volume 2 of tender documents · 2019. 6. 24. · the tender is invited on turnkey basis for design,...

VOLUME 2

OF TENDER DOCUMENTS

Domestic Sewage Treatment Plant

TECHNICAL SPECIFICATIONS BILL OF QUANTITIES AND DRAWING

for NCSCM

National Centre for Sustainable Coastal Management. Anna University Campus, Chennai

Architects HVAC Consultant

M/S. McD Built Environment Research Laboratory Pvt. Ltd.

#1354,9th cross,80 feet road,JP Nagar, 1St phase, Bangalore‐560078

Phone: 080‐41214020 www.mcdberl.com

PROJECT:NCSCM STPSPECIFICATIONS

ARCHITECTS:FLYINGELEPHANTSTUDIO 1 CONSULTANTS:McDBERL

DOMESTICSEWAGETREATMENTPLANT

3.TECHNICALSPECIFICATIONSA. GENERAL

The main source of effluent is wastewater resulting from Toilet flushing and urinalflushing.Thescopeofworkincludesdesign,drawings,gettingapprovalsfromstatutorybodies,construction, and erection and commissioning of domestic sewage treatment plant withelectrical,mechanicalandpiping.ThetreatedeffluentshouldbefittoreuseforACmakeupincoolingtowers.Theworkisrequiredtobecarriedoutonaturnkeybasiscoveringaguaranteeofsatisfactoryperformanceasperthestandardslaidforaminimumofoneyear.

B BASICDATAONWASTEWATER(SEWAGE)(ASSUMEDVALUES) Quantity:200KLD C TREATEDWATERQUALITY

Treated effluent quality shall be within the following values for various parameters, fortypical reuse application of meeting Air conditioning make up water in cooling tower withwatercooledAirconditioningsystem.

D THETREATMENTPLANT(STP)

Based on the RawWasteWater/ Treated effluent characteristics following treatmentschemeissuggested: The raw effluent is led by gravity into a Bar Screen Chamber provided with MS BarScreen.Thescreenedeffluentiscollectedinanequalizationtank.Thissumpisprovidedtodampentheflowfluctuationsandinordertokeepthesolids insuspension,pre‐aerationisprovidedwithcoarsebubbletubulardiffusers.

pH : 6.0–8.5BOD5@20ºC : 500mg/LCOD : 900mg/LTSS : 400mg/LOil&Grease : 100mg/L

pH : 6.8‐7.5BOD5@20ºC : ≤10mg/LCOD : <20mg/LE‐Coli : NilTurbidity : ≤2NTUOil&Grease : NilResidualchlorine : ≥1mg/L



SequentialBatchReactor(2Nos)The sequencing batch reactor (SBR) process is a sequential suspended growth process inwhichallmajorstepsoccurinthesametankinsequentialorder.SBRs are a variation of the activated‐sludge process. They differ from activated‐sludgeprocessbecausetheycombineallofthetreatmentstepsandprocessesintoasinglebasin,ortank,whereasconventionalfacilitiesrelyonmultiplebasins.

BasictreatmentProcessTheoperationofanSBRisbasedonafill‐and‐drawprinciple,whichconsistsoffivesteps–fill,react,settle,decant,andidle.Thesestepscanbealteredfordifferentoperationalapplications.

Fill: Duringthefillphase,thebasinreceivesinfluentwastewater.Theinfluentbringsfoodtothe

microbesintheactivatedsludge,creatinganenvironmentforbiochemicalreactionstotakeplace.

React: Thisphaseallowsforfurtherreductionor"polishing"ofwastewaterparameters.Duringthisphase,nowastewaterentersthebasinandthemechanicalmixingandaerationunitsareon.Becausetherearenoadditionalvolumeandorganicloadings,therateoforganicremovalincreasesdramatically.

Settle: Duringthisphase,activatedsludgeisallowedtosettleunderquiescentconditions–noflowentersthebasinandnoaerationandmixingtakesplace.Theactivatedsludgetendstosettleasaflocculentmass,formingadistinctiveinterfacewiththeclearsupernatant.

