水质对UV/H2O2降解17α-乙炔基雌二醇（EE2）的影响

被引：4

作者：

李青松 ^{[1
]}

高乃云 ^{[1
]}

马晓雁 ^{[1
]}

汪力 ^{[1
]}

赵建夫 ^{[1
]}

乐林生 ^{[2
]}

机构：

[1] 同济大学污染控制与资源化研究国家重点实验室

[2] 上海市自来水市北有限公司

来源：

环境科学 | 2006年 / 10期

基金：

国家科技攻关计划;

关键词：

UV/H2O2; EE2; 阴离子; 光降解速率常数; 内分泌干扰物;

D O I：

暂无

中图分类号：

TU991.25 [饮水消毒、水生物防除];

学科分类号：

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.

引用

页码：2050 / 2056

页数：7

共 9 条

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