摘要
选取诺氟沙星为目标污染物,以介孔氧化铁为催化剂,催化过氧化氢降解水中微量有机污染物,设计正交实验并利用SPSS软件进行数据分析,分别讨论了pH、H_2O_2初始浓度、诺氟沙星初始浓度以及催化剂投加量对降解率的影响,并得到选定因素水平范围内的最优化反应条件:初始p H为7,初始H_2O_2浓度100 m M,初始诺氟沙星浓度2 mg/L,催化剂投加量0.7 g/L。最优化反应条件下,120 min诺氟沙星的降解率达到99%。通过SPPS方差分析可得,各因素影响大小的排序为诺氟沙星初始浓度>催化剂投加量>初始pH>初始H_2O_2浓度。
Catalytic degradation process of trace organic pollutants was studied while norfloxacin was selected as the target contaminant and mesoporous iron oxide as the catalyst. Orthogonal experimental design and data analysis by SPSS software were applied to discuss the influences of pH,initial H2O2 concentration,initial norfloxacin concentration and dosage of catalyst,and the optimal reaction conditions had obtained within the selected range. The optimal reaction conditions were as follows： initial pH was 7,concentration of H2O2 was 100 m M,concentration of NOR was 2 mg / L,dosage of catalyst was 0. 7 g / L. Degradation of NOR on meso- Fe2O3 in H2O2system was 99% within 120 min. The influence sequence was concentration of NOR dosage of meso- Fe2O3 〉initial pH 〉concentration of H2O2 analyzed by SPSS variance analysis.
出处
《四川环境》
2016年第2期20-27,共8页
Sichuan Environment
基金
国家自然科学基金(51478322
51278351)
"十二五"国家水污染控制(2014ZX07405-003)
同济大学中央高校基本科研业务费专项资金
关键词
介孔材料
诺氟沙星
正交实验
有机物降解
Mesoporous materials
norfloxacin
orthogonal experiment
organic matter degradtion