Decant:Duringthisphase,adecanterisusedtoremovetheclearsupernatanteffluent.Idle: Thisstepoccursbetweenthedecantandthefillphases.Duringthisphase,asmallamount

ofactivatedsludgeatthebottomoftheSBRbasinispumpedout–aprocesscalledwasting.

PressureSandandCarbonFilter

Theprocessofpassingthewaterthroughbedsofsandorothergranularmaterialsisknownas filtration. In this filter unit the water to be treated is passed under pressure. Broadlyspeaking, filtersessentiallyconsistofathicklayerofsandandthewaterisallowedtopassthroughit.Pressuresandfiltersremoveturbidity,suspendedparticles,colourandodourthatarepresentinwastewater.Activated carbon is themost widely used substance for the removal of taste and odours,becauseithasexcellentpropertiesofattractingimpurities,suchasgases,finelydividedsolidparticlesandotherliquidimpurities.Thisfilterunitalsoworksinthesamewayasapressuresandfilterexceptforthefactthatactivatedcarbonisusedinplaceofsandlayer.MechanicalFilterPress



Filterpresses are facilitiesdeveloped for themechanical liquid‐solid separation.TheFilterPressisidealforsludgedewateringandslurrydewateringinsmallvolumes.Usingafeedingpump the suspensionwill be led into the filter press and against a liquid‐permeable filtercloth.Duringtheprocesstheretainedsolidsformthesludgecake.ChlorineDozer

Chlorineisaneffectivedisinfectant.Thedosingofchlorineiscarriedoutinachlorinedosingtank.

Providemeteringpumpdosingcapacity4‐6LPHwith25literscapacitydosingtank.Theexcesssludgeshallbepressed throughanautomatichydraulic filterpressand thecakesformedcanbeusedasmanure.TreatmentPlantUnits

1. Barscreenchamber2. Oil&Greasetrap 3. Equalizationtank 4. Pump‐Cum‐MCCRoom 5. SequencingBatchReactorTank 6. DecantTank 7. SandFilter&ActivatedCarbonfilter8. Chlorinator 9. Finaltreatedeffluenttank 10. Sludgeholdingtank11. Filterpress12. Pipingandcabling 13. LTpower&Motorcontrolpanel

E DESIGNCRITERIA

TheSTPisdesignedonthebasisofwastewaterflowof25cum/dayforqualityparametersasinParaB&CwherethecontractordesiretosubmitalternateoffersforSTP,thesevaluesshallformthedesigncriteriaforalternatedesigns.Alternatedesignshallbesubmittedasseparateoffer.FurtherfollowingdesigncriteriahavebeenfollowedinthedesignofSTPinthistender.Alternative,TheTendererisrequestedtoquoteforSTPwithaSEQUENCINGBATCHREACTOR(SBR)

1.1 EqualizationTank(ReceivingTank) CapacityofTank : 63m31.2SBRFeedpumps : 18m3/hr@10mHead(2W+1S).Workinghours : 12Hrs



1.3 SBRTanks‐2nos F:MRatio : 0.15 MLSS : 4000mg/lit Oxygenrequirement : 2kg/kgoftheBOD

1.4DecantTank Detentiontime : 6.0hoursbasedonhourly Flowofrawsewage.1.6 FilterFeedpumps : 10m3/hr@30mHead(1W+1S).Workinghours : 20Hrs1.7PressureSand&ActivatedCarbonFilter

FiltrationVelocity : 15m3/m2/hr1.8 CommonTreatedwatertank Detentiontime : 12hoursbasedonhourly Flowofrawsewage.

1.9AirBlowers : 260m3/hr@4MWC,0.45kg/cm2(1W+1S).



