本powerpoint演示文稿首先提供西邓迪水处理村处理问题的背景信息。涉及两个处理厂。现有Angle Tarn工厂使用: 离子交换-1.67 MGD； 软化除钡； 阳离子，氯化钠再生；和 四艘船。新的Randall Oaks工厂仍在建设中，使用: 相同的设计/含水层； 离子交换-1.37 MGD； 软化除钡；和 阳离子，氯化钠再生。 医院的治疗问题 Angle Tarn工厂包括:无残留问题； 再生剂废物排放至盐水池并计量至污水管； >200mg/l钡； 再生剂用量约50000加仑/天； 福克斯河WRD北污水处理厂——10 MGD；和 飞行员位置。当时有一个残差问题 Randall Oaks工厂，包括: 排放至东邓迪污水处理厂的废物； 预期钡含量相同； 较小的电厂——0.4 MGD（低流量）； 无法满足NPDES许可； 钡含量<6 mg/L；和 全方位定位。主题包括:原水质量；过程描述；设备指南；逆快速设备图；反快速剖视图；还有，西邓迪试点布局。结果显示了以下主题:试运行；操作参数；化学处理；钡去除；净化水水质；污泥特性；污泥脱水试验；结果是镭。

This powerpoint presentation begins by providing background information on a treatment issue at the Village of West Dundee Water Treatment. Two treatment plants were involved. The existing Angle Tarn Plant that uses: Ion Exchange - 1.67 MGD; Softening and Barium Removal; Cationic, NaCl regeneration; and, four vessels. The new Randall Oaks plant is still under construction and uses: the same design/aquifer; Ion Exchange - 1.37 MGD; Softening and Barium Removal; and, Cationic, NaCl regeneration. The treatment issue at the Angle Tarn Plant consisted of: no residuals problem; regenerant waste discharged to brine pit and metered to sanitary sewer; > 200 mg/l Barium; Regenerant Volume ~ 50,000 GPD; Fox River WRD North WWTP - 10 MGD; and, Pilot Location. There was a residuals problem at the Randall Oaks Plant that consisted of: waste discharged to East Dundee WWTP; same Barium loading expected; smaller plant - 0.4 MGD (Low flow); unable to meet NPDES permit; Barium < 6 mg/L required; and, Full Scale Location. Topics covered include: raw water quality; process description; equipment guidelines; CONTRAFAST Equipment Diagram; CONTRAFAST Cutaway view; and, West Dundee Pilot Layout. Results are presented of the following topics: pilot operation; operating parameters; chemical treatment; barium removal; treated water quality; sludge characteristics; sludge dewatering trial; and, radium results.