电镀是金属(或非金属)的表面处理工艺,是通过化学或电化学作用在金属(或非金属)制件表面另一种金属膜层,从而改变制件表面属性的一种加工工艺。电镀废水一般分为四类即:①混合废水,②含氰化物,③含铬废水,④其他重金属废水。电镀废水的处理方法分为:1.化学沉淀法、2.氧化还原法、3.溶剂萃取分离法、4.吸附法、5.膜分离技术法、6.离子交换处理法、7.生物处理法等。
Electroplating is a metal (or non-metal) surface treatment technology,by chemical or electrochemical action in metal (or non-metal) another kind of metal film surface layer,to change the surface properties of a kind of processing technology.Electroplating wastewater generally fall into four categories: (1) mixing wastewater, (2) containing cyanide, (3) wastewater containing chromium, (4)and other heavy metal waste water.Electroplating wastewater treatment methods are divided into: 1. The chemical precipitation, (2) REDOX process, (3) solvent extraction separation, 4. Adsorption, 5. Membrane separation technology, 6. Ion exchange process, 7. Biological treatment method, etc.