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时间:2017-12-07
《天津城市污水泵站恶臭气体组分浓度及污染现状》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第29卷第6期中国环境监测Vol.29No.62013年12月EnvironmentalMonitoringinChinaDec.2013天津城市污水泵站恶臭气体组分浓度及污染现状1111211姬亚芹,陈丽,张雷波,焦姣,宫庆超,张颖,王秀艳1.南开大学环境科学与工程学院,天津3000712.天津大学环境科学与工程学院,天津300072摘要:为了解天津城市污水泵站恶臭的污染程度,选取天津市一个典型的城市污水泵站进行为期3天的采样,采集该污水泵站距离污染源强不同距离处的恶臭气体样品,用气相色谱-质谱联用仪(GS-MS)和分光光度法对采集样品的组分含量进行检测,比较了恶臭排放源
2、点和不同距离处的恶臭组分的浓度特征和污染现状。结果表明,该泵站恶臭污染物质以硫化氢、二氯甲烷和苯系物为主,还有一些烯烃和芳香烃衍生物;恶臭物质的浓度变化范围是n.d.~0.07373mg/m,大部分恶臭物质浓度一般由高至低表现为源点>下风向5m,源点>背景值,环境空气采样点与恶臭排放源相比,其降幅明显;虽然检测到的恶臭组分较多,但是其浓度与《恶臭污染物排放标准》(GB14554—1993)等标准中规定的排放限值相比,均未超标。关键词:城市污水泵站;恶臭浓度;污染现状中图分类号:X823文献标志码:A文章编号:1002-6002(2013)06-0052-06TheConce
3、ntrationsandPollutionConditionoftheOdorousMattersfromTianjinUrbanSewagePumpingStation1111211JIYa-qin,CHENli,ZHANGLei-bo,JIAOJiao,GONGQing-chao,ZHANGYing,WANGXiu-yan1.CollegeofEnvironmentalScienceandEngineering,NankaiUniversity,Tianjin300071,China2.CollegeofEnvironmentalScienceandEngineerin
4、g,TianjinUniversity,Tianjin300072,ChinaAbstract:InordertoresearchtheodorouspollutionlevelsofTianjinurbansewagepumpingstation,anurbansewagepumpingstationwaschosenforthreedayssampling.Thesampleswerecollectedwhichhaddifferentdiffusiondistancefromtheodorousemissionsource.Theconcentrationsofthe
5、sampleswereanalyzedbygaschromatograph-massspectrometer(GC-MS)andspectrophotometer.Todiscusstheodorouspollutionlevelsoftheurbansewagepumpingstation,theconcentrationsoftheodorousemissionsourceandtheenvironmentsamplingpointswerecompared.Theresultsshowedthatthemainpollutantswerehydrogensulfide
6、,dichloromethane,benzenecontentsandaromatichydrocarbonsetal.Theconcentrationsrangedfromn.d.to0.07373mg/m.Theconcentrationsofthemostodorantswereintheorder:theodorousemissionsource>the5metersofdownwinddirector,theodorousemissionsource>backgroundpoint.Theconcentrationsoftheenvironmentsampling
7、pointsdecreasedobviously,comparedwiththeodorousemissionsource.Andalltheconcentrationsoftheodorantsdidnotexceedtheemissionlimitsof“emissionstandardsforodorpollutants”(GB14554—93)andotherstandard.Keywords:urbansewagepumpingstation;theconcentrationofodorant;pollu
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