光催化降解有机磷农药废水的可行性

在ＴｉＯ２粉末的存在下，研究光催化降解有机磷农药废水的可行性。结果表明，ＣＯＤｃｒ６５０ｍｇ／Ｌ，有机磷１９．８ｍｇ／Ｌ的有机磷农药废水在３７５Ｗ中压汞灯照射４ｈ，ＣＯＤ去除率为９０％，有机磷将完全转化为无机磷。同时还研究了光催化剂ＴｉＯ２的用量，反应液初始ｐＨ值，空气流量，外加Ｆｅ３＋浓度等多种因素对光降解的影响；并利用太阳聚光做了室外实验

FEASIBILITY STUDY ON DEGRADATION OF ORGANIC PHOSPHOROUS PESTICIDE WASTEWATER BY PHOTOCATALYSIS

The feasibility study on degradation of organic phosphorous pesticide by photocatalysis with the existence of dioxide titanium has been introduced in this paper, which signify that 90% COD can be removed and all the organic phosphorous turned into the inorganic provided that COD and organic phosphorous in the influent is 650 mg/L and 19.8 mg/L respectively and the wastewater is irradiated 4 hours with the strength of 375 W mercury arc lamp. Meanwhile the study on the relation between the photodegradation and some factors has been undertaken in terms of dosage of dioxide titanium, initial pH in the wastewater, air flow and the concentration of added ferric. Also the experiment has been made out door by taking advantage of spotted sunlight.