1、Wastewatertreatmentp1.antsPart12:Contro1.andautomationbsi.BSEN1225542:2024BREsHSTANDARDNationa1.forewordThisBritishStandardistheUKimp1.ementationofEN1225512:2024.ItSUPerSedeSBSEN1.2255-12*2003,whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnica1.CommitteeB/505/40,WaStewaterTrea
2、tmentP1.ants50PT.A?IjaVofOrganizfttom)ttfcprOTenngfonthiscommitteecanbeobtainedon-49Contractua1.and1.ega1.considerationsThispub1.icationhasbeenpreparedingoodfaith,howevernoimp1.ied)bemade,andnoUndcrtakingiiabi1.ityisW四国岫监加WrtW陶W视四网36P网相照战陶IbCreasonab1.enessofthispubfication.1.1.andanysuchresponsibi1
3、ityandFiiM1.itybiiexpOffeayrtjw1.iefhedtoahdfa1.taD24Pub1.ishedbyBSIStandards1.imited2024掰U璐桓期9175295Comp1.iancewithaBritishStandardcannotconferimmunityfrom1.ega1.ob1.igations.ThisBritishStandardwaspub1.ishedundertheauthorityoftheStandardsPo1.icyandStrategjrCommitteeon31March2024.Anendmentscorrigen
4、daissuedsincepub1.icationEN122551225512:2024March2024EUROPEANSTANDARDNormeeuropeenneEuropaischenormICS13.060.30SupersedesEN1225S-12z2003Eng1.ishVersionWastewatertreatmentp1.ants-Part12:Contro1.andautomationStationsdepurationPartie12:RuIntionetKUimnbgenTci1.12:SteueninundAutamntisieningUUtomatisation
5、ThisEuropeanSundardwasapprovedbyCENon29Januaiy2024.CENmembersareboundtocomp1.ywiththeCEN/CENE1.ECInterna1.Regu1.ationswhichstipu1.atetheconditionsforgivingthisEuropeanStandardthestatusofanationa1.standardwithoutanya1.teration.Up*todate1.istsandbib1.iographica1.referencesconcerningsuchnationa1.standa
6、rdsmaybeobtainedonapp1.icationtotheCENCENE1.ECManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficia1.versions(Eng1.ish.French,German),AversioninanyOthcr1.angudgcmadebytrans1.ationundertheresponsibi1.ityofaCENmemberintoitsownIanguagcandnotifiedtotheCENCENE1.ECManagementCentrehasth
7、esamestatusastheofficia1.versions.CENmembersarethenationa1.standardsbodiesofAustria,7ium.Bu1.garia.CroatiaCyprus.CzechRePUb1.iaDenmark,Estonia.Fin1.and,France.Gennany,Greece.Hungry,Icehnd.Ire1.and,Ita1.y.1.utviv1.ithuania1.iixcmbourjvMa1.ta.Nethcr1.Ands,Norway,Po1.and,PmeansreservedWDridW1.dCforCENn
8、aHou1.Members.ContentsEuropeanforewordIntroductionScope.NormativereferencesTermsanddefinitionsISvinbo1sanda1.jbrevatons7Instruments.Genera1.requirementsInstrumentationandcontro1.requirements345,s.InstrumentationsystemsProcesscontro1.andautomation66.16.26.3Designandimp1.ementationInitia1.designDetai1
9、eddesignCommissioning,testandtakeover.11Annex闻仃解界NmUve)GiridaneefotHhese1.eetionof4triHnenadotreonre4endatHmto3Genera1.Instrumentation1.ifeCyC1.e一.2.1A.2.2A.2.3A24Stage1-InstrumentationpurposeStage2InstrumentationspecificationStage3-Insta1.1.ationA.2.5A.2.6A.3A.3.1Stage4-OperationandmaintenanceStag
10、e5Reviewandrep1.acementExamp1.esofbasicinstrumentationandcontro1.systems(rd116A.3.3Programmab1.e1.ogiccontro1.1.er(P1.C)basedinstrumentationandcontro1.systems.17A.3.4A.4.1AdVanCec1.PrCOntr。I.The1.eve1.Ofinstmmentationfcontro1.andautomationinwastewatersystems.OVerVieWA.4.2A.4.3Determinationofappropri
