生物炭修饰阴极在电芬顿法处理水中磺胺甲恶唑的研究
Study of Biochar Modified Cathodes in the Treatment of Sulfamethoxazole in Water by Electro-Fenton
韩颖 1龚志豪2
作者信息
- 1. 维尔利环保科技集团股份有限公司,江苏 常州 213125;江南大学环境与生态学院,江苏 无锡 214122
- 2. 江南大学环境与生态学院,江苏 无锡 214122
- 折叠
摘要
为减少水中磺胺类抗生素磺胺甲恶唑(SMZ)带来的毒性,避免抗生素抗性基因导致的人体多重耐药菌的产生,在传统电芬顿处理技术的基础上,采用活化造孔剂将蓝藻生物质制备成生物炭,并修饰电芬顿阴极,提高其对SMZ的降解效果.研究结果表明,电芬顿阴极经造孔剂修饰后,增加了生物炭的比表面积和扩大了孔隙结构,其催化性能得到提升.当降解时长为 240 min,阴、阳极板间距为 0.5 cm,pH值为 3,电流密度为 40 mA/cm2 时,所构建的电芬顿体系对于SMZ的降解效果最佳,去除率为 92.13%.
Abstract
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%.
关键词
电芬顿/蓝藻生物炭/阴极修饰/磺胺甲恶唑Key words
Electro-Fenton/Cyanobacterial biochar/Cathodic modification/Sulfamethoxazole引用本文复制引用
基金项目
江苏省碳达峰碳中和科技专项(BE2022426)
出版年
2024
NETL
NSTL
万方数据