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ID:31955477
大小:9.22 MB
页数:61页
时间:2019-01-29
《电镀综合废水治理技术的分析》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、STUDYONELECTROPLATINGCOMPREHENSIVEWASTEWATERTREATMENTTECHNOLOGYABSTRACTWiththerapiddevelopmentofelectroplatingindustry,economicallypeoplewhohavereceivedconsiderableinterests,buttheproductionprocessofwastewater,Becauseitcontainsalargeamountofpoisonousheavymetalionssuchaschromium
2、,nickel,copper,zinc,etc.,Ifdischargedwastewaterdirectly,heavymetalionnotonlycancauseairpollution,butalsoinfluencepeople’Slireandhealth,Soitmustdealwithitnotimetodelay.Thisthesismainlyusedthecompositeflocculationandheavymetalchelatingagentprocessingplatingcomprehensivewastewater
3、chromium,nickelion,thefirsttocompoundwithaluminiumpotassiumsulfate,PAC,PFSandCPAMfindedthebestratio,andoptimizedthroughorthogonaltest,theapplicationforthetreatmentofelectroplatingchromiumnickelmixedwastewater;Thenakindofheavymetalchelatingagent(HMCA)wassynthesizedusingdiethylen
4、etriamine(DETA),carbondisulfide,epichlorohydrinandNaOHasrawmaterials,studiedtheinfluencefactorsofsynthesisprocess,investigatedthemolarratioofdifferentmaterial,reactiontemperature,stirringspeed,reactiontimeontheinfluenceofthesyntheticproduct,theproductstructure,shapeandflocculat
5、ionofrawmaterialsDETA,HMCAandcaptureheavymetalchromiumnickelioncorrespondingchelatesarecharacterizedbyInfraredVisibleSpectrometer(FT-IR),ScanningElectronmicroscopy(FE-SEM),Theresultsshowthat:(1)Usingasingleflocculanttotreatplatingchromium,nickelmixedwastewater,flocculationeffec
6、tisnotideal.Sochoosedaluminiumpotassiumsulfate,PAC,PFSandCPAMasinvestigationfactors,top[Cr(III)],p(Ni抖)astheindex,determinedorthogonaltestoptimizedconditions,furthercompoundedwithfourkindsofflocculanttheratioⅡIofm(aluminiumpotassiumsulfate):m(PAC):m(PFS):m(CPAM)=50:35:2,usedint
7、hetreatmentcontainingchromium.nickelmixedwastewater,wastewatertreatmentP[Cr(III)】0.12mg/L,P(Ni计)O.26mg/L,lowerthanthestateallowsemissionsstandards,P(insolubles)for265mg/L,andindustrialwateranddrinkingwaterclose,canbeusedastheplatingproductioncirculationwater.(2)Throughtheexperi
8、mentalresearchshowthat,theoptimumprocessconditionsforh
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