纳米TiO_2光催化氧化法处理含蜡油循环水的研究  

Study of photocatalytic oxidation of wax oil in circulating-water by nanoscale TiO_2

作　　者：张雨春[1] 郦和生[2] 徐瑞芬[1] 张鹏[1] 

机构地区：[1]北京化工大学,北京100029 [2]中国石化北京燕山分公司研究院,北京102500

出　　处：《现代化工》2007年第S2期215-217,共3页Modern Chemical Industry

摘　　要：采用纳米TiO2粉体为光催化剂处理含蜡油循环水,考察了不同光源、粉体用量、pH、蜡油浓度、处理时间、曝气、Ca2+及Fe3+等因素对蜡油去除率的影响。结果表明:当TiO2质量浓度为1 g/L、连续曝气的条件下,经高压汞灯的照射6 h,蜡油(100mg/L)的去除率达96.8%。The treatment of circulating-water with wax oil by photocatalytic oxidation used nano-TiO2 powder as catalyst is introduced.The influence factors such as different light sources,TiO2 powder dosage,initial value of pH,concentration of wax oil,reaction time,aeration,Ca2+ and Fe3+,are studied respectively.The result indicates that the removal rate of wax oil could reach 96.8% under the conditions:the initial wax oil concentration of 100 mg/L,TiO2 dosage of 1 g/L,pH=1,Fe3+ concentration of 0.25 mg/L,continuous aeration,and irradiating by mercury blended lamp for 6 h.

关 键 词：纳米TiO2 光催化氧化 蜡油 循环水 

分 类 号：TQ085[化学工程]