Study of Biochar Modified Cathodes in the Treatment of Sulfamethoxazole in Water by Electro-Fenton
In order to reduce the toxicity caused by sulfonamide antibiotic sulfamethoxazole(SMZ)in water,to avoid the generation of multi-drug resistant bacteria in human body caused by antibiotic resistance genes,on the basis of the traditional electro-Fenton treatment technology,cyanobacterial biomass was prepared into biochar by activating pore-making agent and modifying the electro-Fenton cathode to improve the degradation of SMZ.The results showed that the catalytic performance of the electro-Fenton cathode was enhanced after the modification of the electro-Fenton cathode with the pore-forming agent,which increased the specific surface area and enlarged the pore structure of the biochar.When the degradation time was 240 min,the spacing between the cathode and anode plates was 0.5 cm,the pH value was 3,and the current density was 40 mA/cm2,the constructed electro-Fenton system was the most effective for the degradation of SMZ,and the removal rate was 92.13%.
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