Electrochemical treatment of dyeing the optimization of sewage
Abstract :In this paper,the electrochemical treatment of the dyeing wastewaters are investigated in detail of the way to reduce the COD,The different operating conditions of the treatment process were studied.Also,this paper compared the quality of the electrochemical treatment and the chemical treatment by adding the FeSO4 to the wastewaters,anlaysing the reality and compatibility of both method.The result are showed below:With the is 2020mA/cm2,t=4h,r=150min/min,the effort of the electrochemical treatment is in the best way,COD reduction is about 62.5%,the color turns from black to none.While adding is FeSO4 reached the peek date,the reducion is 43.75%.The color tunrs from black to green.
Keywords:electrochemical methods;dyeing water;degradation