外文翻译SBR 法及其研究进展Word文档下载推荐.docx

外文翻译SBR 法及其研究进展Word文档下载推荐.docx

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developmentandcharacteristicofFranceofactivemud（SBR）,surveySBRismixingspeedDO,pH,betweenOPRandinfluencetodealwithresult,isitisitgetridofphosphorusmechanismandSBRandothercraftdealwithnewestprogressofsewagesyntheticallytonitrifyinsteadtonitrify.

Keyword:

Criticizingtypeintermittenceactivemudlawofthepreface（SBR）,Progress,Prospect

Theprocesssystemofactivemud,usethemostextensivetreatmenttechnologyinthefieldofsewagedisposalatpresent.Itisusedinthesanitarysewage,thetreatmentofmunicipalsewageandorganismindustrialsewageeffectively,takemeasurestobreakthroughtotraditionalactivemudtechnologyonlyassecondtreatmenttechnologytradition,canbeasdenitrification,tertiarytreatmenttechnologyofgettingridofthephosphorus.SBR（sequencingbatchreactor）law,namelyprefacecriticizetypeintermittenceactivemudlaw,theactivemudnoticeableoneactivemudlawtodealwithnewcraft.ItJapanesesewerassociationandAmericanafewrichinnovationmeaningandstrongwastewaterbiologicaltreatmenttechnologyoneofofcompetitivenessthatEnvironmentalProtectionAgencyassess.

1characteristicanddevelopment

1.1Produceanddevelop

SBRcrafthasalreadybeendevelopedasfarbackas1914,butbecausemonitoringmeanslaggedbehindatthattime,havenotbeenpopularizedandapplied.L.IrvineofU.S.A.carriedondeepresearchtoSBRcraftin1979,andCulverinIndianastateimprovedandputaSBRsewagetreatmentplantintooperationin1980.Astoonew-typetostopuptheappearancewhichexposetothesuntheangrydeviceandsoftwareengineeringthatthecomputercontrolledtechnology,variouskindsofafterthis,isitdissolveoxygenmeasureapparatus,fluviographhighcontrollingeconomicwaterqualitydetectioninstrumentingtocourseprecisiononlinetodevelopatthesametime,havingmanagedandrealizedautomationgraduallyinoperationofthesewagetreatmentplant,inadditionwaterquality,craftaresimplethatSBRmelts,dealingwiththeresultsteadily,shock-resistantloadstrengthisstrong,itisfinethatwaterqualityhappens,operateflexible,floorspaceadvantagesuchasbeinglittleandbecomeincludingU.S.A.,Germany,Japan,Australia,adding,etc.alotofhotcraftthatindustriallydevelopedcountryresearchanddevelopcompetitively.TakingAustraliaasanexample,itisuptonearlymorethan600tobuildupasewagetreatmentplantwhichhasadoptedSBRcraftinmorethan10yearsinthepast.

MiddleperiodbegantheapplicationstudytoSBRlawinthe1980sinourcountry.

1985,ShanghaiWusongmeatisitisitisitstandtoputourcountryintooperationfirstSBRlawsewagedisposaltodeveloptounite,designing2400t/dofamountofwaterdealtwith,theoperationresultisgood.Alreadytherearetwolarge-and-middle-scalesewagetreatmentplantswhichadoptSBRcraftinKunmingofYunnanProvinceatpresent,itisinsoundconditiontorun.ThesewagetreatmentplantthatTianjineconomicandtechnologicaldevelopmentzone100,000t/dadoptsSBRcraftputsintooperationrecentlytoo.Accordingtostudyingthesituationbothathomeandabroad,SBRlawisakindofhigh-efficient,economy,reliablewastewatertreatmentmethodwhichissuitableforthenationalconditionsofourcountry.

1.2Technologicalprocess

Mainreactoroftheintermittencetypeactivemudlaw,exposetothesunangryoperationofpoolitoperatestobetoflowinto,react,precipitate,dischargeandleaveunusedfiveprocessesnottomakeup.Thesewageisaccordingtothearrayinthereactor,entereachresponseprocessintermittently,eachoperation,SBRofreactoroperateattimearrangingaccordingtoorderthatintermittenceruntoo.

Beforenotflowingintoprocessimplement,leaveunusedprocesstreatedsewagealreadydischarge,exposetothesuntheremainingactivemudandmixtureofthehighdensityintheangrypool.Whenthesewageisrunintoandflowedinto,exposingtothesuntheangrypoolcanplayaroleinregulatingthepool,isitexposetothesunangrytocanisitexposetothesunangryresultinadvancetomake,canmakemudregenerationtogoon,resumeitsactivation.

TheresponseprocessismainaprocessofSBRcraft.Isitisitbookvolumetoreachassewage,canisitisitoperatetoreacttobegintoinjectinto,suchasgetridofBOD,nitrify,absorptionofphosphorus,andnitrifyetc.instead.Accordingtoreflectingthedegreethattheneedreaches,itisangrythatthetraceofcarryingonshorttimeisexposedtothesun,inordertoblowandtakeoffthebubbleornitrogenseizedonthemud,soastoensurethemashedofarranginggoesonsmoothly.

