| 水质对UV/H2O2降解17α-乙炔基雌二醇（EE2）的影响 |
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| 引用本文： | 李青松,高乃云,马晓雁,汪力,赵建夫,乐林生. 水质对UV/H2O2降解17α-乙炔基雌二醇（EE2）的影响[J]. 环境科学, 2006, 27(10): 2050-2056 |
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| 作者姓名： | 李青松 高乃云 马晓雁 汪力 赵建夫 乐林生 |
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| 作者单位： | 同济大学污染控制与资源化研究国家重点实验室 上海200092;同济大学污染控制与资源化研究国家重点实验室 上海200092;同济大学污染控制与资源化研究国家重点实验室 上海200092;同济大学污染控制与资源化研究国家重点实验室 上海200092;同济大学污染控制与资源化研究国家重点实验室 上海200092;上海市自来水市北有限公司 上海200086 |
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| 基金项目： | 国家高技术研究发展计划(863)项目(2002AA601130);国家科技攻关计划重大项目(2003BA808A17) |
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| 摘 要： | 采用UV/H2O2间歇式光氧化反应器,研究了溶液pH值、腐殖酸及水中常见阴离子HCO3-、NO3-、CO32-、Cl-和SO42-对UV/H2O2工艺降解17α-乙炔基雌二醇(EE2)的影响.结果表明,UV/H2O2工艺可以有效地去除水中的EE2,光降解过程符合一级反应动力学模型.双氧水投加量为5 mg/L时,在14W低压汞灯照射下,EE2在自来水和蒸馏水中的光降解一级反应速率常数为0.063 0min-1和0.132 4min-1.溶液中的腐殖酸和阴离子HCO3-、NO3-、Cl-、SO42-对EE2的光降解反应有抑制作用,4种阴离子浓度为5 mmol/L时,抑制作用依次为HCO3->SO42->Cl->NO3-,HCO3-可使光降解速率常数降低到50%.自来水中的光降解速率常数低于蒸馏水中的光降解速率常数是水中多种离子影响的结果.
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| 关 键 词： | UV/H2O2 EE2 阴离子 光降解速率常数 内分泌干扰物 |
| 文章编号： | 0250-3301（2006）10-2050-07 |
| 收稿时间： | 2005-11-09 |
| 修稿时间： | 2005-11-092005-12-05 |
Effect of water quality on degradation of 17alpha-ethynyestradiol (EE2) by UV/H2O2 combination process |
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| LI Qing-song,GAO Nai-yun,MA Xiao-yan,WANG Li,ZHAO Jian-fu and LE Lin-sheng. Effect of water quality on degradation of 17alpha-ethynyestradiol (EE2) by UV/H2O2 combination process[J]. Chinese Journal of Environmental Science, 2006, 27(10): 2050-2056 |
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| Authors: | LI Qing-song GAO Nai-yun MA Xiao-yan WANG Li ZHAO Jian-fu LE Lin-sheng |
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| Affiliation: | 1.State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China,1.State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China,1.State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China,1.State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China,1.State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China,2. Shanghai Waterworks Shibei Co.LTD,Shanghai 200086, China |
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| Abstract: | Effect of pH, HA and anions HCO3-, NO3-, CO3(2-), Cl- and SO4(2-) in aqueous solution on the photodegradation of 17alpha-ethynyestradiol (EE2) was studied by using a batch photo-reactor. The results show that 17alpha-ethynyestradiol (EE2) could be removed effectively by the UV/H2O2 process. The rate of photodegradation in aqueous solution follows first-order kinetics. When H2O2 was dosed as 5 mg/L, irradiated by a 14W low pressure mercury vapor discharge lamp, the first-order photodegradation rate constant of EE2 in distilled water and tap water were 0.0630 min(-1) and 0.1324 min(-1) respectively. HA, HCO3-, NO3-, Cl- and SO4(2-) have inhibitory action on EE2 photodegradation. When their concentrations at 5 mmol/L, their inhibitory action: HCO3- > SO4(2-) > Cl- > NO3-. HCO3- induced photodegradation rate constant of EE2 reduced by half, It was anions synthesize effect that caused photodegradation rate constant of EE2 in tap water lower than distilled water. |
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