F. SCOPEOFCONTRACT&DESCRIPTIONOFWORK SCOPEOFCONTRACT

The tender is invited on turnkey basis for Design, Engineering, Supply, Construction,ErectionandCommissioningofSewageTreatmentPlant(STP),togivetreatedeffluentqualityas per standards as well as that specified in the Guarantee clause attached herewith &includesthe followingitemswhicharewithinthescope of contract.Thedrawingsattachedherewitharepreliminary. However, thesuccessful contractorwillbe required to submit theDetailed Process & Structural drawings (shop drawings) incorporating the thicknesses ofvarious structuralmembers. These detailed drawings shall be submitted to Consultants fortheir comments & approval. All the works shall be carried out as per final "valid forconstructiondrawings"only.1.1 Civilworksandstructuralsteelfabricationworksrequiredforequipment,tanksfortheSewagetreatmentplantshallbedoneasrequiredbycivilcontractor1.2 Complete interconnecting piping between various units as per requirement includingsupplyofallmaterialslikepipes,fittings,allvalves,gaskets,flanges,nutsandboltsincludingallmaterialsrequiredfornecessarypipesupportsandassociatedcivilworks,etc.,complete.

1.3 Supply,erectionandcommissioningofalltheequipmentsrequiredforthesewagetreatmentplantaspertheindividualequipmentspecificationanddetailsgivenherewith.

1.4 Allelectricalworksincludingallelectricalmotorsforthevariousequipment,cabling,LTpanel,starters,etc.,willbeprovidedbythecontractor.Thescopeofworkincludesallnecessarycivilworks like construction of panel foundations, cable trenches, cable supports, lighting ofentire plant as per drawing etc., complete. Commissioning of all the equipment after theelectricityissuppliedwillbewithinthescopeofcontract.All temporary sheds, office, godowns, etc. required for storage of materials and forcontractorssupervisorypersonnelatsite.

G. DETAILSOFCIVILWORKS

Please refer the drawing no P‐103 (Site Plan) location of STP and P‐100 drawing for thedimensionsofthetanksandschematicofSTP.Tendererstoreconfirmtheadequacyofthesizesproposed.Note:Theabovedetailsareindicativeonlyfortheguidanceofthecontractor.Thesuccessful contractor shall submit thedetailsworking/shopdrawings forall civilworks;relatedcivilworksforotherprocessequipment,electricalworksetc.

H DETAILSOFPIPINGWORK

Following piping works including excavation, back filling, masonry / structural pipesupports,puddleflanges,concretebedding,pipespecialsandGMD/FValvesofLEADER(orapprovedCIvalvesorapprovedequivalentmakeonlyandorCID/FValvesofKIRLOSKAR/SAUNDERSmakeonlyareallincludedinthescopeofcontract.Thequantityandsizesofthepipesareindicative,thecontractorstoquoteforthedesignedsizesofthepipes.



‐ 80diaGICL'B"Tata/Jindalmakefromscreenchambertoequalizationtankappx.‐ 65/50diaGICL 'B'Tata/Jindalmakeorpumpsuctionanddelivery toFABTank from

equalizationtank.‐ 80NBdiaGICL'B'Tata/JindalmakeGIpipingfromFABTanktoclarifier.‐ 80diaGICL'B'Tata/JindalmakeGIpipingfromTubesettlertotreatedeffluentsump.‐ 65/50 dia GI CL 'B' from treated effluent pumps to filters and 80mm from AC filter

outlet1.0 G.IPIPESANDFITTINGSFORWATERCONNECTIONS1.1 G.IPipes: GenerallyG.I (GalvanizedIron)PipesmediumClassBTATAmakeshallbeusedforsupplyofwaterinthesewagetreatmentplantetc.,Forexposedpipes,theClampsfixingshallbedonebymeansofmildsteelanglebracketsandclamps,keepingthepipesnotmorethan200mmclearofthewall. Whenit isconcealed,thepipechasingmaybeadopted. Forpipes fixed intheductsorrecessesetc.,providesufficientspace toworkon thepipeswith theusual tools. Thepipes shall notordinarilybeburied insolid floors. Whereunavoidablepipesmaybeburied for shortdistancesprovided adequateprotectionisgivenagainstdamageandshallbefixedataplaceapipeispassingthroughawallorfloortoallowfreedomforexpansionandcontractionandothermovements.Inthecase,thepipes is embedded inwalls or floors it should be paintedwith anti‐corrosive bitumastic ofapproved quality and pipe shall be wrapped in burlap or Hessian cloth impregnated withbitumen. ThewrappingshallbemadetofittightlyoverthepipeandwherewrappingwithanewpieceoverlaptheoldpipeandwherewrappingonejointitshallbetiedwithM.Swireornylonthread.Wherepipesareencasedwithinchasesmadeinthewall,theyshallbefixedtothewallwithM.Sclampssoastopreventmovementbeforefillinginandmakinggoodthechase.All screwed tubes and sockets shall have pipe threads conforming to therequirements of IS: 554 ‐ 1964 (or revised). Screwed tubes shall have taperthreadswhilethesocketsshallhaveparallelthreads.1.2 G.IFittings:Thefittingsshallbe“R”BrandorapprovedequalconformingBIS.The fittings shall have screw threads at the ends and conforming to therequirement of IS: 544‐1955 (or revised). Female threads or fittings shall beparallelandmalethreads(exceptonrunningnipplesandcollarsofunions)shallbe taper. Unions shall beprovidedat regular intervals in thepipelines for easymaintenance/Repair /Replacementofpipes.The fitting shall bedesignatedbytherespectivenominalboresofthepipesforwhichtheyareintended.1.3 Cutting,Threading,LayingandJoining:



