Effect of Electrode Materials on the Treatment of Pharmaceutical Wastewater by Three-dimensional Electrode-electrical Fenton
The effect of electrode materials on COD removal rate from pharmaceutical wastewater by three-dimensional electrode-electrical Fenton and the optimal process conditions were studied.Simulated azithromycin pharmaceutical wastewater taken as the raw water,the effect of anode materials,activated carbon particle type,and concentration on the COD removal effect from simulated wastewater under the same control conditions was analyzed,and the optimal process conditions were determined.Results showed that based on the comprehensive cost,in the process system graphite taken as the cathode material,titanium-coated ruthenium-iridium as the anode material,and the 3 mm particle size of activated carbon with a dosage of 100 g/L the treatment effect was best with removal of COD reached 77.39％and the biochemistry increased from 0.072 to 0.353.The anode material,particle size of the particle electrode,and concentration had great influence on the degradation effect of the three-dimensional electrode-electric Fenton system for treating pharmaceutical wastewater;the results of the study can meet the requirements of subsequent biological treatment.
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