城市生活污水处理厂进出水三维荧光光谱特征分析  

Three-Dimensional Excitation-emission Matrix Fluorescence Spectral Characteristics Analysis of Influent and Effluent From Urban Domestic Sewage Treatment Plant

作　　者：施俊[1] 王志刚[1] 肖永辉[1] 封克[1] 杨益军[1] 

机构地区：[1]扬州大学环境科学与工程学院,江苏扬州225127

出　　处：《大气与环境光学学报》2012年第1期31-37,共7页Journal of Atmospheric and Environmental Optics

基　　金：中国科学院环境光学与技术重点实验室开放基金(2005DP173065-10-03);扬州大学高层次人才科研启动基金

摘　　要：结合PARAFAC模型研究了污水处理厂进出水的三维荧光光谱特征.结果表明城市生活污水具有4个荧光区域,其中进水的1区和2区荧光中心较为明显,3区和4区荧光中心不明显;出水的四个荧光区都较为明显.运用平行因子法分析得出进水和出水DOM均含有3种主要的荧光组分,分别是类色氨酸、类酪氨酸和类腐殖质。3种荧光组分的得分值可以作为城市生活污水的另一荧光特征,根据得分值可以判断出进水中最不稳定的是类色氨酸和类酪氨酸,类腐殖酸则相对较为稳定。Three dimensional excitation-emission fluorescence spectra characteristics of influent and effluent from urban domestic sewage treatment plant were analyzed combined with PARAFAC model.The results indicated that urban sewage has four fluorescence centers.The 1 and 2 fluorescent center of influent were obvious.However,3 and 4 fluorescence centers were blurry.All the four fluorescence centers of effluent were quite obvious.Combining PARAFAC model,both the influent and effluent contain three kinds of fluorescence compositions,which are tryptophan-like、tyrosine-like and fulvic-like.The scoring values of three kinds of fluorescent compositions can be used as another fluorescence feature of urban sewage.According to the scoring values,tryptophan-like and tyrosine-like are unstable in both influent and effluent,but fulvic-like is relatively stable.

关 键 词：城市污水 三维荧光光谱 平行因子模型 

分 类 号：X832[环境科学与工程—环境工程]