光催化氧化—生物法处理有机磷农药废水  

Integrated Technology of Photocatalysis & Biology for Treatment of Organophosphorus Pesticides Wastewater

作　　者：李涛[1] 谭欣[1] 任俊革[1] 

机构地区：[1]天津大学环境科学与工程学院,天津300072

出　　处：《河南科技大学学报（自然科学版）》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)

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.

关 键 词：有机磷农药废水 光催化氧化 生物法处理 难降解废水 COD去除率 生物处理 对硝基苯酚 乙酯 磷酸 生物工艺 

分 类 号：T-29[一般工业技术] X703[环境科学与工程—环境工程]