农副产品加工园区污水处理厂处理效果分析

Performance Analysis of Sewage Treatment Plant in Agricultural and Sideline Products Processing Park

某农副产品加工园区污水处理厂设计规模为5.0×10^(4)m^(3)/d,采用“A^(2)/O+高密度沉淀池+微过滤”组合工艺处理废水。运行结果显示,COD、氨氮、总氮和总磷平均出水浓度分别为20mg/L、0.40mg/L、6.6mg/L和0.15mg/L,出水水质可以稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)中的一级A标准,具有良好的经济和环境效益。

The design scale of a wastewater treatment plant in an agricultural and sideline products processing park was 5.0×10^(4) m^(3)/d.The combined process of"A^(2)/O(Anaerobic-Anoxic-Oxic)+high-density sedimentation tank+micro-filtration"was adopted to treat wastewater.The operation results showed that the average outfall concentrations of COD,ammonia nitrogen,total nitrogen and total phosphorus were 20mg/L,0.40mg/L,6.6mg/L and 0.15mg/L,respectively.The effluent quality can stably meet the Grade 1A standard of"Discharge Standard of Water Pollutants for Municipal Wastewater Treatment Plants"(GB 18918—2002),so it has good economic and environmental benefits.