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1、大連理工大學碩士學位論文蒽醌染料中間體強化偶氮染料生物脫色姓名:蘇妍彥申請學位級別:碩士專業(yè):環(huán)境科學指導教師:王競20080601葸醌染料中間體強化偶氮染料生物脫色EnhancedBiodecolourizationofAzodyesbytheAnthraquinoneDyesIntermediatorsAbstractAzodyesarewidespreadenvironmentalpollutantsassociatedwitht

2、hetextile,cosmetic,foodcolorants,printingandvariousotherpurposes10%15%ofthesedyesarereleasedintotheenvironmentduringtheprocessofproducingorusing111ereleaseofthesecompoundsintotheenvironmentisundesirable,notonlybecauseoft

3、heircolorbutalsobecausemanyazodyesandtheirbreakdownproductsaretoxicand/ormutagenictolifeAmongkindsofmethodsanaerobicaerobicbiotreatmentmaypresentarelativelye硒cientwayandbethemostfrequentlyappliedmethodstemovedyesfromwast

4、ewaterAnaerobicprocessisatimeconsumingprocess,reflectedbytherequirementoflongreactiontimesEnhancementbyredoxmediatorisaneffectivemethodtoineasetheperformanceofanaerobicdecolorizationSomequinonessuchasanthraquinone,naphth

5、oquinonearepowerfulredoxmedimors,whiletheyalealsopollutantandmoredifficulttobreakdownasthesecondarypollutionsThepurposeofthisdissertationiStofindnewredoxmediatorortechnologytoreducethesecondarypollutionscausedbyredoxmedi

6、atorsThreeaspectsaleincludedinthispaperEnhancedbiodecolourizationofazodyesbytheanthraquinonedyesintermedaitorsbromoamineacid(BAA)werestudied,andBAAc觚beeasilydegradedunderaerobicconditionnlebacterialcellswereimmobilizedby

7、entrapmentincalciumal#nate(CA),andthereusingwithomaddingBAAwasstudied111ebacterialcellsandanthnaquinonewerecoimmobilizedandthenthedecolourizationandreusingwerealsoinvestigatedmSisthefirstreportofcoimmobilizingbacteriaand

8、redoxmediatortotreatwastewaternesuspendedbacteriumcommunitycouldenhancethebiodecolourizationofmanykindsofazodyesusingbromoamineacid(BAA)asredoxmediatortheoptimumconditionsforAcidRed3RWereasfollows:pH,temperature30℃,gluco

9、seBAAandinitialdyeconcentrations400600mg/L19342mg/Land≤900mg/L,respectivelyUndertheseconditionstllemaximaldecolourzationrateWasabout95%,whichWasreachedwithin7hforsuspendedcellsand14hforimmobilizedbacteriaHoweverthelatter

10、needed3857mg/LBAAasredoxmediatorandinoculationamount1209/LInadditionafter7cycleswithoutBAAaddition,thedecolourzationrateofAcidRed3RbyimmobilizedbacteriaretainedOVer85%EnhancedbiodecolourizationofazodyesbyCOimmobilizedqui

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