The pipes and fitting shall be inspected at site before use to ascertain that theyconform to the specification. Thedefectivepipes shall be rejectedand removedfrom site. Where the pipes have to be cut or rethreaded, the ends shall becarefullyfiledoutsothatnoobstructiontoboreisoffered.TheendsofthepipesshallthenbethreadedconformingtotherequirementsofIS:544‐1955withpipediesand tapscarefully insuchapiecesarescrewedtogether. The tapsanddiesshallbeusedonlyforthestraighteningscrewthreadswhichhavebecomebentordamaged and shall not be used for turning of the threads so as to make themslack, as the later procedure may not result in a water tight joint. The screwthreadsofpipesandfittingsshallbeprotectedfromdamageuntiltheyarefitted.1.4 Installationofpipesintrenches:The pipes shall be painted with two coats of anti‐corrosive bit mastic paint ofapproved quality and wrapped with Hessian cloth impregnated with bitumen.The pipes shall be laid on a sand cushion layer of 75‐mm. river sand and filledwith excavated earth. The surplus earth shall be disposed off as directed. Thefilling shall be done after testing& rectifying leakages and after final passing ofworkbyEngineerInchargeatsite.When the excavation is done in rocks the bottom shall be cut deep enough topermit the pipes to be laid on a sand cushion of minimum 75 mm. In case ofbigger diameter pipes where the pressure is very high thrust blocks of cementconcrete1:2:4(1cement:2coarsesand:4gradedstoneaggregateof20nominalsize) shall be constructed on all bends to transmit the hydraulic thrustwithoutimpairing the ground and spreading it over a sufficient area, as directed by theEngineerInchargeatSite. COLOURCODEFORWATERSUPPLYPIPESColorcodeforwatersupplypipesshallbeasperstandardrequirement.Detailsasmentionedbelow.

COLORCODEFORGENERALSERVICES

SlNo

Description GroundColour

FirstColourBand

SecondColourBand

A WATER 1.0

Cooling Seagreen Frenchblue

2.0

Boilerfeed Seagreen ‐‐‐‐‐‐ ‐‐‐‐‐‐3.0

Condensate Seagreen Lightbrown ‐‐‐‐‐‐

4.0

Drinking Seagreen Frenchblue

Signalred

5.0

Treated Seagreen Lightorange ‐‐‐‐‐‐

6.0

Coldwaterfromstoragetank.

