活性染料废水的混凝脱色方法研究

Study of decolorization of active dyeing Waste Water

研究了聚合氯化铝 (PAC)、聚合硫酸铁 (PFS)、聚合硫酸铝铁 (PAFS) 3种无机混凝剂处理活性印染废水的工艺条件及其脱色效果 ,发现这 3种混凝剂对印染废水的处理具有相似的效果。并将聚丙烯酰胺 (PAM)分别与这 3种混凝剂联用处理废水 ,结果表明PAM可提高污泥的沉降速度 ,从而提高污水的处理效率。

The optimal conditions and decolorizing rate for three coagulants to treat active dyeing wastewater are investigated in this paper.The three inorganic coagulants are PAC,PFS and PAFS respectively.It is found that the effect is similar for the three coagulants to treat active dyeing wastewater. PAM and the three coagulants are applied to treat wastewater together.The result shows that PAM can improve the settling speed of sludge,So the treating efficiency of wastewater is increased.