A^(2)O工艺和A^(2)O+MBR工艺运行效果对比

Comparison of A^(2)O process and A^(2)O+MBR process

以太原市某污水处理厂的两组工艺(A^(2)O工艺和A^(2)O+MBR工艺)为例,从出水浓度、去除率两方面对总磷、氨氮、化学需氧量、生物溶解氧四项指标进行了对比分析。经过一年的跟踪监测,检测结果表明:两种工艺的出水总磷、氨氮、化学需氧量、生物溶解氧浓度均优于GB18918-2002城镇污水污染排放标准中的一级A排放标准;A^(2)O+MBR工艺对总磷、氨氮、化学需氧量、生化需氧量的去除效果明显优于A^(2)O工艺。

Taking two sets of processes(A^(2)O process and A^(2)O+MBR process)of a sewage treatment plant in Taiyuan as an example,the total phosphorus,ammonia nitrogen,chemical oxygen demand,and biochemical oxygen demand were measured from the two aspects of the effluent concentration and removal rate Four indicators were compared and analyzed.After a year of follow-up monitoring,the test results showed that the total phosphorus,ammonia nitrogen,chemical oxygen demand,and biological dissolved oxygen concentration in the effluent of the two processes were better than those in GB18918-2002 urban sewage pollution discharge standards.The first-class A emission standard;the A^(2)O+MBR process is significantly better than the A^(2)O process in removing total phosphorus,ammonia nitrogen,chemical oxygen demand,and biological dissolved oxygen.