北克拉卡马斯县水务委员会（NCCWC）水处理厂位于 克拉卡马斯河，由日出水务局（SWA）Oak Lodge共同所有 格拉德斯通水区和城市。该工厂为全球超过40000名客户提供服务 俄勒冈州东南部波特兰郊区。现有的10 mgd慢速砂滤厂已建成 建造于1997年，使用低压、浸没式管道将其扩建至25 mgd 膜技术。选择了美国过滤器公司的CMF浸没式微滤系统 为了扩张。扩建后的设施是新老设施的独特组合， 将最早的过滤技术？慢砂过滤？与最新的 技术？浸没膜？平行运行。这项工程进度很紧。现有工厂已满负荷运行，并增加了 为了满足夏季高峰需求，需要尽快用水。通过快速通道 项目团队以伙伴关系和合作为重点的创新过程 能够选择膜供应商，完成设计，选择通用 承包商，并在17个月内基本完成施工。膜供应商选择后，同时进行验证中试试验 有设计。这一初步测试证实，供应商的建议是保守的 适当的设计标准，工厂设计可以继续进行。有趣的是， 这是一个基于资质的膜制造商选择过程 推广比传统低价竞标更合理的设计标准 方法 在验证测试之后，NCCWC选择参与AWWARF研究 题为“直接和澄清水过滤的膜处理优化” （AWWA，2005年）。这项研究提供了独特的机会进行比较和对比 台架和中试规模分析的结果。本演示文稿总结了 这两种数据收集工作的结果清楚地表明 每种方法在制定全面设计标准和预测系统性能方面的益处 全面的工厂。该预测性能还与全尺寸数据进行了比较 在工厂运营的前10个月收集。最后，本研究提出 总结对设计专业人士的建议，说明其优点和适用范围 利用台架和中试规模的数据高效、经济地开发全规模 膜处理厂设计。这些信息将帮助那些在水中的人 随着膜技术的全面实施，该行业持续增长。包括桌子。

The North Clackamas County Water Commission (NCCWC) WTP is located along the Clackamas River, and is co-owned by the Sunrise Water Authority (SWA), Oak Lodge Water District and City of Gladstone. The plant serves over 40,000 customers in the southeast suburbs of Portland, Oregon. The existing 10 mgd Slow Sand Filter Plant was constructed in 1997 and was expanded to 25 mgd using low pressure, submerged membrane technology. US Filter's CMF submerged microfiltration system was selected for the expansion. The expanded facility is a unique combination of new and old, combining the earliest filtration technology ¿¿¿¿¿¿¿¿ slow sand filtration ¿¿¿¿¿¿¿¿ with the latest in technology ¿¿¿¿¿¿¿¿ submerged membranes ¿¿¿¿¿¿¿¿ operating in parallel. The project was under a tight schedule. The existing plant was at capacity, and additional water was needed as quickly as possible to meet summer peak demands. Through a fast-tracked and innovative process focused on partnership and cooperation, the project team was able to select the membrane supplier, complete the design, select the general contractor and substantially complete construction in 17 months. Following membrane vendor selection, validation pilot testing was performed concurrent with design. This pilot testing confirmed that the vendor proposed conservatively appropriate design criteria, and the plant design could proceed unchanged. Interestingly, this was a qualifications-based selection process for the membrane manufacturer, which promoted more reasonable design criteria than a traditional low-bid approach. Following validation testing, NCCWC elected to participate in an AWWARF Study entitled "Optimization of Membrane Treatment for Direct and Clarified Water Filtration" (AWWA, 2005). This study provided the unique opportunity to compare and contrast results from bench- and pilot-scale analysis. This presentation summarizes the findings from each of the two types of data collection efforts, clearly demonstrating the benefits of each in developing full-scale design criteria and predicting the performance of the full-scale plant. This predicted performance is also compared to full-scale data collected during the first 10-months of plant operation. Finally, this study presents a summary of recommendations to design professionals on the benefits and appropriate use of bench and pilot scale data to efficiently and cost-effectively develop full-scale membrane treatment plant designs. This information will assist those in the water industry as full-scale implementation of membrane technology continues to grow. Includes table.