TiO_2光催化氧化天然有机物

Degradation of Natural Organic Compounds by TiO_2 Photocatalytic Oxidation

探讨了光催化氧化技术对水体中有机物的去除。通过单因素法考察了有机物去除率随时间的变化情况;通过正交试验确定最佳因素组合为:催化剂粒径46 nm,加药量0.5 g/L,曝气量0.3 m3/h,此条件下2 h内UV254的去除率为87.1%。

The degradation of organic compounds in water by the photocatalytic oxidation process is mainly discussed in this paper. It is also investigated by single factor method that how the degradation rate of organic compounds changes with time. By the orthogonal experiment, it is determined that the best combination of factors is that the particle diameter is 46 nm, the dosage is 0.5 g/L and the aeration rate is 0.3 m^3/h. Under that condition, the degradation rate of UV25, is 87.1% in 2 h.