Degradation of nitrobenzene wastewater by copper-loaded iron-carbon micro-electrolysis ceramic pellets
The effects of copper ion concentration,current density and plating time on the morphology of plated layer and the plating rate were investigated by plating method.Charac-terization of copper-loaded sludge carbon was conducted through SEM-EDS,XRD,CV test methods.The ternary micro-electrolysis ceramic pellets were further prepared to investigate the effect of different copper addition methods on the performance of ceramic pellets.The results showed that the plated layer was uniform and dense when the copper ion concentra-tion was 0.15 mol/L and the current density was 12.5 mA/cm2.The ternary micro-electrol-ysis ceramic pellets prepared by copper electroplating mixing has better degradation effect on nitrobenzene wastewater.When the solution pH is 3,the concentration of nitrobenzene is 100 mg/L and the reaction time is 180 min,the removal rate of nitrobenzene by the filler is 90.61%,and the degradation of nitrobenzene was in accordance with the pseudo primary ki-netic reaction,with a reaction rate constant of 0.010 58 min-1.
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