Seagreen Frenchblue Canaryyellow



1.6 TESTINGBefore any pipes are painted or covered / buried, they shall be tested to ahydrostatic pressure of one and half times theworking pressure. Pressure shallbemaintained for at least eight hourswithout an appreciable drop in pressure.Inadditiontothesectionaltestingofwatersupplypipes,thecontractorshalltestthewhole installation to the entire satisfaction of the Engineer. He shall rectifyanyleakages,failureoffittingsorvalves.1.7 RECTIFICATIONAnyleakagenoticedshallbepromptlyattendedbythecontractor.Ifrequiredthepipesandfittingsshallbereplacedtoachieveanobsolutelywatertightsystemathisowncost.1.8 DISINFECTIONOFTHEPIPENETWORKThe contractor to disinfect the entire water distribution network including thestorage tanks at his own cost. The disinfection shall be done by using residualchlorine of 0.2 ppm for a period of 2 (two) hours. The entire chlorinated pipenetwork is tobe flushedoutwith freshwaterbefore thewater supply system isputintooperationfordomesticusage.1.10EXTERNALWORKS:Thegalvanizedironpipesandfittingsshallbelaidintrenches. Thewidthsanddepthofthetrenchesfordifferentdiametersofthepipesshallbegivenasinthe table below, and shall be deep enough to have a clear cover of at least60cmoverthetopofpipes.

Dia.ofpipe Widthoftrench Depthoftrench 15mmto50mm 30cm 60cm65mm to100mm

45cm 75cm150mm 60cm 90cm

At joints the trench;width shall bewidenedwhere necessary. Thework ofexcavationandrefillingshallbedonetruetolineandgradient.Thepipes shall bepaintedwith two coats of anticorrosivebitumastic paintofapprovedqualityandfurtherwrappedwithtwocoatsofHessianclothandtiedwith G.I wire. The pipes shall be laid on a layer of 7.5cm sand and filled upto15cm above the pipes. The remaining portion of the trench shall be then filledwithexcavatedearth.Thesurplusearthshallbedisposedoffasdirected.Whentheexcavationisdoneinrockthebottomshallbecutdeepenoughtopermit thepipes tobe laidona cushionof sandminimum7.5cm. In case ofbigger diameter of pipeswhere the pressure is very high thrust blocks of



cementconcrete1:2:4(1cement:2 coarsesand: 4gradedstoneaggregateof20nominalsize)shallbeconstructedonallbendstotransmitthehydraulicthrustwithoutimpairingthegroundandspreadingitoverasufficientarea,asdirectedbythesiteengineer.IGENERAL1. ThescopeofContractforCivilWorksincludesnecessaryhydraulictestingfor water tightness/seepage as per relevant IS CODES FOR ALL WATERRETAININGSTRUCTURES.2. Allexpensestowardsthetestingincludingwater,filling,dewateringanddischargeshallbebornebytheContractorandthetestshallbecarriedouttillthe structures are proved watertight and in presence ofConsultants/Architects.3. Scope of contract for piping includes construction of necessary masonryvalve chambersmin 900 x 900wherever necessary, removable typeMS paintedcoversandextensionspindlesforvalves.4. TheentireSTPisproposedtoconstructbelowgroundlevelasperencloseddrawing.5. Makeof allpiping/Equipments/Motors/CablesandPumpsshallbe clearlystated in the offer shall be got approved by Consultant before Supply &Installation. ThedecisionofConsultant inthisregardshallbe finalandbindingonthesuccessfulContractor.6. All equipmentGAdrawings shall be submitted to Consultant for approvalprior to fabrication/ordering. The fabricatedandbrought‐outequipmentsshallbe inspected at ContractorWorks by Consultant and shall be dispatched to siteonlyafterobtainingcleardispatchinstructionsinwritingfromConsultant.7. It isobligatoryonthepartoftheintendingbiddertovisitthesiteofworkprior to submitting the offer and familiarize himself with local/site /soilconditions,availabilityofmen,MaterialsandMachineryforsuccessfulandtimelyexecutionoftheworks.NoextrashallbepaidincaseContractorfailstoascertaincorrectsiteconditionsbeforesubmittingtheoffer.8. AllMS hand railing/ladders shall be given two coats of synthetic enamelpaintoveracoatofred‐oxideprimerorapprovedmakeandshade.9. Anyotheritemnotspecificallymentionedinthistenderbutisessentialforproperand successful completion, commissioningand runningof theSTP for itscommercialutilizationisalsotobeincludedinthescopeofcontract.



J EQUIPMENTSPECIFICATIONa) MSBarScreen

Quantity : 1no.Type : Manuallycleanedwith HandrakeSize : 1000mmx600mmx900mmConstruction: InMSflatsofsize20x6,c/cnotmorethan20mm/14mmwithnecessaryMS

flat25x6stiffeners.Thewholeunitshallbegiven2coatsofepoxybasedpaintoveracoatofepoxybasedprimer.