11、ateinstrumentandcontro1.systemsfortrick1.ingreactorp1.ants19Determinationofappropriateinstrumentandcontro1.systemsforactivateds1.udgeP1.antSmmm)Bib1.iographyMMMMtaMMMMEuropeanforewordThisdocument(EN12255-12:2024)hasbeenpreparedbyTechnica1.CommitteeCEN/TC165Wastewaterengincenng,rthesecretariatofwhich
12、ishe1.dbyDIN.ThisEuropeanStandardsha1.1.begiventhestatusofanationa1.standard,eitherbypub1.icationofanidentica1.textorbyendorsement,atthe1.atestbySeptember2024,andconf1.ictingnationa1.standardssha1.1.bewithdrawnatthe1.atestbySeptember2024.Attentionisdrawntothepossibi1.itythatsomeofthee1.ementsofthisd
13、ocumentmaybethesubjectofpatentrights.CENsha1.1.notbehe1.responsib1.eforidentifyinganyora1.1.suchpatentrights.ThisdocumentSupersedesEN12255-12:2003.EN12255-12:2024inc1.udesthefo1.1.owingsignificanttechnica1.changeswithrespecttoENI2255“2:2003:a) comprehensiverevisionandadditionina1.1.sections;b) adapt
14、iontothestateoftheart;c) updatingofthenormativereferences.Thisisthetwe1.fthpartpreparedbyWorkingGroupCEN/TC165/WG40re1.atingtothegenera1.requirementsandprocessestortreatmentp1.antsforatota1.numberOfinhabitantsandpopu1.ationequiva1.ents(PT)over50.TheJW1225WWftipf1.ikip1.es*Wastewatertreatmentp1.ants”
15、consistsofthefo1.1.owingparts:Part 2: StormwatermanagementsystemsPart 3: Pre1.iminarytreatmentPart 4: Primarysett1.ementPart 5: 1.agooningprocessesPart 6: Activateds1.udgeprocessPart 7: Bio1.ogica1.fixed-fi1.mreactorsPart 8: S1.udgetreatmentandstoragePart 9: Odourcontro1.andventi1.ationPart 10: Safe
16、typrincip1.esPart 11: Genera1.datarequiredPart 12: Contro1.andautomationPart 13: Chemica1.Ireatmen1.-Treatmentofwastewaterbyprecipitation/f1.occu1.a1.ionPart14：DisinfectionPart15：Measurementoftheoxygentransferinc1.eanwaterinaerationtanksOfactivateds1.udgep1.antsPart16：Physica1.(mechanica1.)fi1.trati
17、onNOTEPart2isunderpreparation.Anyfeedbackandquestionsonthisdocumentshou1.dbedirectedtotheusers,nationa1.standardsbody.Acomp1.ete1.istingofthesebodiescanbefoundontheCENwebsite.AccordingtotheCENCENE1.ECInterna1.Regu1.ations,thenationa1.standardsorganisationsofthefo1.1.owingcountriesareboundtoimp1.emen
18、tthisEuropeanStandard：Austria,Be1.gium,Bu1.garia,Croatia,Cyprus,CzechRepub1.ic,Denmark,Estonia,Fin1.and,France,Germany,Greece,Hungaiy1Ice1.and,Ire1.and,Ita1.y,1.atvia,1.ithuania.1.uxembourgMa1.ta,Nether1.ands,Norway,Po1.and,Portuga1.,Repub1.icofNorthMacedonia,Romania,Serbia,S1.ovakia,S1.ovenia,Spain
19、Sweden,Switzer1.and,TiirkiyeandtheUnitedKingdom.IntroductionDifferencesinwastewatertreatmentthroughoutEuropehave1.edtoavarietyofsystemsbeingdeve1.oped.Thisdocumentgivesfundamenta1.informationaboutthesystems；thisdocumenthasnotattemptedtospecifya1.1.avai1.ab1.esystems.Agenericarrangementofwastewatert
20、reatmentp1.antsisi1.1.ustratedinFigure1:2 primarytreatment3 secondarytreatment4 tertiarytreatmentDscreeningsandgritEprimarys1.udgeFsecondarys1.udge5 ;kMitina1.treatment(e.(.disinfectionorremova1.ofmicpo1.1.ut11nts)Gtertiarys1.udc6 s1.udgetreatmentHdigesteds1.udge7 1.agoons(asana1.ternative)1digester
21、gasArawwastewaterJreturnedwaterfromdevatering8 eff1.uentforrcusc(c.g.irrigation)Figure1-Schematicdiagramofwastewatertreatmentp1.antsDetai1.edinformationadditiona1.tothatcontainedinthisdocumentmaybeobtainedbyreferringtothebib1.iography.Theprimaryapp1.icationisforwastewatertreatmentp1.antsdesignedfort
