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1、中国环境科学2011,31(4)：576~583ChinaEnvironmentalScience城市污水处理厂的挥发性恶臭有机物组成及来源11*2111唐小东,王伯光,赵德骏,刘舒乐,何洁,冯志诚(1.暨南大学环境工程系,广东广州510632；2.广州市水务工程建设管理中心,广东广州510640)摘要：采用GDX-502采样管和二次热解吸与GC-MSD联用仪研究广州一个典型城市污水处理厂不同污水处理单元和周边环境空气中挥发性恶臭有机物(MVOC)的组成和含量,通过对源排放特征、分子标志物和大气化学活性分析,建立该污水处理厂的MVOC源成分谱.结果表明,该污水处理厂检出烷烃、卤代烃、烯烃、芳香
2、烃、含氧有机物和硫醚等6类40种挥发性有机物(VOC),其中34种为MVOC成分,各处理单元排放的MVOC含量占其VOC总量的95%以上;苯系物、2-丁酮、乙酸乙酯、乙酸丁酯和甲硫醚等为该污水处理厂重要的MVOC分子标志物,其中苯系物的含量最高,占源排放MVOC总量的75.89%;经归一化和重整的MVOC源成分谱与环境受体点的MVOC组成之间具有显著相关性.关键词：挥发性恶臭有机物(MVOC)；城市污水处理厂；分子标志物；成分谱中图分类号：X703.5文献标识码：A文章编号：1000-6923(2011)04-0576-081SourcesandcomponentsofMVOCfromamun
3、icipalsewagetreatmentplantinGuangzhou.TANGXiao-dong,1*2111WANGBo-guang,ZHAODe-jun,LIUShu-le,HEJie,FENGZhi-cheng(1.DepartmentofEnvironmentEngineering,JinanUniversity,Guangzhou510632,China；2.GuangzhouWaterProjectConstructionManagementCenter,Guangzhou510640,China).ChinaEnvironmentalScience,2011,31(4)：5
4、76~583Abstract：GDX-502samplingtubes,two-stagethermaldesorptionandgaschromatographycoupledwithmassspectrometrywereusedtoinvestigatethecompositionandthecontentofmalodorvolatileorganiccompounds(MVOC)emittedfromdifferentprocessingunitsandtheambientsitesofatypicalmunicipalsewagetreatmentplantinGuangzhou.
5、Themolecularmarkers,atmosphericchemicalreactivity,sourceprofileswerestudied.Theresultsshowthat40volatileorganiccompounds(VOCs)weredetectedintheplantandwerecomposedofalkanes,halogenatedhydrocarbons,alkenes,aromatichydrocarbon,OVOCandmercaptans.34MVOCspeciesweredetected,accountingformorethan95%oftheto
6、talVOCsineachprocessingunits.Benzenes,2-Butanone,ethylacetate,butylacetateanddimethylsulfidewerefoundtobetheMVOCmolecularmarkersoftheplant,whilebenzeneswerethedominantcomponentswiththecontributionof75.89%tothemeasuredMVOC.AstrongcorrelationwasfoundbetweenthereconciliatedsourceprofileandthemeasuredMV
7、OCcompositionattheambientreceptorsite.Keywords：malodorvolatileorganiccompound(MVOC)；municipalsewagetreatmentplant；molecularmarker；sourceprofile城市污水处理厂在正常运行过程中会产生具有特殊的发臭基团,可产生扰人的恶臭气味,刺恶臭气味,是一种复杂的大气面源.随
