好氧处理后城市污水荧光指纹的变化  

Fluorescence Fingerprint Transformation of Municipal Wastewater Caused by Aerobic Treatment

作　　者：吴静[1] 崔硕[1] 谢超波[1] 曹知平[1] 陈茂福[1] 律严励[1] 

机构地区：[1]清华大学环境学院环境模拟与污染控制国家重点联合实验室,北京100084

出　　处：《光谱学与光谱分析》2011年第12期3302-3306,共5页Spectroscopy and Spectral Analysis

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07313-007);清华大学自主科研项目(20101081863);国家(863计划)重点项目(SQ2009AA06XK1482350);国际科技合作重点项目(2007DFC90170)资助

摘　　要：传统有机物参数如COD和BOD等只能表示总量,无法展示有机物成分。荧光光谱可以展现有机物组成,如同指纹与水样一一对应,被称为水质荧光指纹。该文研究了以生活污水为主的城市污水三维荧光光谱在典型活性污泥法处理前后的变化,识别出该类污水荧光指纹中可生物降解和难降解有机物的分布区域:城市污水的激发波长/发射波长=280/340nm与225/340nm附近的荧光主要由可生物降解的物质产生,而激发波长大于300nm和激发波长小于300nm且发射波长大于400nm的两个区域的荧光主要由难降解物质产生。结果表明荧光指纹可以检测污水处理工程的运行效果并指导反应器设计和运行。The conventional parameters such as COD and BOD only could represent information about total organic content.Flu-orescence spectrum can display organic composition and it is unique for each sample,so it is referred as＂fluorescence finger-print＂.In the present study transformation of excitation-emission matrix of municipal wastewater with sewage as major compo-nents after aerobic treatment was investigated and then the zones of biodegradable and non-biodegradable organic matters werefigured out：the fluorescence at excitation wavelength/emission wavelength of about 280/340nm and 225/240nm derived frombiodegradable organics and those of the zone of excitation wavelength above 300nm and the zone of excitation wavelength below300nm and emission wavelength above 400nm were mainly related with non-biodegradable organics.The above-mentioned re-sults indicated that fluorescence fingerprint could be used to evaluate the performance and instruct design and operation of aerobicsystems.

关 键 词：三维荧光光谱 水质荧光指纹 城市污水 好氧处理 生物可降解性 

分 类 号：X830.21[环境科学与工程—环境工程]