类固醇雌激素在生活污水处理中的去除过程

被引：24

作者：

阳春

胡碧波

张智

机构：

[1] 重庆大学三峡库区生态环境教育部重点实验室

来源：

中国给水排水 | 2008年 / 10期

关键词：

污水处理; 内分泌干扰物; 类固醇雌激素; 生物降解;

D O I：

暂无

中图分类号：

X703 [废水的处理与利用];

学科分类号：

083002 ;

摘要：

介绍了类固醇雌激素的去除机理及其在污水处理过程中的变化。研究表明:雌酮(E1)、17β-雌二醇(E2)和17α-乙炔基雌二醇(EE2)是生活污水中对生态环境和人类健康最具潜在影响的3种雌情化物质,雌激素通过吸附作用可从水相转移至固相活性污泥中,这也是生物降解的首要步骤;而生物降解则是污水处理过程中雌激素的雌情活力被去除的主要途径且遵循一级反应模式。雌激素的去除率随着污水处理程度的增加而提高,二级污水厂出水中总雌激素浓度普遍高于雌情阈值浓度(1ng/L),因此二级处理后增加深度处理工艺是保证出水水质的有效手段。

引用

页码：11 / 15

页数：5

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