Efficient Graphite And PTFE Electrode Preparation And Degradation Of Phenol Wastewater Characteristics Research

Phenol is a kind of be included in the "blacklist" of pollutants in environmentalorganic pollutants, Phenol is a kind of organic pollutants included in the "blacklist" ofenvironmental pollutants is also a kind of volatile poisonous liquid, inhaled or eating tohuman life brings serious harm, When inhaled or eat, it will brings serious harm tohuman life not by the treatment of wastewater containing phenol any emissions,wastewater containing phenol without treatment will bring serious pollution to theenvironment. At present, dealing with refractory organic matter has become thedifficulty of industrial wastewater treatment, select the advanced oxidation technologyis becoming a hot spot of in dealing with refractory organic compounds, includingelectrochemical oxidation by,as electrochemical oxidation can be directly or indirectlyelectrochemical degradation of electrochemically degrading refractory organiccompounds, and for the advantages-with high oxidizing power, no secondary pollution,the advantages of convenient operation, is a kind of environmentally friendlytechnologies.This paper mainly uses homemade gas diffusion electrode as the cathode, stainlesssteel plate as the anode to carry out electrochemical techniques, including thepreparation of the electrodes,nvestigated the factors electrodes affecting theconcentration of H2O2produced, optimizing the electrolysis conditions that produceH2O2,simulate the degradation effect of phenol wastewater.(1) The preparation conditions of gas diffusion electrode, explores the content ofPTFE, pore-forming agent, rolling pressure and calcination temperature on the electrode performance impact.The preparation conditions of gas diffusion electrode, explores theimpact that the content of PTFE, pore-forming agent, rolling pressure and calcinationtemperature have on the electrode performance Results show that with a C?PTFE=2?1,C?NH4HCO3?Tm2O3quality ratio of6?1?1, the pressure that comes under thecondition of10MPa,330?, electrode producing H2O2have achieved good effect,make its it produce H2O2concentration of330mg/L.H2O2concentration reachedinto330mg/L;(2) Response Response to surface optimization method of Central CompositeDesign (CCD) for pH, current density, electrolyte concentration and the spacing spacebetween electrolytic conditions, such as surface optimization,to carry out surfaceoptimization, the results show that the effect sequence that every single factor has on theconcentration of H2O2production sequence is as follows: electrolyteconcentration>span> current density> pH.Eventually optimize the electrolyticoperating conditions as follows: the pH value of2.82, current density of8.33mA/cm2,electrolyte concentration of0.25mg/L, a distance of2.24cm, RSM to predict themaximum quantity of H2O2concentration of410.905mg/L;(3) Produced by is applied to the simulation of phenol wastewater, Applyproduced·OH to the simulation of phenol wastewater, exploring to explore the effectof·OH for the degradation of phenol wastewater, and the results are as follows: in thecondition of current density of9mA/cm2, polar distance is3cm condition, the initialconcentration of100mg/L of phenol wastewater degradation effect can reach to92%.And through the analysis of the spectra of phenol degradation, degradation of phenolwastewater treatment process, the degradation process is simple, without intermediateresidue.