22、hetreatmentofdomesticandmunicipa1.wastewater.NOTKFornxUirementsonpumpinginxUhtionsatwastewatertreatmentphntsvsceKN752fDrainand,ciwsystemsoutsidebui1.dingsSewersyiemmanagement,andEN16932.Droinandsewersystems,outsidebui1.dingsPumping5ysfcw:一Part1:Genera1.requirements;一Part2:PosidvepressurePart3:Vacuum
23、systems.1 ScopeThisdocumentspecifiesgenera1.requirementsforinstrumentationandspecificrequirementsforprocesscontro1.andautomationsystemsonwastewatertreatmentp1.antsformorethanSOPT.NOTE1Becauseof【herapidraceofdeve1.opmentofsensorandcontro1.equipment,thisdocumentisintendedasanOVerViCWandusesexamp1.esan
24、dgenera1.requirements,notdetai1.edequipmentspecifications.Detai1.edinformationadditiona1.tothatcontainedinthisdocumentcanbeobtainedbyreferringtotheBib1.iography.NOTE2A1.thoughECdirectivesbecomematterso11awinmemberstatesoftheEUandsomeothersituations,thisstandardisintendedforWIdCruseandhencethosedirec
25、tiveswithdeartechnica1.guidanceofatypethatwou1.dgenera1.1.ybeappropriateInastandardarereferencedmthetextand1.istedIntheBib1.iography.Thea1.ternauveof1.istingrequirementscopiedfromdirectiveswou1.dpotentia1.1.ycreateunacceptab1.econf1.ictwhendirectivesarereised.2 NormativereferencesThefo1.1.owingdocum
26、entsarereferredtointhetextinsuchawaythatsomeora1.1.oftheircontentconstitutesrequirementsofthisdocument.Fordatedreferences,on1.ytheeditioncitedapp1.ies.Forundatedreferences,the1.atesteditionofthereferenceddocument(inc1.udinganyamendments)app1.ies.EN16323:2014,G1.ossaryfofwastewaterengineeringterms)Pr
27、Otectionagainst1.ightningPart3:Physica1.damagetostructuresand1.ifehazardC爬的AdM1.ddM1.MR格俯础scionsForthepurposesofthisdocument,thetermsanddefinitionsgiveninEN16323；2014andthefo1.1.owingapp1.y.ISOandIECmaintaintermino1.ogfdatabasesforuseinstandardizationatthefo1.1.owingaddresses:ISOOn1.inebrowsingp1.at
28、form:avai1.ab1.eathttps:/www.iso.org/obpIECE1.ectropedia:avai1.ab1.eathttpswrw.e1.ectropedia.org3.1instrumentatione1.ectronicormechanica1.devicesthatareusedtoeithersenseormonitorprocessvariab1.esHGq1.1toentry:Thesecanhesp1.itintosrnsorsandmonitors.sensore1.ectrica1.ormechanica1.devicethatcommunicate
29、sthequa1.itativestateOfaprocessvariab1.eNote1toentry：Examp1.esofthisinc1.udeacontactprobeorswitchthatoutputsaOor1asanoff/onstateanddeviceswhichtransmit;ine1.ectrica1.signa1.(usua1.1.yavo1.ume)thatissohb1.etoprocessvariab1.e.3.1.2monitore1.ectrica1.ormechanica1.devicethatcommunicatesthequantitativest
30、ateofaprocessvariab1.eNote1toentry:Examp1.esofthisinc1.udeacontactprobeanddeviceswhichtransmitane1.ectrica1.signa1.(usua1.1.yacurrent)thatissca1.ab1.etoaprocessvariab1.e.3.1.3measurementsystemcombinationofasensorandamonitorthattogethercommunicatesthequantitatives1.ateofaprocessvariab1.e3.2processcon
31、tro1.andautomationcontro1.device(suchasaP1.C,contro1.1.erorre1.ay)thattakesinputsfromtheinstrumentationsystemtoautomatica1.1.ychangethestateofthesystemtoaspecifiedsetofcontro1.variab1.esNote1toentry：Thiscanbeaone-waysystemorifthecontro1.isacircu1.arcontro1.thiswou1.dbeca1.1.eddosed1.oopcontro1.3.2.2
