The Study Of Degradation Of Organic Dyes By Eddy Cavitation

In this paper,respectively,through the vortex cavitation of Reactive Brilliant K-2BP-Hydrogen Peroxide（SC-H₂O₂）and eddy cavitation-Fenton（SC-Fenton）degradation study the vortex cavitation-chemical oxidation degradation Cooperative the degradation mechanism of organic pollutants in water and degradation kinetics.Factors affecting the vortex forming simulation using CFX software analysis:eddy warehouse slit widths,lengths of 0.2mm and 100mm,the inner diameter of the vortex positions 10mm,35mm outlet plate distance condition,the most significant effect eddy eddy current is generated in the warehouse the vapor pressure is lower than the standard area of maximum,ie cavitation largest。The effects of SC-H₂O₂ degradation as azo dye red K-2BP results showed that SC-H₂O₂ can effectively degrade reactive brilliant red K-2BP,first-order kinetics.Reactive Brilliant Red K-2BP degradation rate as the initial pH value decreases and increases,with the reactive brilliant red K-2BP its initial concentration decreased;H₂O₂ amount increased or elevated operating pressure,reactive brilliant red K-2BPdegradation rate also increased。In this paper Reactive Brilliant K-2BP and acidic magenta dye to simulate organic pollutants,the use of eddy cavitation-Fenton synergistic oxidative degradation of organic dyes,to study the concentration of H₂O₂,Fe²⁺concentration,initial pH value,operating pressure and the initial concentration of organic dyes and other factors on the degradation of organic dyes,and cavitation vortex dynamics Fenton degradation of organic dye reagents strengthening studied.Treatment using SC-Fenton optimum conditions Reactive Brilliant Red K-2BP is:H₂O₂ and Fe²⁺concentration ratio of 4:1,and the solution pH4.0,when the vortex pressure0.8MPa,after 70min reaction,the degradation rate up 91.81 percent,compared alone when Fenton degradation rate of 26.97%.Using SC-Fenton treatment of acid magenta optimal experimental conditions:the concentration of H₂O₂ and Fe²⁺ratio of about 5:1,the solution pH4.0,when the vortex pressure 0.8MPa,after 70min reaction,the degradation rate of up to 98.15%,more than when used alone Fenton degradation rate increased by23.76%.It was found that:lowering the pH value of the reaction solution will help improve the degradation rate;the greater the pressure,the higher the rate of degradation;the lower the initial concentration of the organic dye,the higher the degradation rate,but the total amount of degradation or degraded when high concentrations;kinetics experiments conform level.By analyzing the results,vortex cavitation-Fenton degradation of organic dyes·OH result of the role,Fenton adds the ability to increase the concentration of·OH radicals,oxidative degradation of reactive brilliant red K-2BP,acidic magenta other organic dyes,to further improve the degradation rate of organic dyes.