炼焦过程产生的污染物分析_王培俊

第38卷第12期煤炭科学技术Vol138No1122010年12月CoalScienceandTechnologyDec.2010炼焦过程产生的污染物分析王培俊1,2,刘俐2,李发生2,田亚静3,胡振琪1,阳春花1(11中国矿业大学(北京)土地复垦与生态重建研究所,北京100083;21中国环境科学研究院土壤污染与控制研究室,北京100012;31环境保护部环境保护对外合作中心,北京100035)摘要:焦化厂是钢铁企业中对环境造成污染最严重的生产单元。在参阅有关文献的基础上,分析了焦化生产各个环节可能产生的污染。结果表明,备煤过程产生的煤尘、选煤废水、煤堆渗滤液,装煤过程产生的烟气,炭化室泄露的荒煤气,湿法熄焦产生的烟气、熄焦废水,荒煤气净化、焦油、粗苯精加工产生的烟气、焦化废水和固体废弃物等是焦化厂的主要污染源。炼焦过程产生的主要污染物为多环芳烃、酚类、氰化物、硫化物、重金属以及装煤、推焦过程产生的二口恶英类等。其中炼焦炉周边、荒煤气净化车间、焦油和粗苯加工车间是焦化厂污染最严重的区域。关键词:焦化;烟气;废水;污染物;废弃物;多环芳烃;酚类;硫化物中图分类号:X502文献标志码:A文章编号:0253-2336(2010)12-0114-05AnalysisonPollutantOccurredfromCokingProcessWANGPei-jun1,2,LIULi2,LIFa-sheng2,TIANYa-jing3,HUZhen-qi1,YANGChun-hua1(1.ResearchInstituteofLandReclamationandEcologicalRestoration,ChinaUniversityofMiningandTechnology(Beijing),Beijing100083,China;2.DepartmentofSoilPollutionandControl,ChineseResearchAcademyofEnvironmentalSciences,Beijing100012,China;3.ForeignEconomicCooperationOffice,MinistryofEnvironmentalProtection,Beijing100035,China)Abstract:Thecokingplantisaproductionunitoftheironandsteelenterpriseandwouldcausemostseriouspollutionstotheenviron-men.tBasedontherelatedreferences,thepaperanalyzedthepollutionsmightcausefromachlinkofthecokingplan.tTheresultsshowedthatthecoaldustfromthecoalhandlingprocess,thewasterwaterfromthecoalpreparation,coalpileliquid,thefluegasduringthecoalfeedingprocess,therawcoalgasreleasedfromthecoalcarbonizationchamber,thefluegasfromthecokewetquenching,wastewaterfromcokequenching,fluegasfromtherawgaspurification,coaltarandcrudebenzeneprocessing,cokingwastewaterandabandonedsolidswouldbethemainpollutionsourcesofthecokingplan.tThemainpollutantsoccurredfromthecokingprocesswouldbeincludingthepolycyclicaromatichydrocarbons,phenols,cyanides,sulfides,heavymetalsanddioxinsoccurredfromthecoalloadingandcokepushing.Thesurroundingareaofthecokeoven,therawcoalgaspurificationworkshopandthecoaltarandcrudebenzeneprocessingworkshopwouldbethemostseriouspollutionareaofthecokingplan.tKeywords:coking;smoke;wasterwater;pollutan;tabandonedmateria;lpol