【摘要】 以天津市某污水厂为对象,在不增加占地的前提下,通过A²/O+A/O工艺技术改造、新建浸没式超滤膜单元等方式,对原有的"A²/O+混凝沉淀+纤维转盘滤池"处理工艺进行了提标改造。运行结果表明,改造后的系统出水有较大幅度提升,COD_Cr、BOD₅、SS、TN、TP等各项指标均可稳定达到天津市《城镇污水处理厂污染物排放标准》（DB 12/599—2015） A标准要求。更多还原

【Abstract】 Taking a wastewater treatment plant in Tianjin as a case,the original treatment process of A²/O + coagulation + sedimentation + rotating fibre filter was upgraded and renovated,by means of A²/O + A/O technological transformation and new submerged UF membrane unit without increasing land occupation. The operational results showed that the effluent of the renovated system had been greatly improved,and indicators such as COD_Cr,BOD₅,SS,TN,TP could steadily meet the requirements of level A of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant（ DB 12/599—2015）.更多还原