1noMShandrailshallalsobeprovidedwithGIpiperod.

b) RawEffluentPump

Quantity : 2nos.(1working+1standby)Duty : TotransferRawEffluent fromEqualizationTanktoSBRtank.Type : Submersiblenon‐clogpumpseachtodeliver18cum/hat10mhead Grundfos,Kirloskar,STORKorequivalentmake.Motor : TEFCMotor,withIP‐55protectionandsuitablefor

400/440V,50HzA/csupplyofGrundfos,Kirloskaror siemensmake. MaterialofConstruction : BodyinCIandimpellerinBronzeAccessories : Aircockwithpriming funnel,flexiblecouplingwith guard,Baseframe,foundation boltsetc.,

c) Diffusers Fineporediffusers : Onelotof90mmdia.1000mmlong MembranesfromEDIofUSA/SCOGENmake.Coarsebubblediffusers : Onelotof90mmdia.800mmlong MaxAir/AirflexdiffusersEDIofUSA make,typeMAXAIRin PVCconstruction(forequalization Tankandtreatedeffluentsump)



d) Airblowers(1+1) : 2nos(1working+1standby)each 260m3/hr@4MWC,0.45kg/cm2

e)FilterFeedPumps

Quantity : 1working+1standbyDuty : Totransferclearwater.

Type : Horizontalcentrifugalnon‐clogopenimpeller,pumpseachto deliver10cum/hat30MheadGrundfos,Kirloskar,STORKor

equivalentmake.Motor : TEFCMotor,withIP‐55protectionandsuitablefor

400/440V,50HzA/cMake : Grundfos,Kirloskarorsiemensmake. MaterialofConstruction : BodyinCIandimpellerinBronzeAccessories : Aircockwithpriming funnel,flexiblecouplingwith guard,Baseframe,foundation boltsetc.,

f)TransferPumps

Quantity : 1working+1standbyDuty : TotransfertreatedeffluentType : Submersiblenon‐clogpumpseachto Deliver10cum/hat10M Head,Kirloskar,STORK Equivalentmake.Motor : TEFCMotor,withIP‐55 Protectionandsuitablefor 400/440V,50HZA/csupplyof Kirloakarorsiemensmake.MaterialofConstruction : BodyinCIandimpellerinBronzeAccessories : Aircockwithpriming funnel,FlexibleCouplingwith guard,Baseframe,foundation Boltsetc.

g) PressureSandandActivatedcarbonfilter Quantity : 1no.eachfilter



Flowrate : 12m3/hrh) Chlorinator Quantity : 1no.5LPH Make : ASIA‐LM1/SAFEXi) Sludgehandlingbag

Quantity : 1NoMOC : SSsuitableforsludgehandlingSparebags : 20

K DETAILSOFELECTRICALWORKS 1 No. LT Panel, cubicle type suitable for floor mounting and comprisingincoming power control switch with HRC fuses, 5 nos Ammeters Voltmeter, PhaseIndicatingLamps,MCBsandStartersforthefeedersallcomplete.Alsotobeprovidedaretwo nos. Automatic Level Controller for actuating the Raw Effluent /Treated effluent.NecessaryAutomanualSelectorSwitchesshallalsobeprovided. 3nos.localpushbuttonstartersshallalsobeprovidedneartheAeratorequipmentsandmountedinweatherproofenclosures. NecessarypowerwiringbyarmouredPVCCablesorbyPVCinsulatedwire inconduitfromLTPaneltoequipmentmotorsandinternallightingofentireDSTPPlantasshowninthedrawing. NecessaryearthingasperI.E.rules. 1nosparefeederwithMCBsuitablefor5HPshallalsobeprovidedintheLTPanel.L TEST/TRIALRUNNINGANDCOMMISSIONING TheContractorshallhavetotesteachequipmentusedfortheplantforatleast72hourscontinuous running with designed load and to the full satisfaction of Consultants. Anydefects found,hastoberectifiedbythecontractorathisowncost immediatelyandwithinreasonabletimetobedecidedbyclient. Necessary Instruments, Gauges, Labour/Supervisory Staff, Laboratory analysis etc.,aretobefurnished/providedbytheContractorfreeofanycosttoclient.M COMMISSIONING/HANDINGOVER Duringtrialrunsasdescribedabove, the Contractor shallsatisfyConsultantinallrespectsregardingthesatisfactoryqualityofeffluent,qualityofmaterials,equipmentsandworkmanshipused in the plant. Only after satisfying itself/ himself regarding the above points, client willtakeover theplantandsuchdateoftakingovershallbedeemedasdateofcommissioningforallpurposes, guarantees, andpayment termsmentioned elsewhere in this tender. Theguaranteeperioddescribedelsewhereinthetendershallstartfromthedateofcommissioning.



