甲拌磷农药废水的光催化降解  

Photocatalytic Degradation of Phorate in Wastewater by TiO_2

作　　者：古凤才[1] 王金明[1] 刘超 

机构地区：[1]天津大学理学院,天津300072

出　　处：《化学工业与工程》1999年第6期354-356,366,共4页Chemical Industry and Engineering

摘　　要：对光稳定、生物难降解的甲拌磷农药废水经ＴｉＯ２ 或负载型ＴｉＯ２ 光催化降解方法处理，化学耗氧量达到排放标准。研究了ｐＨ 值、阴离子种类对降解过程的影响，ｐＨ＜ ２ 或ｐＨ＞ ８ 时，降解率高于５０％ ，催化剂稳定性好；当ＣＯ３２－ 和ＳＯ３２－ 离子质量浓度约为６．０ｍ ｇ／Ｌ时降解率下降２０％ 。The photocatalytic degradation of phorate in wastewater, which is one of the typical refratory biodegradable and photostable orgaophosphorus pesticides,was studied using TiO 2 partical and loaded TiO 2 on SiO 2 as photocatalysts respectively The results showed that the value of COD was below 200mg/L after the treatment process The effect of pH,anions such as CO 3 2- ,SO 3 2- ,PO 4 2- ,and SO 4 2- on the effciency of the photocatalytic degradation was discussed

关 键 词：甲拌磷 有机磷农药 光催化降解 废水处理 农药 

分 类 号：X789.03[环境科学与工程—环境工程]