污水处理厂各工艺阶段多环芳烃变化规律研究

被引：11

作者：

马珞

刘俊建

王晓昌

郭静歌

熊家晴

机构：

[1] 西安建筑科技大学环境与市政工程学院西北水资源与环境生态教育部重点实验室

来源：

环境工程学报 | 2010年 / 4卷 / 09期

关键词：

固相萃取; 气相色谱法; 多环芳烃; 城市污水;

D O I：

暂无

中图分类号：

X703 [废水的处理与利用];

学科分类号：

083001 [环境科学];

摘要：

采用固相萃取-气相色谱/氢火焰离子化检测器联用技术(SPE-GC/FID),对西安市某污水处理厂不同工艺段水体中的16种多环芳烃(PAHs)含量进行了长期监测。结果表明,原水中有13种PAHs检出,按浓度从大到小排序分别为:萘、菲、芴、芘、艹屈、二氢苊、苊、蒽、苯并(a)蒽、荧蒽、苯并(b)荧蒽、苯并(k)荧蒽、苯并(a)芘;原水中PAHs的总量在477.1～3 067.7 ng/L之间,平均值为1 833.1 ng/L,同国内外报道的结果相比,可认为西安市生活污水中PAHs的含量处于中等水平;二级处理工艺对PAHs有较好的去除效果,平均去除率为79%,其中,生物处理单元的贡献最大,去除率达到68%。

引用

页码：2037 / 2041

页数：5

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