预臭氧化CT值对滦河原水有机物去除效果的影响研究  

Influence of preozonation CT value on the removal effect of organic matter in Luanhe River

作　　者：张怡然[1,2] 赵宇 董捷 鲁金凤[2] 

机构地区：[1]天津泰达津联自来水有限公司,天津300457 [2]南开大学环境科学与工程学院,天津300071

出　　处：《供水技术》2015年第6期12-16,共5页Water Technology

基　　金：国家自然科学基金项目(51008162);天津市应用基础及前沿技术研究计划资助项目(14JCYBJC22900)

摘　　要：以天津市引滦原水为研究对象,研究了不同臭氧投加量（C）和不同反应时间（T）条件下预臭氧化工艺对DOC,UV254和SUVA等有机物指标的影响。结果表明,引滦原水经不同CT值条件下的预臭氧化处理后,随着初始臭氧浓度的增加和反应时间的延长,出水UV254和DOC值逐渐降低,SUVA值总体呈降低趋势。UV254去除率为9.1%~63.6%,DOC去除率仅为4.6%~34.9%。当初始臭氧质量浓度为2.024 mg/L,反应时间为10 min时,预臭氧化出水的UV254和SUVA值最低,当初始臭氧质量浓度为1.352 mg/L,反应时间为10 min时,预臭氧化出水的DOC值最低。The source water from Luanhe River in Tianjin was used to investigate the effects of ozone dosage（ C） and contact time（ T） during preozonation on organic matter index,such as dissolved organic carbon（ DOC）,UV254,and SUVA. The results showed that the values of UV254 and DOC of the outflow decreased gradually,SUVA also had the tendency of decrease after preozonation under different preozonation CT values. The removal rate of UV254 was 9. 1% to 63. 6% while the removal rate of DOC was only 4. 6% to 34. 9%. The outflow after preozonation had the lowest UV254 and SUVA value under the initial ozone dosage of 2. 024 mg / L and the contact time of 10 minutes. When the initial ozone concentration was 1. 352 mg / L and the contact time was 10 min,the DOC value of the preozonation outflow was the lowest.

关 键 词：预臭氧化 UV254 DOC SUVA 

分 类 号：TU991.33[建筑科学—市政工程]