某大型净水厂常规处理工艺改造设计

Design of Reconstruction of Conventional Treatment Process for a Large-Scale Water Treatment Plant

某大型水厂受原水水质波动影响,部分水质指标如氨氮和COD_(Mn)超标。另外,部分构筑物建设年代久远,设计标准不符合新的规范要求,因此有必要在不停产的前提下,对原有工艺、构筑物进行了改造。经改造后,目前出水连续多年稳定达到《生活饮用水卫生标准》(GB 5749—2006)与《饮用净水水质标准》(CJ94—2005)双标准,效果良好。

Some of water quality indexes such as NH3-N, C0DMn exceeded the limitations of the standard, due to the fluctuation of raw water quality in a large-scale water treatment plant. In addition, since some treatment constructions were built many years ago, they could not conform to the current standards. Therefore, it was necessary to reconstruct the original process and constructions of the WTP without suspending the production. After the reconstruction, water quality could meet the requirements of Standards for Drinking Water Quality （GB 5749-2006） and Water Quality Standards for Fine Drinking Water （CJ 94-2005）. The effect of the reconstruction was good.