Cu/Al_2O_3催化臭氧氧化降解水中甲草胺的研究  

On Cu/Al_2O_3 catalytic ozonization for degradation of methyl oxalic amine in water

作　　者：李海燕[1] 曲久辉[1] 王子健[1] 陈盈盈[1] 

机构地区：[1]中国科学院生态环境研究中心环境水质学国家重点实验室,北京100085

出　　处：《给水排水》2005年第3期21-24,共4页Water & Wastewater Engineering

基　　金：国家自然科学基金重点项目(20337020)国家自然科学基金杰出青年基金项目(50225824)

摘　　要：研究了在Cu／Al2O3存在下臭氧氧化降解水中一种具有内分泌干扰作用的有机污染物--甲草胺的效能及主要影响因素。研究证明,Cu／Al2O3具有明显的催化臭氧氧化效能。对催化臭氧氧化降解前后水的TOC、电导及内分泌干扰活性等指标进行的测定结果表明,在Cu／Al2O3催化剂的作用下,反应溶液的TOC比O3单独氧化处理的TOC有更大程度的降低,即对甲草胺的矿化程度大大提高;矿化程度的提高使溶液的电导有所提高进而促进对甲草胺的处理。催化臭氧氧化处理后水的内分泌干扰活性比非催化过程的有明显降低,说明Cu／Al2O3催化剂可有效去除甲草胺的中间氧化产物,能彻底去除水中甲革胺这种内分泌干扰物质。The effect and influencing factors in degradation of methyl oxalic amine (MOA), which is an organic pollutant with endocrine interference in water, were researched under condition where Cu/ Al2O3 is existing at the ozonization process. The results shown that Cu/Al2O3 is catalytic to ozonization evidently. The inlet and outlet of Cu/Al2O3 catalytic ozonization process were sampled and examined for TOC, conductivity and endocrine interference activity and the examination results shown that the TOC of liquid inside the Cu/Al2O3 catalytic ozonization reactor decreased largely than that of ozonization reactor without catalysis, this means the mineralization of MOA increased. Consequently this increased the conductivity of the solvent and made further degradation of MOA. Also the endocrine interference activity of the catalytic effluent decreased evidently than that of non-catalytic. All these shown that the intermediate products of MOA oxidation could be removed by Cu/Al2O3 catalytic ozonization process, this endocrine interference substance in water could be removed from water drastically.

关 键 词：臭氧氧化 内分泌干扰物质 甲草胺 降解 有机污染物 TOC 氧化处理 Al2O3 催化过程 催化剂 

分 类 号：TU991[建筑科学—市政工程] X506[环境科学与工程—环境工程]