1、BRITISH STANDARD BS EN 12255-11:2001 Wastewater treatment plants Part 11: General data required The European Standard EN 12255-11:2001 has the status of a British Standard ICS 13.060.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 12255-11:2001 This British Standard, h
2、aving been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 May 2001 BSI 05-2001 ISBN 0 580 37453 X National foreword This British Standard is the official English languag
3、e version of EN 12255-11:2001. The UK participation in its preparation was entrusted to Technical Committee B/505, Wastewater engineering, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British
4、Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British St
5、andard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the
6、responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the E
7、N title page, pages 2 to 11 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN1225511 March2001 ICS13.060.30 Englishversion Wastew
8、atertreatmentplantsPart11:Generaldatarequired StationsdpurationPartie11:Informationsgnrales exiges KlranlagenTeil11:ErforderlicheallgemeineAngaben ThisEuropeanStandardwasapprovedbyCENon4February2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingt
9、hisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyother
10、languagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Nethe
11、rlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Re
12、f.No.EN1225511:2001EPage2 EN1225511:2001 Contents Page Foreword 3 1 Scope 3 2 Normativereferences.3 3 Termsanddefinitions 4 4 Clientoptions 4 5 Basicdesigndatarequired5 5.1 Loadingdata 5 5.2 Effluentquality,requirementsforthedisposalofresiduesandsludge .6 5 . 3 S i t e d e s c r i p t i o n 7 5.4 Ad
13、ditionaldatarequired7 5.5 Timeschedule.8 5.6 Startupandguaranteetesting.8 5.7 Operationalcostinformation.8 6 Documentstobeprovidedbyaturnkeycontractorortheconsultingengineer 9 6 . 1 C o m p l e t e d o c u m e n t s 9 6 . 2 D e s i g n o p t i o n s 9 6.3 Proposedsolution 9 6.4 Calculationandpresent
14、ationofcosts9 Bibliography .1 1Page3 EN1225511:2001 Foreword ThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC165“Wastewaterengineering“,the secretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,at
15、thelatestbySeptember2001,andconflictingnationalstandardsshallbewithdrawnatthelatest byDecember2001. ItistheeleventhpartpreparedbytheworkinggroupsCEN/TC165/WG42undWG43relatingtogeneral requirementsandprocessesforwastewatertreatmentplantsformorethan50PT.Thepartsoftheseriesareas follows: Part1: General
16、constructionprinciples Part3: Preliminarytreatment Part4: Primarysettlement Part5: Lagooningprocesses Part6: Activatedsludgeprocesses Part7: Biologicalfixedfilmreactors Part8: Sludgetreatmentandstorage Part9: Odourcontrolandventilation Part10: Safetyprinciples Part11: Generaldatarequired Part12: Con
17、trolandautomation 1 ) Part13: Chemicaltreatment Part14: Disinfection 1 ) Part15: Measurementoftheoxygentransferincleanwaterinactivatedsludgeaerationtanks Part16: Physical(mechanial)filtration 1 ) NOTE Forrequirementsonpumpinginstallationsatwastewatertreatmentplants,providedinitiallyaspart 2“Pumpingi
18、nstallationsforwastewatertreatmentplants“,seeEN7526“Drainandsewersystemsoutside buildingsPart6:Pumpinginstallations“. ThepartsEN122551,EN122553toEN122558,EN1225510andEN1225511wereimplementedtogetheras aEuropeanpackage(ResolutionBT152/1998).Thedateofwithdrawal(dow)ofallconflictingnationalstandardsis
19、20011231.UntilthedateofwithdrawalisreachedtheNationalandthealreadypublishedEuropeanstandardsboth coexist. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof thefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, Fran
