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In recent years , PPCPs (Pharmaceutical and Personal Care Products) prevalent in the aquatic environment was found to have become very worrying , traditional sludge treatment technology , however , can not effectively remove this substance . Part of these contaminants remain in the activated sludge , and most directly through the secondary treatment system , with the water being emitted So it is urgent to find a viable technology to remove these substances . Optimization experiments of palladium -modified carbon nanotubes , palladium repair the optimal carbon nanotubes modified , and by SEM , XED and FTIR electrode characterization . , Compared to a modified carbon nanotube electrodes before and after the experiment . The discovery of carbon nanotubes modified electrode can be greatly improved catalytic activity . Experimental study modified multi-walled carbon nanotubes (MWCNTs) electrode two PPCPs ( diclofenac and triclosan ) electrochemical oxidation of aqueous phase . Examines the plate spacing , the electrolysis voltage , current density , ionic strength , pH value , the initial concentration and the electrolysis time on removal efficiency , and the reaction kinetics were discussed. Experimental results show that using modified carbon nanotube electrode electrolysis, diclofenac optimum conditions were: an initial concentration of 50 mg · L -1 , the electrolysis voltage of 15V ( current density of about 10mA · cm or -2 ) , the plate spacing 1cm, pH value of 10 , the the electrolyte Na2S04 concentration of 1000 mg L -1 . Under this condition, the reaction time was 2h when the the diclofenac removal rate can reach 80% or more , the degradation of the diclofenac as a reaction . Triclosan : Triclosan initial concentration of 50 mg · L- 1 , the electrolysis voltage of 15V ( current density of about 10 mA cm -2 ) , plate spacing 1cm, the pH value of 11 , electrolyte Na2SO4 concentration 1000mg · L-1. Under these conditions, the reaction time of 3h triclosan removal rate can reach 99% or more , the triclosan degradation zero order reaction .
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