催化臭氧氧化联用去除滤后水中天然有机物的研究  

Study on the removal of natural organic matter by the combination of ozonation and catalytic ozonation in filtered water

作　　者：王群[1] 王江川[1] 王林[1] 杨志超[1] 

机构地区：[1]西南交通大学地球科学与环境工程学院,成都610031

出　　处：《给水排水》2013年第11期115-119,共5页Water & Wastewater Engineering

基　　金：长江上游水与资源管理的可持续利用联合研究项目(2012DFG91520);中央高校基本科研业务费专项资金资助项目(SWJTU11BR053;SWJTU11CX065);西南交通大学个性化实验项目资助

摘　　要：考察了催化臭氧氧化联用对滤后水中有机物的去除效果,结果表明,臭氧氧化与O_3/CeO_2联用可以有效降低滤后水UV_(254)和DOC。臭氧氧化和O_3/FeOOH联用去除有机物的效果不及臭氧氧化与O_3/CeO_2联用。对催化臭氧氧化联用后的有机物进行EEM分析,臭氧氧化与O_3/CeO_2联用后A型荧光基团浓度快速降低,发生蓝移后的C型荧光基团变化很小;臭氧氧化与O_3/FeOOH联用后A型荧光基团和C型荧光基团的浓度同时降低。The experiments were carried out to investigate the removal effect of organic matter in filtered water by the different combined processes of ozonation and catalytic ozonation. The results showed that the combination of ozonation and ozonation catalyzed by CeO2 decreased UV254 and DOC effectively in the filtered water. The removal of organic matter by the comhination of ozo- nation and ozonation catalyzed by FeOOH was not as good as the combination of ozonation and ozonation catalyzed by CeO2. The organic matters were analyzed by the fluorescence excitation-emission matrix after the combined process. The concentration of fluorophores of type A decreased greatly and the concentration of fluorophores of type C which appeared blue shift were not evident after the combination of ozonation and ozonation catalyzed by CeO2 ; the concentration of fluoro- phores of type A and type C decrease simultaneously after the combination of ozonation and ozonation catalyzed by FeOOH.

关 键 词：臭氧 氧化铈 催化氧化 有机物 分子质量 

分 类 号：X703[环境科学与工程—环境工程]