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应用纳米光催化法处理高浓度焦化有机废水,大量对比试验结果表明,在实验室高曝气量、纳米TiO2/Fe3O4光催化紫外光照射条件下,焦化废水中的COD和氨氮降解率可达98.91%和77.35%。采用磁性Fe3O4复合TiO2得到的纳米TiO2/Fe3O4光催化材料,既保有悬浮态纳米TiO2的高催化活性,又便于回收再利用。纳米TiO2/Fe3O4光催化剂具有较好的光催化活性,在紫外光照射下,辅以充分的空气搅拌,可以实现高浓度有机废水的较深度处理,预计在高浓度有机废水处理中有较好的应用前景。
Nano-photocatalytic treatment of high concentrations of coking organic wastewater, a large number of comparative test results show that in the laboratory high aeration, nano-TiO2 / Fe3O4 photocatalytic ultraviolet light irradiation, coking wastewater COD and ammonia nitrogen degradation rate of up to 98.91 % And 77.35%. The nano-TiO2 / Fe3O4 photocatalytic material obtained by using the magnetic Fe3O4 composite TiO2 not only retains the high catalytic activity of the suspended nano-TiO2, but also is convenient for recycling. The nano-TiO2 / Fe3O4 photocatalyst has good photocatalytic activity. Under the irradiation of UV light and sufficient air agitation, the deep treatment of high-concentration organic wastewater can be realized. It is estimated that the nano-TiO2 / Application prospects.