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Microfiltration System Upgrade at the AWT

机译：微滤系统升级到AWT

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The Scottsdale Water Campus is a water resource management facility that maximizes the City of Scottsdale’s (City), recycled water production and minimizes their reliance on the multi-city owned regional wastewater treatment plant. The facility consists of a 20 mgd wastewater reclamation plant (WRP), which reclaims water for subsequent reuse in open access irrigation applications such as golf courses and an advanced water treatment plant (AWT) consisting of microfiltration (MF) and reverse osmosis (RO) systems. The AWT provides additional treatment of the tertiary effluent from the WRP for subsequent vadose zone injection. In continuing a vision of maximizing water recycling, the City has begun a project to expand the AWT facility. The project will ultimately allow the City to produce 20 mgd of product water for vadose zone injection. As part of the expansion project, the City is installing additional microfiltration capacity as required to achieve the new production goals. During the design portion of this project, the City made a few cunning decisions, including installation of the new microfiltration equipment inside of the existing microfiltration building and membrane system procurement through an innovative double design approach. The decision to install the new membrane systems inside of the existing building is noteworthy for a few reasons. The decision allowed the City to save a significant amount of money by not constructing new building space and allowed the City to save existing land for future expansion or other uses. However, the decision to install the MF systems inside of the building also placed additional constraints on the construction phase of the project since a significant portion of the existing system must remain in operation throughout the construction project. The key decision, to forgo the conventional pilot test-procurement approach for membrane system design and instead provide two detailed designs is unique. Use of this approach will likely allow Owners to have more input in critical treatment process decisions and may reduce the typical project schedule by eliminating the time required for pilot testing. This paper will describe in detail the new procurement approach used to supply membrane filtration equipment on this project, the results of the new procurement approach and observations made during the construction portion of this project. Additionally, this paper will describe design differences between the two systems, challenges associated with reusing building space and the commissioning process used to prove equipment conformance.
机译：斯科茨代尔校园是一种水资源管理设施，最大化斯科茨代尔（市），回收水资源生产，并尽量减少对多城市拥有的地区废水处理厂的依赖。该设施包括20 MGD废水填海工厂（WRP），该厂房（WRP）回收了随后在开放式接入灌溉应用中重复使用的水，例如高尔夫球场和由微滤（MF）和反渗透（RO）的先进水处理厂（AWT）。系统。 AWT为随后的Vadose区注射提供了来自WRP的三级流出物的额外处理。在继续探讨最大化水循环的愿景中，该市已开始扩大AWT设施的项目。该项目最终允许该市生产20 MgD的产品水分，用于Vadose区注射。作为扩建项目的一部分，该市根据需要安装额外的微滤能力，以实现新的生产目标。在该项目的设计部分期间，该市通过创新的双重设计方法制作了一些狡猾的决策，包括在现有的微滤建筑和膜系统采购内部安装新的微滤设备。由于几个原因，在现有建筑物内安装新膜系统的决定是值得注意的。该决定允许该市通过建造新的建筑空间来节省大量资金，并允许城市拯救现有土地以备将来的扩张或其他用途。然而，在建筑物内部安装MF系统的决定也在项目的施工阶段上放置了额外的限制，因为现有系统的重要部分必须在整个建筑项目中保持运行。关键决策，用于缩短膜系统设计的传统试验试验采购方法，而是提供两个详细设计是独一无二的。这种方法的使用可能允许所有者在关键治疗过程决策中拥有更多的输入，并且可以通过消除试验测试所需的时间来减少典型的项目时间表。本文将详细描述用于在该项目中提供膜过滤设备的新采购方法，新采购方法的结果和本项目建设部分的观察结果。此外，本文将描述两个系统之间的设计差异，与重用建筑空间和用于证明设备一致性的调试过程相关的挑战。

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