复合工艺在城市污水处理厂改造中的应用

Application of Hybrid Biological Treatment System in Wastewater Treatment Plants' Reconstruction

水污染控制的主要任务是有机物的降解和氮磷的去除。我国现有污水处理厂大多采用传统活性污泥法 ,对于氮、磷的去除往往不能达到新实施的《城镇污水处理厂污染物排放标准 (GB18918- 2 0 0 2 )》的要求。而生物膜、活性污泥复合工艺为我国城市污水处理厂的扩建和改造提供了一条经济、高效的途径。

The aim of wastewater control engineering is organic degradation,nitrogen and phosphorus removal.But many wastewater treatment plants use activated sludge process,which has limited capability of nitrogen and phosphorus removal rate.Hybrid biological treatment system is an economical and efficient choice for WTPs' reconstruction.