石灰混凝法处理重金属废水的实验研究

Study on treatment of heavy metal ions wastewater by lime-flocculation

通过实验研究了石灰混凝法处理含重金属废水。结果表明：pH在8．5—9．5范围内，沉淀剂投量超过理论计算值的15％-20％，混凝剂FeCl3投量为9．0～10．5mg／L，搅拌转速在100-120r／min范围内，达到最佳条件。

An study of treating heavy metal ions wastewater by lime - floeculation has been carried on. The results show that maintainning pH from 8.5 to 9.5, stir speed from 100 r/min to 120 r/min and keeping up the quantity of floceulafion from 9.0 mg/L to 10.5 mg/L can improve the rate of removal heavy mental ions.