Wetaskiwin市（加拿大阿尔伯塔省，人口11200）的水源来自煤炭湖 超富营养化水体。煤湖中含有大量有害毒素微囊藻毒素 由蓝藻（0.07至14.8微克/升）和高溶解有机物水平（高达49微克/升）释放 毫克/升）。处理厂不断受到浮游动物，尤其是桡足类的挑战 无节幼体。认识到藻类问题以及解决更严格的颗粒物污染问题的必要性 在未来的拆迁标准中，威塔斯基温市开始实施一项积极主动的计划 确定工厂改进要求。溶解气浮（DAF）和膜 这些技术被选为进一步试验的候选工艺。DAF过程奏效了 在这一应用中表现良好，其性能明显优于现有的脉动澄清器 后期（秋季）藻类去除。然而，DAF的表现并没有明显好于 现有脉动澄清器在去除颜色、浊度、有机物和早季中的应用 （春天）藻类。膜过滤在去除浊度、颗粒物方面非常有效 数量、藻类和浮游动物。本文回顾了水处理升级计划 以及如何利用研究结果制定升级路径，以解决 Wetaskiwin的水质和生产需求。包括4个参考文献、表格和图表。

City of Wetaskiwin (Alberta, Canada, population 11,200) obtains its water supply from Coal Lake, a hyper-eutrophic water body. Coal Lake contains high levels of microcystin, a harmful toxin released by cyanobacteria (0.07 to 14.8 µg/L) and high dissolved organic levels (as high as 49 mg/L). The treatment plant is continuously challenged by zooplankton, especially Copepod nauplii. In recognition of the algal concerns and the need to address more stringent particulate removal standards in the future, the City of Wetaskiwin embarked on a proactive program to identify plant improvement requirements. Dissolved Air Flotation (DAF) and membrane technologies were selected as candidate processes for further piloting. The DAF process worked well in this application and performed significantly better than the existing Pulsator clarifiers for late-season (Fall) algae removal. However, the DAF did not perform significantly better than the existing Pulsator clarifiers in the removal of color, turbidity, organic material and early-season (Spring) algae. Membrane filtration was extremely effective in removal of turbidity, particle counts, algae and zooplankton. This paper reviews the water treatment upgrade program undertaken, and how the study findings were used to chart an upgrade path that addresses Wetaskiwin's water quality and production needs. Includes 4 references, tables, figures.