Of Line Cutting The Oily Waste Emulsion Approach For Further Research

Waste liquid from line-cutting emulsion oil is a kind of highly steady liquid containing oil, high value of COD_Cr(chemical oxygen demand content), high concentration of contaminants and complex composition. To solve the problem of these waste liquid's discard in small mills which were dispersive and pint-sized in the remote areas,a appropriate method is urgently required. To low COD_Cr value and the oil content,achieve the aim that the treated wastewater could meet the requirement of national discharge standard, the existing technics were predigested and optimized in this paper. In the preliminary stage,the four-stage treatment method of microelectrolysis flocculation microelectrolysis flocculation process was repeated, validated,analysed and summarized, and then the first stage of the treatment method was omitted, and the influence factors were predigested and optimized again. Moreover,in the micro-electrolysis process,the influence of the value of pH and the reaction time on the micro-electrolysis process were researched. The possibility of the raw material's reclaim and recycle were discussed. Finally,the treated wastewater were characterized by the measure of Zeta potential and conductance on each best condition. After treatment,the waste liquid's COD_Cr value and the oil content were reduced to 650mg/L and 31mg/L from 59000mg/L and 11340mg/L respectively,and the removal rates arrived at the percent of 98.89 and 99.73. And the effect of treating waste liquid by the three-stage treatment method was better than better than that by four-stage treatment method. The result showed that the three-stage treatment by improving and optimizing previous four-stage method could predigest manipulation,save the cost, and was a simple treatment method. So it was of high value of application.