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The Reliability of an Advanced Water Treatment Facility for Indirect Potable Reuse 用于间接饮用水回用的先进水处理设施的可靠性
发布日期: 2000-01-01
都柏林圣拉蒙服务区(DSRSD)必须输出二级污水 该公司位于加利福尼亚州普莱森顿的区域废水处理设施 利弗莫尔阿马多尔河谷废水管理局(LAVWMA)通往 旧金山湾位于25英里以外。由于废水流量和 在LAVWMA出口管道的产能限制下,DSRSD实施了清洁生产计划 作为一种处理部分高峰期潮湿天气的方法,水资源恢复项目 流动。清洁水复兴项目的目标是生产再生水 在其区域废水处理设施进行间接饮用水再利用。这个 清洁水再生项目包括市政污水的深度处理 废水二级出水每天产生250万加仑(mgd) (每年2800英亩英尺)用于饮用水的软化循环水水源 饮用水供应的地下水补给。1000万美元的预付款 水处理(AWT)设施于1999年3月投入使用。该设施 工艺包括微滤和反渗透集成膜 系统,然后进行紫外线消毒。AWT过程是 旨在达到第三代病毒的最低5-log病毒清除要求 加州卫生服务部(DHS)规定的治疗流程 制定“低质量水产品回收”标准 浊度、总溶解固体和总有机碳。虽然国土安全部 1998年7月建议批准该项目,公众反对 该项目使该地区无法向当地供水 地下水注入井。公众的部分担忧集中在 产品水是否安全,处理工艺是否可行 持续生产符合监管要求的水。倍数 AWT的屏障设计方法,以及连续在线安装 监测各种水质成分有助于解决这些问题。 AWT设施的水质也在测试期间进行了验证 试运行后立即进行16周的性能测试计划 设施本文讨论了AWT设施的设计特点,包括 安装设备和水质监测的可靠性方面 设备和控制,以及设施迄今为止的性能。包括4个参考文献、表格和图表。
The Dublin San Ramon Services District (DSRSD) must export secondary effluent from its Regional Wastewater Treatment Facility in Pleasanton, California, via the Livermore-Amador Valley Wastewater Management Agency (LAVWMA) pipeline to the San Francisco Bay located 25 miles away. Due to increasing wastewater flows and capacity constraints in the LAVWMA export pipeline, DSRSD implemented its Clean Water Revival project as a method of disposing a portion of its peak wet-weather flows. The goal of the Clean Water Revival project is to produce recycled water for indirect potable reuse at their Regional Wastewater Treatment Facility. The Clean Water Revival project consists of the advanced treatment of municipal wastewater secondary effluent to produce a 2.5 million gallons per day (mgd) (2,800 acre-feet per year) demineralized recycled water source for potable groundwater replenishment of a potable water supply. The $10 million advanced water treatment (AWT) facility was commissioned in March 1999. The facility's processes consist of a microfiltration and reverse osmosis integrated membrane system, followed by ultraviolet light disinfection. The AWT processes are designed to achieve the minimum 5-log virus removal requirement for tertiary treatment processes stated in the California Department of Health Services (DHS) "Draft Water Recycling Criteria" and to produce a high quality product water low in turbidity, total dissolved solids, and total organic carbon. Although DHS recommended approval of this project in July 1998, public opposition to the project has prevented the District from being able to deliver water to groundwater injection wells. Part of the public's concerns have focused on whether the product water is safe and whether the treatment processes can continually produce water that meets the regulatory requirements. The multiple barrier design approach of the AWT, and the installation of continuous online monitoring of various water quality constituents help to address these concerns. Verification of the AWT facility's water quality was also conducted during a 16-week performance testing program immediately after the commissioning of the facility. This paper discusses the design features of the AWT facility, including reliability aspects of the installed equipment and water quality monitoring equipment and controls, and the performance of the facility to date. Includes 4 references, tables, figure.
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发布单位或类别: 美国-美国给水工程协会
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