Iron Micro-electrolysis Pretreatment Of Industrial Wastewater

As the industrial production ever-developing that industrial wastewater ever-increasing, the all kinds of the industrial wastewater have already been becoming main pollution source that effect ecology environment. Because component of the pollution in the wastewater are not same, the method and extent of the treatment are not same. The iron chipping microelectrolysis processing industrial wastewater is a kind of the application technology of the "using waste treat waste". It has already been used treatment of the wastewater of the dyeing petroleum chemical industry electroplating printing electric circuit plate produce and contain arsenic etc.. This article for three parts on treatment brewing> electrolytic mangan and contain vanadium wastewater were studied. In the first past is treatment of the brewing wastewater. It is a kind of the high concentration of the organics wastewater, the value of CODcr is about 1.5xl04mg/L.The color is black. The main pollution are saccharid alcohol vitamin and tannic acid, pH=4-5. In the second past is wastewater of the ViOs production. Jishou zone produce "V^Os to use bone coal mineral as material, which was produced by blank calcinations process. A lot of the acid contain vanadium wastewater was produced in the course of the production. The main pollution were V5+ and Cd2+. As V5+ and Cd2+ high toxin that environment was pollution serious. In the third past is wastewater that was produced in electrolytic mangan course as pretreatment of the mineraL confect of the electrolytic solution and washing of the polar plate etc.. As Cr6^" and Mn2+ serious exceed standard that environment pollution. A lot of reference literature were proved, brewing and abattoir wastewater were processed with the method of the biochemistry now. This kind of the method manage difficult, cost is expensive. Semlt vanadium and electrolytic mangan plant wastewater use ion-exchange and chemistry precipitation methods treatment, the production investment of ion-exchange method was larger and running cost of the chemistry precipitation method was higher and purgation ratio was lower. The orgnics and inorganics pollution were decomposed through electrochemistry reaction with the iron chipping microelectrolysis treatment these wastewater hi the article. As the same time, other treatment method are combined, thereby make pollution were purged. Now brewind and electrolytic mangan wastewater are running in the plate production. The results shown that the method treatment effect was higher, the purgation ratio of CODcr was about 98%. As the waste iron chipping of the machining was used as the material which has character of the "using waste treat waste" , is a kind of the treatment technology of the easy management, using range wide purgation ratiohigh and treatment cost low, so there is more high than in application worth.