氣液混合放電反應器特性及甲基橙脫色的研究.pdf

1、大連海事大學碩士學位論文氣液混合放電反應器特性及甲基橙脫色的研究姓名：呂丹申請學位級別：碩士專業(yè)：環(huán)境科學與工程指導教師：孫冰20090601英文摘要ABSTRACTThepulsedhigh—voltagedischargeisanewadvancedoxidationwatertreatmenttechnologyItgathershighenergyelectronradiation，chemicaloxidationphotoc

2、hemicaloxidationinoneprocessThewholesystemhasnoneedsofexternaloxidantandthetechnologyhasabroadapplicationprospectInthispapermethylorange(MO)dyewastewaterwaschosenastheobjective，someinvestigationswereconductedinthefollowi

3、ngfactors：thedischargecharacteristicsofreactor，parameteroptimizationtheimpactofelectricalchangesonMOdyewastewaterdecolorization，aswellastheeffectsofadditivesH202，Na2C03onactivespeciesandthedegradationmechanismoforganicpo

4、llutantTheresultswereasfollows：Thecolorgroupofa2；odyesMOcouldbeeffectivelydestroyedbypulsedmgh—voltagedischargeandahighdecolorizationrateWasobtainedThedecolorizationrateWasincreased謝ththegrowthofthetreatmenttimefordischa

5、rge，theimprovement。ofpeakvoltageandfrequencyUndertheconditionof30kVpeakvoltagethedecolorizationrateofMOWas86％afterdischargetreatmentfor15minTheliquidconductivityhasanincreasingtrendduringthedischargetreatmentprocessAsthe

6、initialconductivityWas1700ItS／cm，thedecolorationofMOWasupto85。34％。ThelargestenergyWasinjectedintothereactorAfteradditionofI1202，alargeamountofhydroxylradicalswereproducedSOthatthedecolorizationrateofMOWasincreasedTheopti

7、mumdistancebetweenneedleelectrodeandwatersurfaceWaslmmandtheoptimumimmersiondepthofgroundplateelectrodewas28mm，aswellastheoptimumnumbersofneedleelectrodeWas24andthedistancebetweentheneedleelectrodewas75mmWhenbubblingdiff