非均相Fenton法处理孔雀石绿  

Removal of the Malachite Green by Heterogeneous Fenton System

作　　者：陈维雨思 张宇峰[1] 梁柱[1] 田学鹏 刘仁彬 Chen Weiyusi Zhang Yufeng Liang Zhu Tian Xuepeng I.iu Renbin(Nanjing Tech University, Jiangsu, Nanjing, 211800, China)

机构地区：[1]南京工业大学,江苏南京211800

出　　处：《绿色科技》2017年第20期126-128,131,共4页Journal of Green Science and Technology

摘　　要：使用非均相Fenton体系处理孔雀石绿废水,考察了溶液pH值、双氧水投加量、反应温度和Fe3O4微球催化剂投加量这4个因素对非均相Fenton体系降解孔雀石绿废水效率的影响。根据单因素实验的结果设计并进行了正交实验,探究了非均相Fenton体系降解孔雀石绿废水的最佳工艺参数,以及各单因素对降解效果的影响程度。实验结果表明:在pH值=2、反应温度40℃、H2O2投加量0.7mL、Fe3O4投加量0.4g的条件下,孔雀石绿降解率最高达到95.53%;各单因素对降解率的影响程度依次为:Fe3O4投加量>H2O2投加量>反应温度>pH值。最后通过重复性实验研究Fe3O4催化剂的可回收利用性,实验结果说明:该催化剂回收性能良好,在使用4次以后,降解率仍能达到72.27%。In this paper, the heterogeneous Fenton system was used to degrade malachite green. The heterogeneous Fenton system was used to study the effects of different pH, H2O2 dosage, reaction temperature and Fe3O4 on the heterogeneous Fenton system. According to the results of single factor experiment, orthogonal experiments were conducted to investigate the optimum technological parameters for degradation of malachite green wastewater by heterogeneous Fenton system and the influence of each single factor on degradation. The experimental results showed that when pH value is at 2, reaction temperature is 40℃ and H2O2 dosage is 0.7mL. The results showed that the degradation rate of malachite was 95.53% and the effect of single factor on the degradation rate was from the order： Fe3O4 dosage〉 H2O2 dosage〉 reaction temperature〉 pH value.The experimental results showed that the degradation rate can reach 72.27% after four times with good recovery of the catalyst.

关 键 词：非均相FENTON 孔雀石绿 Fe3O4催化剂 

分 类 号：X703[环境科学与工程—环境工程]