Fenton法降解抗生素磺胺间甲氧嘧啶钠  

Degradation of sulfamonomethoxine sodium in aqueous solution by Fenton

作　　者：冯精兰[1] 师少辉[1] 孙剑辉[1] 

机构地区：[1]河南师范大学化学与环境科学学院,黄淮水环境与污染控制省部共建教育部重点实验室,河南省环境污染控制重点实验室,新乡453007

出　　处：《环境工程学报》2012年第9期3125-3130,共6页Chinese Journal of Environmental Engineering

基　　金：河南省创新型科技人才队伍建设工程项目;河南省重点科技攻关项目(102102310244);河南省基础与前沿技术研究项目(102300410098)

摘　　要：应用Fenton高级氧化技术降解水溶液中抗生素磺胺间甲氧嘧啶钠(SMMS),系统探讨了起始pH、CSMMS、CFe2+、CH2O2和温度等因素对SMMS降解效果的影响。结果表明:CSMMS=4.53 mg/L,pH=4.0,CH2O2=0.49 mmol/L,CFe2+=19.51μmol/L,T=25℃为最佳反应条件。在最佳条件下,87.4%的SMMS可以在120 min内降解。反应动力学研究表明Fenton氧化降解SMMS分为两个阶段,快速反应阶段和慢速反应阶段,并建立了两阶段动力学模型,模型拟合结果较好。研究结果为含有SMMS的污废水处理提供了基础数据和科学参考。Fenton oxidation was applied to degradate sulfamonomethoxine sodium（SMMS） in aqueous solution.The operation parameters of pH,temperature,and concentrations of H2O2,Fe2＋ and SMMS were investigated.The optimum conditions for Fenton processes were determined as follows： CSMMS=4.53 mg/L,pH=4.0,CH2O2=0.49 mmol/L,CFe2＋=19.51 μmol/L and T=25℃.Under these conditions 87.4% of the SMMS were degradated.The kinetics was also studied,and degradation of SMMS by the Fenton process was found to be a two-stage process,in which fast degradation followed by stagnant degradation.Based on experimental data,a two stage kinetic model was established and the model matched experimental data very well.This process could be used as a pretreatment method for wastewater containing sulfamonomethoxine sodium.

关 键 词：高级氧化技术 药品和个人护理品 FENTON 磺胺间甲氧嘧啶钠 

分 类 号：X703.1[环境科学与工程—环境工程]