鐵催化還原-UASB預處理DNT廢水的研究.pdf

1、南京理工大學碩士學位論文鐵催化還原UASB預處理DNT廢水的研究姓名：程開榮申請學位級別：碩士專業(yè)：環(huán)境工程指導教師：張晉華20100601Abstract碩士論文AbstractThreeprocessesofzero—valentiron，ironscrapandcopperizedironcatalyticreductionwasappliedtothetreatmentofDNTsimulatedwastewaterTheeff

2、ectofthethreeprocessparametersofdifferentpH，doseofreductantandreactiontimewereanalyzedcomparativelyTheexperimentalresultsshowthattheoptimumprocessparametersofthethreemethodswerepH三3，doseofreductant3509／Landreactiontime12

3、0minwhenDNTinfluentconcentrationWas200mg／LTheremovalofDNTwere42％，83％and875％，respectivelynleprocessofcopperizedironcatalyticreductionWasinvestigatedindetailTheinfluencelawoftherotationspeed，temperature，Sulfate，Nitratewasd

4、iscussedwhenthecopperizedironcatalyticreductiontreatedDNTsimulatedwastewaterIthadbeenfoundexperimentallythattheremovalofDNTWasobviouslyimprovedwhentherotationspeedwaschangedfrom50r／minto140r／minSulfateconcentrationandNit

5、rateconcentrationhadsomeinfluencesontheremovalofDNTThetemperaturehadlittleeffectfrom25℃to45“CThechangeCHIVeofDNTconcentrationastimewasaccordedwithfirst—orderkineticsTransformationmechanismofcatalyticreductiontotreatDNTsi

6、mulatedwastewaterWasdiscussedT11esurfacemorphologyandcrystalstructureofzerovalentiron，ironscrapandcopperizedironwerecharacterizedbySEMandXRDThecauseofthethreemethodsdifferenttreatmenteffectwasdiscussedInfluentande铘uentDN

7、TsimulatedwastewaterwereanalyzedbyGCMSAnilineasreductionproductWasdetectedinreactionThereactionpathwaywasconcludedThecopperizedironcatalyticreductionWasappliedtothetreatmentofDNTproductionwastewaterTheoptimalprocesscondi

8、tionsweredeterminedbasingontheorthogonalexperimentandthesinglefactorexperiment，nleoptimumdosingquantity，pH，reactiontimeandmassrationforCu／FeofthecopperizedironfortreatmentDNTproductionwastewaterwere6009／L，3，2hoursand005％

9、，respectivelyTheremovalofCODandDNTwere45％and82％，respectivelyBythefirstcatalyticreduction，theeffluentCOD，dinitrotolueneandanilinewereabout2500mg／L，100mg／Land90medL，respectivelyrnleeffluentofthefirstcatalyticreductionDNTpr

10、oductionwastewaterWastreatedbythesecondcatalyticreductionTheeffluentCOD，DNTandanilinewereabout1000mg／L，Omg／Land20mg／L，respectivelyTransformationmechanismofcatalyticreductiontotreatDNTsimulatedwastewaterWasilluminatedThec