32、processvariab1.ePVquantity,qua1.ity,orconditionofaprocessmediaorprocessobjectwhichva1.uemaybesubjecttochangeandcanusua1.1.ybemeasuredSOURCE:ISO15519-2:2015,3.1.8322setpointSPsettingwithinthecontro1.systemthatisthetargetsettingforthecontro1.systemtochangetheprocessvariab1.e3.2.3contro1.1.erdeviceforr
33、egu1.ationormanagementofasystemorcomponentSOURCE:ISO16484-5:2022r3.2.21)3.2.4te1.emetrysystemcommunicationssystemthatreceivesdatafrominstrumentationandcontro1.systemsandtransmitsthe1.eadingstoaremotedatavisua1.isationandstoragesystem3.2.5SCADAsystemsupervisorycontro1.anddataacquisitionsystemcombinat
34、ionofhardwareandsoftwareusedtosendcommandsandacquiredataforthepurposeofmonitoringandcontro1.4teS心SdOnsite.ASMactivateds1.udgemode1.sATEXatmospheresexp1.osib1.eandregu1.ationconcerningpotentia1.1.yexp1.osiveatmospheresHARThighwayaddressab1.eremotetransducer(protoco1.)PTtota1.popu1.ationP1.Cprogrammab
35、1.e1.ogiccontro1.1.erPVprocessvariab1.eRASreturnactivateds1.udgeSASsurp1.usactivateds1.udge(a1.soknownasWASorwasteactivateds1.udge)SCADAsupervisorycontro1.anddataacquisitionSPsetpointUVu1.travio1.et1.ight(UVtreatmentsystem)5中设FUmentff6H1(1.1.tftf1.tcontfjYequirements5.1 Genera1.requirementsThecontro
36、1.systemsha1.1.beconsideredatanear1.yp1.anningstagewhendesigningfortheovera1.1.process.Thecosts,inc1.udingtheinvestmentandoperatingexpensesforthecontro1.systemwithrespecttovarioustreatmenta1.ternativesshou1.dbeestimated.Accountsha1.1.betakenofthefact,thatasophisticatedcontro1.systemrequiresski1.1.ed
37、andtrainedpersonne1.formaintenance.Thedecision,ofwhetherasophisticatedcontro1.systemorsimp1.econtro1.sarerequired,isdependentonthep1.antsizeandprocesscomp1.exity.NOTEThere1.evantauthorityornationa1.orIcica1.regu1.ationscanhavere205-35.3.1 Instrumentationsystems1.1.instrumentationsystemssha1.1.： ensu
38、retheresu1.tsofanynonHoringarerepresentativeofthemediabeingmonitoredtakingintoaccountdifferencesinhomogeneity;becurrent1.ycapab1.eofcommunicatingwithte1.emetrysystemsoftheoperatorofthewastewatertreatmentsystem.A1.1.instrumentationsystemsshou1.dheinsta1.1.ed: sothatanysamp1.ingofthemediabeingmonitore
39、ddoesnotadverse1.yaffectthemediaastoaffectthesamp1.eresu1.t; insuchawayastominimizethedegreeoffou1.ing; inawaytobeaccessib1.esoanappropriatemaintenanceregimecanbeundertaken; sothattheydonotaffecttheresu1.tsofanyotherinstrumentsthatareinsta1.1.edinthemediameasured;toprotecttheinstrumentfromthemediath
40、atisbeingmeasuredsoastominimizedamagetotheinstruments； toprotecttheinstrumentfromanydamagetothedisp1.ayfromc1.imaticconditionsinc1.udingsundamagetothedisp1.ay; totakeintoaccounttheeaseandsafetyofrep1.acement.Whereenc1.osuresareusedthentheyshou1.dhaveadequateventi1.ationtopreventoverheating.0里蹄提依?MHd佻QH!d三*#VM三cth。temperatureisIikc1.ytofa1.1.be1.ow5thenInstrumentationsha1.1.be： appropriatetotheapp1.icationtakingintoaccountthenatureofthemediathatisbeingmeasuredanditspropensitytoaffectmeasurementthroughthefou1.ingoftheinstrumentandthesubsequentmaintenanc
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