Arrangingthemudprocess,itisangryandmixthatstopexposingtothesun,makethemixtureinstaticstate,mudnotactiveandmoisturefrom,inotherwordstwotimesprecipitatebyfunctionofpool.Afterprecipitatingonifsurfacing,dischargedealingwithliquidconduct,stayduringexposingtothesunpoolnotangrymudthatprecipitateaskindsofmud,playthefunctionofthebacksetcurrentmud.

Leavingtheprocessunused,afterdealingwithandsurfacinganddischarging,thereactorstayscool,waitforthenextcycleofoperation.Duringthisperiod,itisangryinordertothecorruptionofavoidingthemudthatshouldexposetothesundisconnectedlyandslightly.Theactivemudleftunusedisinthehungerstateofthenutrient,soastheinflowprocessofenteringnextoperationcycle,theactivemudcangiveplaytostrongerabilityofabsorbingtostrengthenandgetridoffunction.ItisanimportantcontentinSBRcrafttoleavetheprocessunused.

1.3Craftcharacteristicandsubjectmatter

SBRcraftcompareswithactivemudlawofthecontinuoustype,havethefollowingadvantage:

（1）Thetechnologicalprocessaresimple,donotneedtosetuptwoandsinkingthepoolandmudbacksetcurrentequipmentseparately,canbesavedandsunkthepoolforthefirsttimeundermostsituations.

（2）Thefloorspaceissmall,thefabricationcostislow;

Especiallythesewagedisposalconstantordinaryactivemudlawofthesmalltownsavesmorethan30%ofcapitalexpenditure.

（3）Thenutrimentgetsridoftheresultanddenitrificationphosphoruseffectually.

（4）Themudsubsidesofgoodperformancly.

（5）Adaptabilityisgood,andeasymaintenancemanagement.ThesubjectmatterthatSBRlawexistsis:

Itiscomplicatedtooperate,expectmuchtotheautomaticcontrol;

Inadditionownitstechnologicalprocesshavedeterminedthedeviceutilizationratiooftheequipmentislow.

2studiesprogress

2.1ReactorDOexposetothesuntheangryway

2.1.1InfluenceofDO

Reactordissolvecontentofoxygeninfluencephysiologicalactivityofmicroorganisminthemud,thusinfluencethesewagedisposalprocess,soDOcontent

levelinthereactorisworthprobingintoverymuch.JeillOHandJ.Silverstein,toSBRreactor,DOsuppressesandnitrifiesfunctionandcarriesonresearchinstead,dissolvestheresearchrangeofoxygenfrom0.09mg/L-5.6mg/Linthesewage;

Findlowdensityverydissolveoxygencansuppresstonitrifyfunctioninsteadactivemudfinally,DO=0.09Atthemg/L,nitrifyspeedcanfromlargespeed0.0214mg-NOx-N/mg-MLSS/hdrop35%ofspeedtheirtomostinstead.Butpointoutatthesametime,actasDO=5.6Canisitnitrifyfunctioninsteadtoobservestillatthemg/L,andaccordingtoexperiment,tonitrifymodelreviseinstead.

2.1.2Mixtheinfluenceofthespeed

SuchpersonsasDrigues,JoseAlbertoDomingues,etc.havecarriedonresearchinmixingthewayofinflatingtomix,theydealwithCODasthesyntheticmunicipalsewageof500mg/lbycontainingtheparticlemudreactor,dealingwithcycleas8hours,handlingcapacityis2.0L.Mixresearchrangeofspeedfrom0rev./min~75rev./min,findtogetridofrate80~88CODfinally;

Cangetrelativelygoodmudthetimeofstayingin50rev./min,doesnotdestroytheparticleandmudatthesametime;

Anduseandmixtheeffectivecirculationthatcanincreasethereactortomaketotalcirculationtimeshorten.Experienceequationandfirstclassresponsedynamicsmodelthattheypointedouttheremainingorganicmattercanbeusedforpredictingthatmixtheimpactonreactorofthespeed.

2.2Themudexpands

Performanceisgoodthatthenormalactivemudsubsides,themoisturecontent,about99%,whenthemudgoesbad,themudisdifficulttoprecipitate,SVIvalueincreases,mudislooselyorganizedandvolumeexpansion,themoisturecontentrises,clarifytheliquidrarly,thecolorchangesdifferently,thishasproducedmudandexpanded.Mudexpandsabout95%ofproblemrelatestoexcessivehyperplasiaofthesilkformmushroominwatertreatment,itissilkformfungusthatisitcombinewatercontentgatherhighvisciditythatthingcausesexpandmoreoutsidethehighafterbirthgenerallytoexpand.SBRvaluegenerallyrelativelylowSVIhave,difficulttopresentquestionofexpanding,canpreventfromeithersometimes.

ShuYingWangpeopleutilizepetrochemicalindustrywastewaterstudysilkform

fungusexpandrelationinorganicloadamongthereactorinSBR,pointoutwhendissolveoxygen（DO）sufficientlyinthereactor,loworganicloadisapttocausethemudtoexpand,improvethecontrolthatorganicloadcanbeeffectiveandexpand;

Underthehighload,causereasonthatmudexpandofteninsufficientDO,improve

DOdensitycanmakemudisitcontroltoexpand,thisresulthasexplainedtoothe

essencereasonwhythemudexpandshappensinhighorganicload.

ChunDiGao,etc.utilizebeerw