UV/Fenton法深度处理含双氯芬酸和锌废水的工艺优化  

Optimization of UV/Fenton process for advanced treatment of wastewater containing diclofenac and Zn^(2+)

作　　者：王悦静 王月月 邓志伟 WANG Yuejing;WANG Yueyue;DENG Zhiwei(Yantai Ecological Environment Monitoring Center of Shandong Province,Yantai 264000,China;Environment School of Liaoning University,Shenyang 110036,China;Environmental and Chemical Engineering of Dalian University,Dalian 116622,China)

机构地区：[1]山东省烟台生态环境监测中心,烟台264000 [2]辽宁大学环境学院,沈阳110036 [3]大连大学环境与化学工程学院,大连116622

出　　处：《环境保护科学》2023年第5期100-105,共6页Environmental Protection Science

基　　金：辽宁大学大学生创新创业训练计划。

摘　　要：为研究含药物和重金属复合废水的处理方法,采用UV/Fenton工艺对经过生物处理后的含双氯芬酸(DCF)和Zn^(2+)废水进行处理,通过单因素实验法分析了H_(2)O_(2)浓度、Fe^(2+)浓度和反应时间对废水中COD、DCF和NH_(4)^(+)-N去除效果的影响。结果表明,随着H_(2)O_(2)浓度和Fe^(2+)浓度投加量的升高,COD和DCF的去除率呈先上升后下降的趋势,NH_(4)^(+)-N的去除率则趋于稳定。随着反应时间的增加,COD、DCF和NH_(4)^(+)-N除率均为先上升后趋于平衡。结合成本和效率考虑,得出最佳处理条件为:H_(2)O_(2)的最佳投加量为600 mg/L,Fe^(2+)的最佳投加量为45 mg/L,最佳反应时间应设置为90 min。In order to study the treatment method of composite wastewater containing drugs and heavy metals,the wastewater containing DCF and Zn^(2+)after biological treatment was treated by UV/Fenton process.The effects of H_(2)O_(2)concentration,Fe^(2+)concentration and reaction time on the removal of COD,DCF and-N in the wastewater were analyzed by a single factor experiment method.The results showed that with the increase of H_(2)O_(2)concentration and Fe^(2+)concentration,the removal rates of COD and DCF increased firstly and then decreased,while the removal rate of-N tended to be stable.With the increase of reaction time,the removal rates of COD,DCF and-N increased firstly and then tended to its equilibrium.Considering the cost and efficiency,the optimal treatment conditions were obtained as follows:the optimal dosage of H_(2)O_(2)was 600 mg/L,the optimal dosage of Fe^(2+)was 45 mg/L,and the optimal reaction time was 90 min.

关 键 词：UV/FENTON 双氯芬酸 Zn^(2+) H_(2)O_(2)浓度 Fe^(2+)浓度 

分 类 号：X703[环境科学与工程—环境工程]