SBR工艺运行方式对污染物去除效果的试验研究

SBR法以其运行方式灵活的特点可以实现对不同污染物去除的控制,试验基于此特点,通过改变SBR工艺的运行方式,考察不同运行条件下CODCr、NH3-N、TP的去除率,从中确定最佳运行参数。在进水搅拌45min,进气量0.5 m3/h,曝气5 h,停曝搅拌75 min,沉淀75 min的最佳运行参数下,稳定运行8个周期,进水CODCr、NH3-N、TP的平均质量浓度分别为353.8、33.70、0.714 mg/L时,出水CODCr、NH3-N、TP的平均质量浓度分别达到30.26、9.322、0.458 mg/L。均能达到生活杂用水标准。

Research on removal effects of pollutants by different operation modes of SBR process

As SBR process has characteristic of flexible operation modes, it can be used to remove different kinds of pollutants. Based on this characteristic, the removal rates of CODer, NH3-N, TP under different operation conditions were investigated through changing operation modes of SBR process, meanwhile, the optimal operation parameters were determined. When the average mass concentration of CODcr, NH3-N, TP in influent water were 353.8, 33.70, 0.714 mg/L respectively, under the optimal operation parameters that the inlet agitation time was 45 rain, the input air quantity was 0.5 m^3/h, the areation time was 5 h, the agitation time after areation was 75 rain, the sedimentation time was 75 rain, after 8 cycles of stable operation, the average mass concentration of CODcr, NH3-N, TP in effluent water reached 30.26, 9.322, 0.458 mg/L respectively, which met the standard for urban miscellaneous water consumption.