给排水专业毕业设计翻译中英文对照20页.docx
- 文档编号:12886306
- 上传时间:2023-04-22
- 格式:DOCX
- 页数:18
- 大小:41.83KB
给排水专业毕业设计翻译中英文对照20页.docx
《给排水专业毕业设计翻译中英文对照20页.docx》由会员分享,可在线阅读,更多相关《给排水专业毕业设计翻译中英文对照20页.docx(18页珍藏版)》请在冰豆网上搜索。
给排水专业毕业设计翻译中英文对照20页
Oxidizeditchcraftindirtywaterhandleofapplicationanddevelopment
Summary:
ThistextexpatiatedprimarilytheCarrouseloxidizestheconstruction,craftmechanismoftheditchandcirculatetheproblemexsitedintheprocesswiththehomologousthemethodofsolution.Finally,introducetheCarrouseloxidizethelatestresearchprogressoftheditchandpointedoutthefutureandmainresearchdirection.
Keyphrase:
TheCarrouseloxidizesditchdividedsbythephosphortakesoffthenitrogenconstructionmechanism
ApplicationandDevelopmentofCarrouselOxidationDitchProcessonWastewaterTreatment
Abstract:
Thestructureandthetechniquesofcarrouseloxidationditchprocessonnitrogenandphosphorremovalareintroducedinthispaper.Theproblemsinrunningandtheircorrespondingresolventarealsopointed.Atlast,Theauthorshowedtheuptodateresearchimprovementandthemainlyfutureresearchdire-ction.
Keywords:
Carrousel;oxidationditch;nitrogenandphosphorremoval;structure;techniques
1.Foreword
Oxidizetheditch(oxidationditch)againacontinuouscirculationspiritpond(Continuousloopreactor),isaliveanddirtymiremethodakindoftotransform.OxidizingthedirtywaterinditchhandlesthecraftberesearchedtomanufacturebythehygieneengineeringgraduateschoolofHollandinthe50'sof20centuriessuccess.Sincein1954atDutchthrowintheusagefortheveryfirsttime.Becauseitsawaterfluidmattergood,circulatethestabilityandmanageconvenienceetc.techniquecharacteristics,alreadyatdomesticandinternationalandextensiveapplicationinlivethedirtywatertoisdirtytomanageaqueouslywiththeindustry[1].
Currentapplicationthanoxidizeextensivelytheditchtypeinclude:
The(Pasveer)oxidizestheditch,the(Carrousel)oxidizestheditch,(Orbal)oxidizestheditch,thetypeofToxidizestheditch(threeditchtypesoxidizetheditch),thetypeofDEoxidizestheditchtoturntooxidizetheditchwiththeintegralwhole.Theseoxidizetheditchbecauseofthedifferenceofesseinconstructionwithcirculating,thereforeeachcharacteristics[2].Thistextwillintroduceconstruction,mechanism,existentproblemanditslatestdevelopmentsthatCarrouseloxidizeditchesprimarily.
2.TheCarrouseloxidizestheconstructionoftheditch
TheCarrouseloxidizetheditchtoberesearchedtomanufacturebyDutchDHVcompanydevelopmentin1967.OxidizethelastthecompanyofDHVinfoundationoftheditchintheoriginalCarrouseltopermitedspeciallythecompanyEIMCOtoinventagainwithitspatentintheUnitedStatesCarrousel2000system(seethefigure),realizesthelivingcreatureofthehigherrequesttakesoffthenitrogenwithdividedbythefunctionof.Therehasbeenintheworlduptonowmorethan850CarrouselsoxidizetheditchwiththeCarrousel2000systemarecirculating[3].
Fromdiagramtherefore,theCarrouseloxidizestheditchtheusagethespiritofthatdefinitedirectioncontrolwithshakeupthedevice,facetomixwiththeliquiddeliverthelevelspeed,frombutmakedrivetheliquidofadmixturethatshakeupisinoxidizeditchshutmatchoutletcirculateflow.Thereforeoxidizetheditchhavethespecialhydraulicsflowsthe,currentcompletemixwiththecharacteristicsofthetypereactor,havethecharacteristicsthatpushtheflowtypereactoragain,theditchinsideexsitsobviouslyofdeliquescenceoxygendensitystepsdegree.Oxidizingtheditchcrosssectionisrectangleortrapezoids,theflatsurfaceshapeismanyforoval,theditchinternalwaterisdeepgeneralfor2.5~4.5m,thebreadthisdeepcomparefor2:
1,alsohavethedeepwateramountto7msof,ditchinsideaveragespeedinwatercurrentis0.3ms/s.Oxidizeditchspiritadmixtureequipmentscontainsurfacespiritmachine,thespiritofturntobrushorturnthedishandshoottoflowthespiritmachine,pipetypespiritmachinewithpromotetakecareoftypespiritmachineetc.,matchwithinrecentyearsusagestillcontainunderwaterpushmachine[4~6].
