夏季高峰供水期水厂出厂水质指标铝的控制

Control of Aluminum Concentration in Effluent Water Quality Items of WTP during Water Supply Peak Period in Summer

通过分析高峰供水期间W1、W2水厂原水水质(pH、温度、浊度、总碱度、溶解氧、菌落总数、COD)及运行参数(混凝剂加注量、出水pH)对出厂水铝指标控制的影响,为日后高峰优质供水提供建议。从数据分析结果来看,实际运行中pH、温度、浊度是出厂水铝控制的表征数据,即pH值、温度与出厂水铝的质量浓度成正比,浊度与出厂水铝的质量浓度成反比;而混凝剂中有效铝含量、总碱度、溶解氧、菌落总数、COD的变化对出厂水铝的浓度的影响并不显著。

Aiming to advise the future operation during water supply peak period in summer,impact of raw water quality(pH value,temperature,turbidity,total alkalinity,dissolved oxygen,totalplate count and COD)and operation parameters(coagulant injection and effluent pH value)on Al concentration in effluent was analyzed.The results indicated that the Al concentrations were in proportion to water pH value and temperature,and inversely proportional toturbidity.However,Al concentration of coagulant dosage,total alkalinity,dissolved oxygen,total plate count and oxygen comsuption of raw water had no influence on aluminum concentration significantly.