20、ce,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden, SwitzerlandandtheUnitedKingdom. 1Scope ThisEuropeanStandardspecifiesdatawhichisnecessaryfortheplanning,design,bidding,performance guarantees,construction,startupandcompliancetestingofawastewatertreatmentplan
21、torpartsofit. DifferencesinwastewatertreatmentthroughoutEuropehaveledtoavarietyofpracticesbeingdeveloped.This standardgivesfundamentalinformationsaboutthepractices;thisstandardhasnotattemptedtospecifyallavailable practices. Detailedinformationadditionaltothatcontainedinthisstandardmaybeobtainedbyref
22、erringtothebibliography. 2Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter. For datedreferences,subsequentamendmentstoorrevisionsofanyofth
23、esepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision. Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN1085 WastewatertreatmentVocabulary 1 )inpreparationPage4 EN1225511:2001 prEN122551:1996 WastewatertreatmentplantsPa
24、rt1:Generalconstructionprinciples 3Termsanddefinitions ForthepurposesofthisEuropeanStandardthetermsanddefinitionsgiveninEN1085andthefollowingapply: 3.1 plant anewwastewatertreatmentplant;anupgradingorextensionofanexistingwastewatertreatmentplantorapartof aneworextendedwastewatertreatmentplant(e.g.sl
25、udgehandlingfacilities) 3.2 client amunicipality,cityorotherorganisationwhichintendstobuildawastewatertreatmentplantorpartsthereof,orits representativeprEN122551:1996 3.3 functionaltender atenderdocumentthatcontainsthedesignloads,adescriptionofthesitewheretheplantistobeerected,the relevantdischargel
26、imitsandanyadditionalrequirements NOTE Turnkeycontractorsdesigntheplantonthebasisoftherequirementsandplansspecifiedbythe client(possiblywiththeassistanceofaconsultingengineer)andgivebidsontheplantasawholein accordancewithanoverallguarantee.Theturnkeycontractorwhosecuresthecontractisresponsibleforthe
27、 constructionandthestartupoftheplantaswellasforthecompliancewithrequirementsdemandedinthe tenderdocuments(turnkeyproject). 3.4 sectionaltender tenderdocumentspreparedfordifferentsectionsofworkforaplant NOTE e.g.earthwork,concretework,mechanicalequipment,electricalinstallations,buildingsetc.Aplant is
28、normallydesignedbyaconsultingengineer.Differentcompaniesmaygetthecommissionforthedifferent sections.Aconsultingengineermaybecommissionedtocoordinateandtosupervisethework. 3.5 consultingengineer anindependantengineercommissionedbytheclientdesigningaplantorpartsofitand/orsupervisingthe construction NO
29、TE Hemayassisttheclientwithanyworkpreparingallorpartofthetenderdocuments.Hesupervises theconstructionandchecksthetimescheduleandcosts.Theconsultingengineerhasknowledgeand experienceinplanning,designandoperationalaspectsofwastewatertreatmentplants.Insomecountriesa specialcertificationmayberequired. 3
30、.6 turnkeycontractor acontractorbuildingaplantorpartsofitasawhole NOTE Theturnkeycontractorisacompanywhichhasknowledgeandexperienceinplanning,design, constructionandoperationalaspectsofwastewatertreatmentplants. 4Clientoptions Theclientdecideswhetherafunctionaltenderorasectionaltendershallbeprepared
31、. Theclientmaycommissionaconsultingengineertocarryoutoneormoreofthefollowing: establishthedesignloadsanddataasdescribedinclause5; preparethetenderdocumentsforafunctionaltender; designtheplantandestimatethecostsandpreparethetenderdocumentsforthesectionaltender; inspecttheconstructionincaseoffunctiona
32、ltendering; superviseandcoordinatetheconstructionincaseofsectionaltendering; evaluatethebidsonthetendersandtoproposewhichcontractororcontractors(incaseofsectionaltendering) shouldbecommissioned.Page5 EN1225511:2001 5Basicdesigndatarequired Whereapplicablethefollowingbasicdataeithermeasuredorestimate
