【摘要】 偃师市某污水处理厂改扩建工程总设计规模为4万m3/d,改建工程采用改良CASS工艺,扩建工程采用选择厌氧、改良氧化沟工艺,出水达到《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A标准。针对现状污水厂工艺特点,分析并介绍了改建和扩建工程设计思路、设计参数、设备配置等情况。更多还原

【Abstract】 The design scale of reconstruction and extension of a sewage treatment plant in Yanshi city is 40 000 m3/d, and the improved CASS process was adopted in the reconstruction project. The anaerobic and improved oxidation ditch technology were adopted in the expansion project. After the reconstruction and extension, the effluent can reach the first-class A standard of "Emission Standards for Pollutants in Urban Sewage Treatment Plants"(GB18918-2002). According to the characteristics of sewage treatment plant, the design idea, design parameters and equipment configuration of the reconstruction and extension project were analyzed and introduced.更多还原