摘要
探讨了"磁性颗粒负载型TiO2"用于光催化氧化-生物工艺,处理有机磷农药废水的可行性。试验结果表明,难降解废水经80min光催化氧化后,在生物段的COD去除率可达85%以上;在光催化预处理阶段生成的中间产物(对硝基苯酚和磷酸三乙酯)对后续生物处理会产生特别严重的影响,因此适当的光催化预处理程度是保证该工艺能够经济、高效运行的关键。
Using 'magnetic particle coating TiO_2' as photocatalyst,organophosphorus pesticides wastewater was degraded through integrated process of photocatalysis and biology.The results showed that 85% of COD could be removed at biological phase after 80 minutes' pretreatment through photocatalysis;the intermediates produced at photocatalysis phase had strong influence on the efficiency of biological treatment.Therefore,to determine the optimal hydraulic retention time of photocatalysis phase is the decisive factor in the integrated process of photocatalysis and biology.
出处
《河南科技大学学报（自然科学版）》
CAS
2005年第1期75-78,共4页
Journal of Henan University of Science And Technology:Natural Science
基金
天津市自然科学基金资助项目(043613111)
