染料中间体废水的催化臭氧化预处理  

Dye Intermediate Wastewater Pretreatment by Metal Oxide Catalyzed Ozonation

作　　者：张彭义[1] 祝万鹏[1] 余刚[1] 蒋展鹏[1] 

机构地区：[1]清华大学环境工程系

出　　处：《环境科学》1996年第4期14-17,共4页Environmental Science

基　　金：国家"八五"科技攻关项目

摘　　要：自制了２种高活性的催化剂Ｍｎ－０２和Ｆｅ－Ｎｉ－Ｕｒｅａ，并对典型染料中间体废水──吐氏酸废水进行金属催化臭氧化预处理．对初始ＣＯＤ浓度约为１５００ｍｇ／Ｌ的废水，当臭氧投加量为０．８２ｇ／Ｌ时，ＣＯＤ去除卒大于５０％；其臭氧化指数（ＯＩ）分别为豆．４４和１．０７，而相应的空白则为１．９０．色质联用和离子色谱分析表明吐氏酸的金属催化臭氧化产物为：邻苯二甲酸、乙二酸、硝酸根、硫酸根，提出了吐氏酸的臭氧化途径；理论分析表明，吐氏酸经金属催化臭氧化后，可生化性大大改善．Two catalysts were prepared and used for pretreatment of typical dye intermediate wastewater-tobias acid wastewater by metal oxide catalyzed ozonation.For wastewater with initial COD concentration of 1500 mg/L,when ozonation dose is 0.82 g/L,COD removal efficiency is above 50%. And Ozonation Index(OI) of the two catalysts are 1.44 and 0.7 respectively,while the blank γ-Al2O3,is 1.90 The ozonation products of tobias acid identified by gas chromatography-mass spectrography are obenzendicarboxylic acid,oxalic acid,sulphate ion and nitrate ion,and then the ozonation pathway is proposed.After tobias acid is treated by metal oxide catalyzed ozonation,the biodegradability is improved apparently.

关 键 词：吐氏酸废水 催化剂 金属催化臭氧化 染料 

分 类 号：X789.03[环境科学与工程—环境工程]