黄石城市饮用水应急处理技术研究——以花马湖水源为例

对花马湖水质进行调查分析测定,并通过室内模拟的方法,研究当紧急情况发生时,将花马湖水应急处理为饮用水的技术。研究表明,采用混凝-沉淀-过滤-消毒工艺,最佳的混凝剂是聚合氯化铝,其最佳投加量为1 L水中投加70 mg,控制pH值为4.5～5.5,确定用漂白粉消毒时,漂白粉的最佳投加量为每1 L水中投加21 mg。经此工艺应急处理的水完全达到《生活饮用水卫生标准》(GB5749—2006),且处理工艺简单,成本低廉。为《黄石市应急水源工程的可行性研究》提供基础理论研究依据,为花马湖水应急处理为饮用水的工程提供参考。

Research on Emergency Treatment Technology of Urban Drinking Water——Taking Huama Lake As An Example

Based on the analysis and measuration of the water quality of Huama Lake,this paper introduces what treatment technology can adopt to change Huama Lake water into drinking water when emergency occurs by the method of indoor simulation.The experiment indicates that the treatment schedule is flocculation-sedimentation-filtration-disinfection,and the optimal coagulant is polyaluminium chloride(PAC) and the optimum dosage of PAC is 70 mg in 1 L water,PH control ranges from 4.5～5.5.When the disinfection is done by bleaching powder,the optimum dosage is 21 mg in every 1 L water.After treated with the emergency technology,the water completely accords with the National Hygienic Standard for Drinking Water(GB5749-2006).This experiment is to provide a basic theoretical evidence for the Report Of Feasibility Research Of Huangshi City Emergency Drinking Water Project and to afford reference for the emergency water treatment engineering of Huama lake.