N GUARANTEE Theundermentionedclausesshallgovernincaseofanycontraryprovisionsgivenelsewhereinthedocument. Manufacturer'sGuarantees Themanufacturer’s guarantee for design,workmanship and performance for all bought outitemsshallbemadeavailabletotheownerandshallbevalidatleastfortheentiredefectsliabilityperiod. Intheeventoffailureofanyparticularequipmentwhichfailsmorethanthreeitemsduringtheguaranteeperiod asmentioned in clause below, the contractor shall replace at his own cost thatequipment. Manufacturer's/Contractor's guarantee, as mentioned in clause above, for suchreplacedequipmentshallalsobemadeavailabletotheOwnerandshouldbekeptatleastforoneyearfromthedateoflastreplacement. PerformanceGuarantee The Contractor shall give guarantee for a period of one year from the date of successfulcommissioning of the treatment plant against design, defective materials, workmanship,performanceandguaranteedeffluentquality.Intheeventthecommissioningoftheplantisnotpossible due to non‐availability of effluent, contractor shall be issued mechanical completioncertificate by client/consultant provided each equipment is tested satisfactorily as directed byConsultant.However,thecontractorshallhavetomaintaintheplantathisowncost,insuchacaseforaperiodforthreemonthsbeyondwhichperiod,ifheisrequiredtomaintainfurther,hewillbepaid extra atmutually agreeable rate. However, testing and commissioning of the plant shall becarried out by the Contractor during the Defects Liability Period. Any defects found in theworkmanship,materialsorperformanceof theplant shall bemadegoodby theContractor athisownexpensewithinthetimespecifiedbyclient/consultant. Forthispurpose,theretentionamountwillbeasfollows: 5% of the total value of Contract shall be retained. The Successful Tenderer as per generalconditionsofcontractshallberetainedtill thecompletionofsatisfactorycommissioningasstatedabove.Thecontractorathisownexpenseshallstartandcommission,theplantandprovethatitisgivingsatisfactoryserviceanddesiredcharacteristicofthetreatedeffluent,fortwomonthsbeforehandingovertheplanttotheOwner.Duringthis,thecontractorshalltraintheOwner’soperationalstallwithoutanyextracosttotheOwner.TheContractorshallalsohavetoguaranteethequalityofthetreatedfinaleffluenttomeetthespecificationmentionedalready.Incasethequalityoftreatedeffluentvariesfromwhatisrequired,thecontractorshallrectifytheplantatnoextracostsoastoachieve therequisite performance guarantee andsatisfactorycommissioningof theplant to theclient/Consultant.InCasethecontractorfailstoachieveanyoftheaforesaidguaranteeshewillbepenalizedbyanamountupto10%(tenpercent)ofthetotalcontractvalue.Forthispurposeanymoneyduetothecontractorshallbeforfeitedandadjustedagainstsuchpenalty. Thecontractorshallfurnishthefiguresforaveragedailyconsumptionofnutrients/Chemicals,ifany. Alltheaboveguaranteeswillbebasedoncollectionandanalysisofsamplesasmentionedinclausebelow.



