印染污泥焚烧烟气污染控制案例分析

中国环境科学2013,33(9)：1591~1595ChinaEnvironmentalScience印染污泥焚烧烟气污染控制案例分析唐子君1,2,方平1,3,岑超平1*,梁阳明1(1.环境保护部华南环境科学研究所,广东广州510655；2.中国环境科学研究院,北京100012；3.中国科学院广州地球化学研究所,广东广州510640)摘要：以广东省某两家印染厂的印染污泥焚烧项目为主要研究对象,从污泥处理技术路线、焚烧设备及烟气处理流程等各方面入手,对各厂印染污泥与煤混烧烟气中颗粒物、NOx、SO2、酸性气体(HF、HCl)和重金属等污染物的进行采样分析,并对各厂现有烟气污染物控制设施的运行效果进行调研,结果表明,布袋除尘的效果较为理想,除尘效率可达99%以上;使用印染废水作为吸收液的湿法脱硫技术对SO2及酸性气体的去除效果不理想;SNCR对NOx具有一定的去除效果,是一种较为经济、高效的脱硝技术;焚烧后,大部分重金属最终以飞灰的形式被除尘器去除,但仍有部分重金属如Hg在出口烟气中的浓度仍然很高,需要采取必要的措施控制烟气中的重金属.此外,基于印染污泥焚烧实例分析,提出适于印染污泥与煤混烧烟气处理工艺流程.关键词：印染污泥；污泥焚烧；烟气治理；重金属中图分类号：X703文献标识码：A文章编号：1000-6923(2013)09-1591-05Analysisofairpollutantsemissioncontrolcasesontextiledyeingsludgeincineration.TANGZi-jun1,2,FANGPing1,3,CENChao-ping1*,LIANGYang-ming1(1.SouthChinaInstituteofEnvironmentalSciences,MinistryofEnvironmentalProtection,Guangzhou510655,China；2.ChineseResearchAcademyofEnvironmentalSciences,Beijing100012,China；3.GuangzhouInstituteofGeochemistry,ChineseAcademyofScience,Guangzhou510640,China).ChinaEnvironmentalScience,2013,33(9)：1591~1595Abstract：TwosludgeincinerationprojectsoftextiledyeingfactoriesinGuangdongProvincewerestudied.Startingfromthesurveyofsludgetreatmenttechniqueroutes,incinerationfacilitiesandfluegastreatmentprocesses,airpollutantsofsludgeandcoalco-combustionsuchasdust,NOx,SO2,acidgases(HFandHCl),heavymetalsandtheremovalefficiencyofdifferentpollutantcontrolfacilitiesofeachprojectwereclarifiedbymeansofon-sitesamplinganalysisandinvestigation.Theresultshowsthattheeffectofbagfilterissatisfying,theremovalefficiencycouldreachmorethan99%;FGDtechnologywhichusingtextiledyeingwastewaterasabsorbentisnotsuitableforSO2andacidgasesremoval;SNCRtechnologyiseconomicalandefficientforNOxremoval;mostheavymetalsexistingindustcouldberemovedbyfilters,whiletheconcentrationofsomeheavymetals(suchasHg)inoutletgasisstillhigh,inwhichextrameasuresneedtobetakentocontrolheavymetalsinfluegas.Inaddition,aprocessofdyeingsludgeandcoalco-incinerationfluegastreatmentisputforwardaccordingtotheanalysisoftextiledyeingsludgeincineration