3.TheCarrouseloxidizesthemechanismoftheditch
3.1TheCarrouseloxidizestheditchhandlesdirtyandaqueousprinciple
TheatthebeginningcommonCarrouseloxidizesthedirtywaterininsideincraftoftheditchdirectwithdirtymireinrefluxtogetherenteroxidizetheditchsystem.ThesurfacespiritmachinemakesfuseintheliquidofadmixturethedensityoftheoxygenDOincreasesabout2the3mgs/L.Underthiskindofwellthetermoftheoxygen,themicroorganismgetstheenoughdeliquescenceoxygencomesandgotodividedbytheBOD;Atthesametime,theammoniaweretoooxidizednitratewithsecondnitrate,thistime,mixwiththeliquidbeplacedintheoxygenappearance.Inthespiritmachinedownstream,afterwatercurrentbebecomebytheswiftflowappearanceofthespiritDistrictofevenflowtheappearance,thewatercurrentmaintainsintheminimumcurrentvelocity,guaranteeingtheliveanddirtymirebeplacedinthefloatstheappearance.(averagecurrentvelocity>0.3ms/s)Oxidizemicrobiallytheprocessconsumedtofusetheoxygeninthewater,untilthevalueofDOdeclinesforzero,mixingwiththeliquidreporttheanoxiaappearance.Versanitricthatturnthefunctionthroughanoxiaarea,mixwiththeliquidentertohavetheoxygenarea,completingoncecirculating.Thatsysteminside,theBODdeclinesthesolutionisacontinuousprocess,thenitricturnsthefunctiontoturnwiththeversanitricthefunctiontakeplaceinsamepond.Becauseofstructuralrestrict,thiskindofoxidizetheditchalthoughcanthenvalidwhereaboutsBOD,dividedbythephosphorustakeoffthenitrogenousabilitylimited[7].
Forthesakeoftheacquisitionbetterdividedbythephosphorustakeoffthenitrogenousresult,Carrousel2000systemsincreasedaoxygenDistrictbeforecommonCarrouseloxidizeditchwiththeuniqueoxygenarea.(callagainthattheversanitricinfrontturnsthearea)ThedirtymireinallrefluxesenterstheanaerobicDistrictwith10-30%dirtywater,canundertheanoxiawith10-30%carbonsourcetermcompleteremainingofdirtymireinrefluxinsidenitricacidnitrogentoversanitrictoturn,createsfortheuniqueoxygenpondofhereafteruniqueoxygenterm.Atthesametime,anaerobicDistrictinsideofconcurrentlythesexgermsconvertthedissolubilityBODVFA,thegermacquiretheVFAitsassimilationPHB,theenergysourceneededsolvesinthephosphoricwaterandcausephosphaticreleasing.TheanaerobicDistrictawaterenterstheinnerpartinstallstheuniqueoxygenareathathavethemixer,theso-calleduniqueoxygenisapondinsidetomixwithliquidsincehavenothenumeratoroxygen,alsohavenothecompoundoxygen(nitricacidroot),thehereuniqueoxygenenvironmentisnext,70-90%dirtywatercanprovidetheenoughcarbonsource,canmakethegermofreleasedthephosphoruswell.TheuniqueoxygenareaconnectsbehindthecommonCarrouseloxidizestheditchsystem,furthercompletingtodoawaywiththeBODandtakeoffthenitrogenwithdividedbythephosphorus.Finally,mixwiththeliquidtransferthedirtymireinsideinoxidizeditchenrichoxygenareaeject,whileenrichingtheoxygenenvironmentgermsurfeit,phosphorusfromthewater,ejectingthesystemwiththedirtymireinsurplus.Likethis,inCarrousel2000systems,thancompletedtodoawaywiththeBOD,CODwithtakeoffatthesametimegoodlythenitrogendividedbythephosphorus.
SynthesizinganddirtywaterintheriverCity,longsandCitydecontaminationcenter[softhedirtythefactoryofwaterinthefirstinKunmingofadoptionthatcraftshandlesthemovementresultofthefactorytherefore:
ThroughCarrousel2000systemafterhandling,theBOD,COD,SSdoesawaywiththeratetoallcometoa90%above,theTNdoesawaywiththeratecomestoa80%,theTPdoesawaywiththeratetoalsocometoa90%.
3.2TheCarrouseloxidizestheditchdividedsbythephosphorustakesoffthenitrogenousinfluencefactor.
AffectingtheCarrouseloxidizestheditchdividedsbythephosphoricfactorisdirtymire,nitratedensityandqualitydensitiesprimarily.Theresearchexpresses,beingtotalanddirtymireas11%thatahourbiggestphosphorus4%withdealisitsfuckdirtymiredealwithinliveanddirtymire,keepforthethegermphysicalendowmentmeasures,butwhendirtymireover15dhourdirtymiretheinsideisbiggesttocontaintheobviousdescentindealinphosphorus,canningnotreachthebiggestdividedingbytheresultofphosphorusonthecontrary.Therefore,prolongpersistentlythedirtymire(forexample20ds,25ds,30ds)istohavenonecessary,properchoosetousewithinthescopeof8~15d.Atthesametime,highnitratedensitywithlowqualitydensitydisadvantageindividedbytheprocessofphosphorus.
AffectingtheCarrouseloxidizestheditchtakesoffthenitrogenousandmainfactorisDO,nitratedensityandcarbonsourcedensities.Theresearchexpresses,oxidizingtheditchinsideexsitsdeliquescenceoxygendensitystepsdegreenamelythegoodoxygenareaDOattains3~3.5mgs/L,theanoxiaareaDOattains0~0.5mgs/Lisapriorconditiontotakeplacenitricturnreactionandversanitricsturnthereaction.Atthesametime,amplecarbonsourceandhigherC/theNratiobenefitstotakeofftocompletenitrogenously[7].
4.TheCarrouseloxidizesproblemandsolutionmethodsoftheditchesse.
ThoughtheCarrouseloxidizestheditchhasawaterfluidmattergood,theanti-poundsattheburthenabilitystrong,dividedbythephosphorustakeoffthenitrogenefficiency.But,inphysicallyofmovementprocess,stillexsitsaseriesofproblem.
4.1Dirtymireinflationproblem
Whendiscardtheaquaticcarbohydratemore,theN,Pcontainstheunbalanceofdeal,thepHvalu
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 排水 专业 毕业设计 翻译 中英文 对照 20