UV/微曝气联用工艺对内分泌干扰物BP的去除效果和影响因素  

Degradation of Endocrine Disrupting Chemicals(EDCs)-BP by Combination of UV/Micro-aeration Process and Impact Factors

作　　者：李若愚[1] 高乃云[1] 徐斌[1] 胡玲[1] 赵建夫[1] 乐林生 

机构地区：[1]同济大学污染控制与资源化研究国家重点实验室,上海200092 [2]上海市自来水市北有限公司,上海200086

出　　处：《环境科学》2007年第7期1477-1482,共6页Environmental Science

基　　金：国家高技术研究发展计划(863)项目(2002AA601130;2004AA649410);国家科技攻关计划重大项目(2003BA808A17);污染控制与资源化研究国家重点实验室开放课题(PCRRF05007)

摘　　要：采用新型工艺UV／微曝气对水中内分泌干扰物4-叔丁基苯酚（BP）进行降解研究．结果表明，UV／微曝气是一种高级氧化法，可以有效去除水中BP；UV/微曝气联用工艺降解BP受本底TOC值、BP初始浓度值、uV光强以及溶液初始pH影响较大．随着TOC值的降低，BP降解速率k1迅速增加；随着光强的增大，BP的降解速率呈线性增长；在189—410μg/L浓度范围内，k1随着BP浓度的增大而逐步增大，在410—971μg/L浓度的范围内，k1随着浓度的增大而逐步降低；pH2．77—4．01范围内Uw微曝气对BP降解速率较大，pH4．70—8．16范围内UV／微曝气对BP降解速率较低．The removal performances of EDCs 4-tert-butylphenol （BP） in water using a new process UV/micro-aeration was introduced. The results show that UV/micro-aeration process is also an advanced oxidation and BP can be effectively degraded by UV/micro-aeration process; the degradation of BP by UV/micro-aeration process is greatly influenced by TOC value, BP initial concentrations, intensity of UV radiation, and initial pH of solution. The k~ value of BP degradation increases with TOC values decreasing,or with intensity of UV radiation increasing. The effect of different BP initial concentrations on removal of BP has also been investigated. The kl value of BP degradation increases with increasing BP initial concentrations in the range of 189 ～ 410 μg/L, while decreases with increasing initial BP concentrations in the range of 410 ～ 971μg/L. The degradation of BP has been investigated under UWmicro-aeration over a wide pH range （2.77～ 8.16）, and BP degradation rate in UV/micro-aeration process was significantly enhanced by the initial pH in the range of 2.77 ～ 4.01, while decreases in the pH range of 4.70 ～ 8.16.

关 键 词：内分泌干扰物 4-叔丁基苯酚 UV/微曝气 ·OH 降解 

分 类 号：X131.2[环境科学与工程—环境科学]