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时间:2019-10-08
《重金属螯合剂处理垃圾焚烧飞灰的稳定化技术_徐颖》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64卷第5期化工学报Vol.64No.52013年5月CIESCJournalMay2013檭檭檭檭檭殐殐檭檭研究简报檭重金属螯合剂处理垃圾焚烧飞灰的檭殐殐檭檭檭檭檭稳定化技术徐颖1,陈玉2,冯岳阳2(1河海大学浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京210098;2河海大学环境学院,江苏南京210098)关键词:重金属螯合剂;药剂稳定化;焚烧飞灰;重金属形态DOI:10.3969/j.issn.0438-1157.2013.05.045中图分类号:X524文献标志码:A文章编号:0438-1157(20
2、13)05-1833-07Stabilizationtechnologyintreatingmunicipalsolidwasteincinerationflyashusingheavymetalchelatingagent1,CHENYu2,FENGYueyang2XUYing(1KeyLaboratoryofIntegratedRegulationandResourceDevelopmentofShallowLakesofMinistryof2Education,HohaiUniversity,Nanjing210
3、098,Jiangsu,China;SchoolofEnvironmentalEngineering,HohaiUniversity,Nanjing210098,Jiangsu,China)Abstract:Inviewoftreatmentefficiencyandstabilityaboutstabilizationtreatmentofflyashfrommunicipalsolidwasteincineration,astabilizationtechnologywasdevelopedfortreatingh
4、eavymetalsinflyashusingorganicheavymetalchelatorammoniumdipropyldithiophosphate(ADD).TheeffectofpHonheavymetalleachedamountfromstabilizedflyashwasstudied.ThecontentsofdifferentformsofheavymetalsinflyashwerecomparedbeforeandafterstabilizationtreatmentwithADDchela
5、tor,andthestabilizationeffectwasanalyzedwithdifferentamountsofADDchelator.TheresultshowedthatstabilizationrateagainstPb,Zn,andCdof1.5%ADDchelatorreached95.6%,85.5%and93.4%respectively,andtheamountsofPb,Zn,andCdintheleachatemetthePollutionControlStandardsforHazar
6、dousWasteLandfill(GB18598—2001)atpHvaluesexceeding3.ThecontentsofPb,ZnandCdboundtocarbonatesinflyashafterADDchelatortreatmentwassignificantlydecreasedwithsignificantlyincreasedcontentsboundtoorganicmatter.ThePb,ZnandCdstableformcontentsincreasedby15.4%,17.1%and2
7、4.3%respectively,andaccordinglyreducedtheriskofsecondarypollutionofstabilizedproductsunderenvironmentchange.ThestabilizationeffectofADDchelatoronheavymetalsinflyashwasapparentlybetterthanthatofinorganicstabilizingagentlimeandsodiumsulfide.Keywords:heavymetalchel
8、atingagent;chemicalstabilization;incinerationflyash;heavymetalsforms2012-10-22收到初稿,2012-12-16收到修改稿。Receiveddate:2012-10-22.联系人及第一作者:徐颖(1957—),女,教授。Correspondingauthor
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