光催化降解高浓度COD_(Cr)有机废水处理方法研究  

Study on Degradation of Organic Wastewater of High Concentration COD_(Cr) Using TiO_2 Photocatalytic Oxidation

作　　者：吴贤格[1] 黎达明 何承殷 曹慧娇[1] 钟胜[1] 陈庆林[1] 

机构地区：[1]肇庆学院化学化工学院,广东肇庆526061

出　　处：《广州化工》2017年第12期62-64,共3页GuangZhou Chemical Industry

摘　　要：研究了光催化氧化法处理高浓度COD_(Cr)的有机废水。分别研究了H_2O_2的浓度、pH、光照时间和TiO_2的浓度对光催化氧化法对处理高浓度COD_(Cr)的有机废水的处理效率影响,研究结果表明:当H_2O_2浓度为1.5 mmol/L、光照时间30 min和TiO_2浓度5 g/L的条件下,光催化氧化效果达到最好的效果,对松脂废水和印染废水经过TiO_2光催化氧化处理后COD_(Cr)去除率分别为46.7%、69.2%。从两种废水的GC/MS分析结果可知TiO_2光催化氧化法对结构复杂的有机物有较好的降解效果。The degradation of organic wastewater of high concentration CODcr using TiO2 photocatalytic oxidation was studied. Using the experience way to inspect the concentration of H2O2, pH, illumination time and the concentration of TiO2 was discussed in order to search the impact on degrading the high concentration CODcr organic wastewater. Meanwhile, the best projects of degrading the high concentration CODcr organic wastewater in this way were summarized. The experience result indicated that when the concentration of H2O2 was 1. 5 mmol/L, illumination time was 30min, the concentration of TiO2 was 5 g/L, photocatalytic oxidation reached the best affection. In the best affection, the removal rate of turpentine wastewater and printing and dyeing wastewater reached 46. 7% and 69.2% , respectively. From the GC/MS analysis result, a conclusion was drawn that TiO2 photocatalytic oxidation had a preferably degrade effect in complex organic matter.

关 键 词：二氧化钛 光催化氧化 有机污染物 

分 类 号：X703[环境科学与工程—环境工程]