摘要：介绍了采用国产大功率倒伞曝气机的表曝型氧化沟设计及设备选型，指出了在运行中应注意的问题，供设计人员参考。关键词：表曝型氧化沟 除磷脱氮 倒伞曝气机Design for Wastewater Treatment Plant Using Surface Aeration Type Oxidation Ditch in Northwest PlateauAbstract:The paper mainly introduce how to design the oxidation ditch which adopting the domestic reverse umbrella aerator in the northwest plateau.Key words: surface aerator type oxidation ditch、nitrogen and phosphorus removal、reverse umbrella aerator西北地区（海拔1200米）某污水处理厂设计水量Q=30000m3/d，进出水水质参数如下表：表1 单位：mg/L名 称
