【摘要】 在充分分析单级SBR工艺在生物除磷脱氮过程中存在的不足的基础上 ,提出了两种两级SBR串联运行的除磷脱氮工艺模式。通过合理控制操作过程 ,该工艺可望从根本上解决单级生物除磷脱氮系统中的泥龄问题、厌氧区的硝酸盐问题、有机物对硝化作用的抑制问题和好氧时间长能耗较高的问题等 ,从而可大大提高系统除磷脱氮效果和稳定性。模式 1工艺适用于处理BOD/TP值较高的污水 ;模式 2工艺对进水BOD/TP值没有特殊的限制。更多还原

【Abstract】 Two tandem systems of two-stage SBR process were proposed for P and N removal to improve the single stage SBR.By proper control in operation the common troubles in single SBR such as the sludge aging,nitrate holding up at anaerobic zone,inhibition of nitrification by organic substances and high energy expenses caused by excess aeration time are solved.So the tandem system works stably with high P and N removal.Two schemes are suggested:Model 1 is suitable for wastewater with high BOD/TP ration and for Model 2 not any limitation is requested to BOD/TP ratio.更多还原