Strong Base Anion (SBA) improvements are outlined, along with Weak Base Anion (WBA) Exchange, biological reduction, chemical reduction, pilot test conditions and schedule, and preliminary results of nitrate removal are provided.