TiO_2光催化降解焦化废水的研究

Study of Degradation of Charring Waste Water by TiO_2 Photocatalyst

焦化废水成分复杂、多变 ,对环境有较大危害 ,是一种很难处理的工业废水 ,已经引起了国内外学者广泛关注 .文中选用TiO2 作为光催化剂 ,光催化降解焦化废水 ,结果表明 ,TiO2 对焦化废水具有显著的光催化降解作用 .通过实验 ,考察了焙烧温度、光照时间、溶液初始pH值、初始溶液浓度及投加氧化剂等因素对苯酚去除效率的影响 ,从而确定处理的最佳处理条件 .最后 。

The constituents of charring waste water are very complicated, which is greatly harmful to the environment and is difficult to deal with. Many researchers have paid an attention to this pollutant. By using TiO 2 as the photocatalyst to treat carbolic acid bearing waste water, it turns out that TiO 2 can treat the charring waste water. Through experiments, the removal efficiencies under different conditions, such as baked temperature, time of light, pH, concentration and oxidant are studied. At last the best conditions of the treatment are ensured. The main developing direction of the technology is pointed out.