TiO_2光催化剂处理制浆造纸废水  

Treatment of Wastewater from Papermaking by Titania Dioxide Photocatalyst

作　　者：石中亮[1] 华丽[1] 姚淑华[1] 

机构地区：[1]沈阳化工学院应用化学系,辽宁沈阳110142

出　　处：《纸和造纸》2007年第3期57-59,共3页Paper and Paper Making

基　　金：辽宁省教育厅基金资助项目(20040284);沈阳化工学院博士启动基金资助项目(20063202)。

摘　　要：以TiO2为催化剂,用光催化氧化法处理制浆造纸废水,讨论了不同实验条件如焙烧温度、焙烧时间、催化剂用量、H2O2用量、光照时间及废水pH值等对废水COD去除率的影响。结果表明:在焙烧温度为500℃,焙烧时间2h,pH7-8,TiO2用量2.0g·L-1,H2O2量(体积分数)0.6%,光照时间4h的条件下,废水COD的去除率可达90%。A new method on treating wastewater of papermaking by means of photo-catalyzed oxidation TiO2 as the catalyst was introduced in this paper. To improve the influence of such experimental parameters as roasted temperature, roasted time, the amounts of catalyst and H2O2, radiant time and pH value, it was studied that the COD removal rate together with the optimum conditions such as the roasted temperature of TiO2 at 500℃, roasted time at 2h, the amount of TiO2 at 2.0g·L^-1 and H2O2 concentration at 0.6%（V/V）, the initial pH value at 7.0-8.0, radiant time at 4h. The results showed that the COD removal rate of wastewater can reach 90% under the above conditions.

关 键 词：TIO2 光催化剂 造纸废水 废水处理 COD去除率 

分 类 号：X793[环境科学与工程—环境工程]