吸附——光催化氧化法处理四环素废水

Treatment of Tetracycline Aqueous Solution with Adsorption-photocatalysis Oxidation

以含 Zn O,Ti O2 等无机半导体的沸石作为吸附剂和光催化剂 ,采用高压汞灯为光源对四环素溶液进行了处理。通过正交实验 ,考察了 p H、光照时间、光照面积、沸石用量、初始浓度对四环素分解的影响 ,从实际应用出发 ,得出影响四环素降解的各因素的最佳取值及影响显著性次序。结果表明 ,p H对四环素分解影响最显著。

Used as adsorbent and photocatalyst,zeolite was applied to treat tetracycline aqueous solution with high pressure mercury lamp as light source.The effect of pH value,irradiation time,zeolite's dosage,irradiation area,initial tetracycline concentration on the tetracycline degradation was investigated in the orthogonal experiment.Proceeding from the actual application,this paper obtained the optimal technology of factors that affected the removal efficiency of tetracycline and the remarkable sequence of these factors.The results showed that pH was the most important factor to affect tetracycline degradation.These conclusions would be helpful to further study on the photocatalytic treatment of waste water for medicine industry and to broad utilize a new composite cleaning water agent.