摘要
采用光催化法对造纸废水的处理进行了研究 .探讨了光催化反应机理 ,比较了光催化剂的活性顺序 ,讨论了复相光催化剂的组成、用量、试液 pH值、光照时间与COD、色度去除率的关系 .实验结果表明 :采用WO3/α Fe2 O3/W为复相光催化剂 ,其组成为WO3∶α Fe2 O3∶W =75∶2 4∶1 ,当其用量为 0 .50 0 g、pH =6 5、光照 2 2h ,造纸废水的COD和色度去除率分别达到 68 3 %和 71 2 %
Papermaking wastewater was treated by a photocatalytic oxidation process. Reaction mechanism of photocatalysis was probed. The active order of photocatalyst was compared. The effects of primary factors on the removal efficiencies of COD and colority were discussed. The experimental results indicate that the removal efficiencies of COD and colority in papermaking wastewater can reach 68.3% and 71.2% respectively by using WO 3/α Fe 2O 3/W as heterogeneous photocatalyst, with the composition of heterogeneous photocatalyst=75∶24∶1, quantity=0.500 g, pH= 6.5, illumination=22 h.
出处
《感光科学与光化学》
CSCD
北大核心
2001年第2期131-138,共8页
Photographic Science and Photochemistry
基金
安徽省教委自然科学基金资助项目 !(99JL0 1 62 )
