TiO_2光催化降解焦化废水的研究.PDFVIP

28 ( ) Vol. 28 No 2003 8 Journal of Kunming University of Science and Technology (Science and Technology) Aug. 2003 TiO 2 1 2 徐长城, 高 原 ( 1. , 650093; 2. , 6500 1) : 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 了国 内外学者广泛关注. 文中选用TiO 作为光催化剂, 光催化降解焦化废水, 结果表明, TiO 对焦化 2 2 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, 还 指出了该技术所需要研究的主要技术方向. : 污水处理; 光催化; TiO ; 焦化废水 2 :X506 :A : 1007- 855X( 2003) 0 - 0109- 0 Study of Degradation of Charring Waste Water by TiO Photocatalyst 2 1 2 X U Changc heng , GAO Y uan ( 1. Faculty of Environmental Science and EngineeringKunming University of Science and Technology , Kunming 650093, China; 2. Bureau of environment and sanitation in Panlong Distrit, Kunming 6500 1, China) Abstract: The constituents of charring waste w ater are very complicated, which is greatly harmful to the environ ment and is difficult to deal w ith. Many researchers have paid an attention to this pollutant. By using TiO2 as the photocatalyst to treat carbolic acid bearing w aste water, it turns out that TiO can treat the charring waste water. 2 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. Key words: w aste water treatment; pho