33、dshallbeprovidedbytheclientorhis representativee.g.consultingengineer. 5.1Loadingdata 5.1.1Seweragesystem Thedataontheseweragesystemshouldinclude: areasservedbycombinedand/orseparatesewers; proportionsofflowsandloadsfromseparateand/orcombinedsewersystemsindryweatherconditions; storagecapacityforstor
34、mwaterwithintheseweragesystem; potentialtocontrolandbalanceflowsandloadswithintheseweragesystem; infiltrationflowsindryweatherconditionsandtheirseasonalfluctuations(whereappropriate); septicandcorrosivecomponentsofthewastewater. 5.1.2Populationserved Thedataonthepopulationservedshallinclude: current
35、populationconnectedtotheseweragesystem; populationconnectedatstartupoftheplant; populationconnectedatdesignhorizon; seasonalvariationsofpopulation(e.g.holidayperiods); weeklyvariationsofpopulation(e.g.movementofcommutingpopulation). 5.1.3Significanttradesandindustries Alistoftradesandindustrieswhich
36、dischargesignificantloadstotheseweragesystemshouldincludethefollowing flowsandloadse.g.: COD,BOD 5 ,KN,NH 4 N,NO 3 N,totalphosphorus,totalsuspendedsolids,organicsuspendedsolids,salinity andalkalinity; shownascurrent,startup,anddesigntargetdatafor: hourlypeak(m 3 /h,kg/h); weeklypeakday(m 3 /d,kg/d);
37、 maximumweeklyaverage(m 3 /week,kg/week); annualaverage(m 3 /a,kg/a). Inaddition,fortradesandindustrieswithseasonalfluctuationstheperiodsofhighandlowloadsshallbeincluded preferablyasanannualdiagram. Theclientshallspecifydischargerswhohandlehazardous,toxicorinhibitorymaterialandidentifywhichprecautio
38、ns arenecessarytopreventthathazardous,toxicorinhibitorymaterialsbeingdischarged. Organicdischargeswithlowbiodegradabilityshouldbespecified. 5.1.4Datafromexistingwastewatertreatmentplants Theloadingdataandtheoperationalresultsoftheexistingwastewatertreatmentplantscontainvaluableinformation. Asaminimu
39、mthefollowingdataforatleastthepreviousyearshallbeprovided: annualwastewaterflow(m 3 /a),proportionstreatedphysically,chemicallyandbiologically; averagequantity(m 3 /d)andcompositionofsludgewith%solids,and%volatilesolidscontentandheavy metals; annualquantityofscreenings,gritandfloatables; averagevolu
40、meofliquorfromsludgetreatment(m 3 /d)andorganicandnutrientcontent; averagequantityofdigestergas(m 3 /d);Page6 EN1225511:2001 electricalenergyproducedfromdigestergas(kWh/a); electricalenergyconsumed(kWh/a); probabilityplotsanddiagramsshowingthefollowingoverayearwastewaterflows(m 3 /d)andthedailyloads
41、 ofCOD,BOD 5 ,KN,NH 4 N,NO 3 N,totalphosphorus,totalsuspendedsolids,organicsuspendedsolids,salinity andalkalinity; seasonaltemperatureofthewastewaterorbiologicalreactortemperaturesoverayear; diurnalfluctuationofthewastewaterflowatdryweatherconditions; peakflowatstormwaterconditions(m/h); amountandlo
42、adsofotherwastesthanwastewaterbeingdeliveredtotheplant(e.g.nightsoil)and performanceofthetreatmentplant. 5.1.5Designflowsandloads Thedesignflowsandloadsshallbebasedonthepresentflowsandloadsconsideringgrowthordecreaseofthe population,thetradesandtheindustriesandfutureconnectionsofothercommunities,tra
43、desandindustries.Ifthere arenomeanstomeasurethepresentflowsandloadsthedesigndatamaybebasedontheprojectedpopulation. Inadditiontothepopulationthespecificdryweatherflow, l/(population d),apeakfactorconsideringstormwater andinfiltrationwaterandthespecificloadsing/(population d)ofCOD,BOD 5 ,KN,NH 4 N,NO 3 N,totalphosphorus, totalsuspendedsolidsandorganicsuspendedsolidshavetobeprovided.Flowsandloadsoftradesandindustries shouldbedeterminedbymeasurementsatthesites. Thefollowingdesigndatashouldbeprovided: ma
