微电解-Fenton法处理拉米夫定废水试验研究  

Treatment of Refractory Lamivudine Wastewater by Micro-Electrolysis and Fenton Oxidation Process

作　　者：郭建[1] 孙力平[1] 吕建波[1] 李志伟[1] 王元月[1] 

机构地区：[1]天津城市建设学院环境与市政工程系天津市水质科学与技术重点实验室水质科学与技术联合实验室,天津300384

出　　处：《环境科技》2010年第4期1-4,共4页Environmental Science and Technology

基　　金：国家自然科学基金资助项目(50808128)

摘　　要：分别采用微电解-Fenton氧化串联工艺和H2O2强化微电解工艺预处理难降解拉米夫定工业废水,通过对有机物、色度去除率的优选和反应过程中Fe2+浓度变化的分析,确定了最佳工艺及工艺运行方式。结果表明,微电解-Fenton氧化串联工艺宜采用微电解阶段后调节pH值的运行方式,与不调节pH值的运行方式相比,CODCr去除率提高了6.85%;H2O2强化微电解工艺,反应100min时,CODCr去除率为71.71%,色度去除率为98.15%,与微电解-Fenton氧化串联工艺相比反应时间短,投加药剂费用少,不需另设专门Fenton反应设备。通过废水处理前后的UV/Vis吸收光谱图比较,表明2种工艺对拉米夫定废水具有较理想的处理效果但最终降解产物不同。Pretreatment of refractory Lamivudine wastewater by micro-electrolysis and Fenton oxidation tandem process and hydrogen peroxide strengthened micro-electrolysis process was studied.Optimal process and operating mode were obtained by changing experimental conditions which could increase the organic and chromaticity removal rate and analysis of Fe2＋ concentration.The results show that micro-electrolysis and Fenton oxidation tandem process should adjust pH value after micro electrolysis stage,it increases 6.85% of CODCr compared to without adjust pH value.Hydrogen peroxide strengthened micro-electrolysis process,it removes 71.71% of CODCr and 98.15% of chromaticity after reaction 100 min.Reaction time can be shorted compared to micro-electrolysis and Fenton oxidation tandem process,and need not a separate Fenton reactor,without adding Fe2＋ and acid for Fenton reaction.Comparison of UV/Vis absorption spectrum before and after treatment shows that decomposition effects of micro-electrolysis-Fenton process on Lamivudine wastewater are satisfactory and final degradation products are different.

关 键 词：拉米夫定废水 预处理 微电解 FENTON氧化 运行方式 

分 类 号：X7[环境科学与工程—环境工程]