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Lessons Learned from the Replacement of a Pressurized Membrane System with the Latest Generation of Immersed Membranes 用最新一代浸入式膜更换加压膜系统的经验教训
发布日期: 2006-11-01
东南莫里斯县市政公用事业管理局(管理局)克莱德·波茨水库 已经为新泽西州莫里斯镇的居民服务了70多年。在那段时间里 处理设施的发展是为了应对新的水质法规。原著 建于1935年的处理仅限于氯胺化和石灰调节pH值。在里面 1984年,管理局建造了一座直接压滤厂,以应对新的浊度 标准。1998年,管理局建造了一个0.5 MGD的示范膜处理装置 工厂应符合地表水处理规则的要求。 示威游行 该设施使管理局能够评估这种相对较新的技术和技术的有效性 获得宝贵的经验和运营数据。示范设施是由 进行桌面治疗评估和一系列试点测试,然后投标 膜系统。为示范设施提供的膜是加压的 类型根据示范工厂的运营情况,管理局于2000年开始 设计了一个全尺寸的2.5 MGD膜装置。新工厂使用浸没式 膜,于2004年11月成功投入运行。 项目介绍 几项挑战包括: 根据业主使用加压膜系统的经验,情况有所不同 考虑到技术的进步,膜系统可用于全尺寸工厂?; 作为示范工厂的一部分,薄膜是通过招标采购的 与安装合同分开,是否有“更好”的方法 实施整个膜工程,业主应考虑设计建造或鞋底 膜的来源?; 鉴于膜技术的快速发展,有哪些设计改进 是否可以对设施进行改造,以防止系统过时?; 和 现场附近没有下水道,因此需要清理所有残留物 要么回收,在当地溪流中处理,要么拖出现场。满刻度 工厂回收了99.9%的原水。废物排放仅限于回收和回收 维护清洁。 本文介绍了管理局对这些挑战的回应。此外,膜 讨论了操作历史。运行2年后,膜清洗已完成 超出了设计预期。目前,每3个月进行一次恢复清洗。 因为制造商最近才在 施工期间,大约2年的运行数据可用,且 讨论。业主还实施了一个基于网络的膜管理系统 薄膜供应商。这种最先进的基于web的诊断系统的性能非常好 也进行了讨论。包括桌子。
The Southeast Morris County Municipal Utilities Authority's (Authority) Clyde Potts Reservoir has been serving the residents of Morristown New Jersey for over 70 years. Over that time, the treatment facilities have evolved in response to new water quality regulations. The original treatment, constructed in 1935 was limited to chloramination and pH adjustment with lime. In 1984, the Authority constructed a direct pressure filtration plant in response to the new turbidity standards. In 1998, the Authority constructed a 0.5 MGD demonstration membrane treatment plant to comply with the requirements of the Surface Water Treatment Rule. The demonstration facility enabled the Authority to assess the effectiveness of this relatively new technology and gain valuable experience and operating data. The demonstration facility was procured by performing a desktop treatment evaluation and a series of pilot tests and then bidding of the membrane system. The membranes provided for the demonstration facility were a pressurized type. Based on the operation of the demonstration plant, in 2000 the Authority commenced with the design of a full-scale 2.5 MGD membrane plant. The new plant, which uses immersed membranes, was placed into successful operation in November 2004. The project presented several challenges including the following: based on the Owner's experience with a pressurized membrane system, was a different membrane system warranted for the full-scale plant given advances in technology?; as part of the demonstration plant, the membranes were procured by bidding of the membranes separately from the installation contract, was there a "better" way to implement the entire membrane project, and should the Owner consider design build or sole sourcing the membranes?; given the rapid advancements in membrane technology, what design enhancements could be made to the facility to prevent the system from becoming obsolete?; and, there were no sewers in the vicinity of the site and therefore all residuals needed to be either recycled, disposed of in a local stream, or hauled off site. The full scale plant recycles 99.9% of the raw water. Waste discharge is limited to recovery and maintenance cleans. The Authority's response to these challenges is presented in this paper. In addition, the membrane operating history is discussed. After 2 years of operation, the membrane cleaning has exceeded design expectations. Currently recovery cleans are being performed every 3 months. Since the membranes that were used had only been recently introduced by the manufacturer at the time of construction, approximately 2 years of operating data is available and is discussed. The Owner has also implemented a web based membrane management system with the membrane vendor. The performance of this state of the art web based diagnostic system is also discussed. Includes tables.
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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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