Fe^(2+)-PAM复合絮凝剂处理电镀废水中Cr^(6+)的应用研究

THE RESEARCH ON THE APPLICATION OF Fe^(2+)-PAM COMPOUND FLOCCULANT IN THE DISPOSE OF Cr^(6+) IN ELECTROPLATING WASTEWATER

研究了 Fe2 + — PAM复合絮凝剂对电镀废水中 Cr6+ 的絮凝效果、性能和机理。确定了最佳 p H=1 1 ,最佳投药量 n( Fe2 + ) / n( Cr6+ ) =4.5,c( PAM) =5mg/ L。用此法处理电镀废水中 Cr6+ 工艺简单、效果明显。

This essay aims to research the flocculation effect,performance and mechanism of Fe 2+-PAM compound flocculant in the dispose of Cr 6+ in electroplating wastewater .Through the check experiments of the concentration of Cr 6+ in electroplating wastewater, the research decides on the proper pH=11, and the most suitable quantity of medication n(Fe 2+)/n(Cr 6+)=4.5, c(PAM)=5mg/L. This method has the advantages of simple process and convenient operation. In addition, the disposed water meets the assigned standard of the state.