以天然电气石为催化剂的电Fenton体系降解磺胺二甲基嘧啶的工艺研究  

MECHANISM AND TOXICITY ANALYSIS OF SULFAMETHAZINE DEGRADATION BY ELECTRO-FENTON SYSTEM USING NATURAL TOURMALINE AS THE CATALYST

作　　者：许志龙 于乃川 孙会杰 汪群慧 XU Zhilong;YU Naichuan;SUN Huijie;WANG Qunhui(Tianjin College,University of Science and Technology Beijing,Tianjin 301830,China)

机构地区：[1]北京科技大学天津学院,天津301830

出　　处：《环境工程》2023年第9期89-95,共7页Environmental Engineering

基　　金：天津市教委科研计划项目(2021KJ069)。

摘　　要：磺胺二甲基嘧啶(SMT)是一种抗菌效果较好的抗生素,被广泛用于人体和牲畜的疾病治疗中,在世界范围内已具有较大规模的应用。但由于其在动物体内不能被完全吸收,因此会随着粪便排出,污染自然界水体。以天然电气石作为催化剂构建了电Fenton反应体系,其过氧化氢(H_(2)O_(2))由阴极原位生成。探究了不同pH、SMT初始浓度、温度、电流密度、电气石投加量对SMT降解的影响。Sulfadimethymidine(SMT)is a kind of antibiotic with a good antibacterial effect,which is widely used in the treatment of human and livestock diseases globally.But because it cannot be completely absorbed in the animal body,it will be excreted with feces,and then pollute the natural water body.In this study,natural tourmaline was used as a catalyst to form an electro-Fenton reaction system.Hydrogen peroxide(H_(2)O_(2))was generated in situ by the cathode.In this paper,the effects of different pH,initial SMT concentration,temperature,current density,and tourmaline dosage on the degradation of SMT were investigated.

关 键 词：电气石 磺胺二甲基嘧啶 FENTON 降解 

分 类 号：X703[环境科学与工程—环境工程] TQ426[化学工程]