OxygenationCapacityofDiffusers. Thecontractor,ifdirectedbyConsultant,shallathisowncostprovetheOxygenationcapacityguaranteedbyhimforthediffusersprovidedbyconductingOxygenationcapacitytestsontheunitbyanystandardandinternationallyrecognizedmethodtobeapprovedbytheConsultants.O MECHANICALGUARANTEES

TheContractorshallguaranteeforaperiodofoneyearforthefailureofanyparticularpartoftheequipment.Intheeventoffailureofanyparticularpartoftheequipmentmorethanthreetimesduringtheguaranteeperiod, itshallbereplacedby theContractor. Incase it is foundthattheabovementionedfailureisduetosomeotherconnectedpartoftheequipment,thatpartshallalsoberectifiedorreplacedbythecontractortoavoidsuchfailuresinthefuture.The guarantee for such replaced parts shall be extended by one year from the date of lastreplacement.

P COLLECTIONANDANALYSISOFSAMPLES

The guaranteed effluent shall be based on complete analysis of samples collected afterstabilizationoftheplant.

Q ANNUALMAINTENANCE

Thecontractorshall include in theoffer formaintaining the treatmentplant includingall theconsumables etc., qualified personnel shall be posted on the site on shift basis, to take thesampling and carryout the tests. A complete record has to be maintained for all the testscarriedoutatregularintervals.Oneoperatorpershiftandonesupervisorduringgeneralshiftbasedon2shifts/dayshallbeposted. The senior chemist of the contracting firm shall visit at least once a week formonitoringplantoperation.Min.2nos.RawEffluentand2nos.TreatedEffluentsamplespermonthshallbecollectedandgotanalyzedat theBoardapprovedLaboratory.AlsooneSeniorMechanicalTechnicianshallvisittheplantforinspectionandsupervisionofmaintenanceofallequipments.



R.LISTOFMAKESFORSTP

SLNO DESCRIPTION

RECOMMENDEDMAKES

1 BARSCREEN CONTRACTORSMAKE

2 RAWEFFLUENTPUMPS(SUBMERSIBLE)

GRUNDFOS/KIRLOSKAR/JHONSON

3 COARSEBUBBLEDIFFUSER(90ØX800MML)

EDIOFUSA/MAXAIR/SCOGEN

4 FINEPOREDIFFUSER(90ØX800MML)

EDIOFUSA/SCOGEN

5 AIRBLOWERS KAYINTERNATIONAL/EVEREST6 FILTERFEEDPUMPS GRUNDFOS/KIRLOSKAR/JHONSON7 CHLORINATOR ASIALMI/SAFEX8 PRESSURESANDFILTER CONTRACTORSMAKE9 ACTIVATEDCARBONFILTER CONTRACTORSMAKE10 LTPANEL L&T11 SINGLESCREWDOUBLESTAGE

PUMPS

HYDROPROKAV/ALPHA

12 CABLES FINOLEX



DATASHEETCHEMICALDOSINGUNITWITHMETERINGPUMPTANK:CapacityinLitre : Diameter : Height : Designflow : Chemicalsrequiredat : Designflowrate

: Holdingperiod : DiaofInlet : DiaofOutlet : DiaofDrain

: MATERIALOFCONSTRUCTION Tank : Valves : Piping : METERINGPUMP Make : ModelNo : Constructiondetail : DutyConditions : AccessoriesIncludedWiththepump

: Note:1) AllinformationtobefilledbySupplier2) ThisDataSheettobefilledforeachunitseparately



DATASHEETSEWAGETRANSFERPUMPS Make : Model : Type : Flowratelts/Sec : Dischargepressure : Material : Casing : Impeller : Seal : Motor : Type : Make :

Drive

: Rating :

RPM : Enclosure : ClassofInsulation :



DATASHEETFILTERFEEDPUMPS Make : Model : Type : Flowratelts/Sec : Dischargepressure : Material : Casing : Impeller : Seal : Motor : Type : Make :

Drive

: Rating :




DATASHEETTRANSFERPUMPS Make : Model : Type : Flowratelts/Sec : Dischargepressure : Material : Casing : Impeller : Seal : Motor : Type : Make :

Drive

: Rating :




DATASHEETAIRBLOWERS

BlowerData Make : Model : Services : Fluidhandled Type : Flowratem3/hr : Dischargepressure : Differentialpressure

: OperatingSpeed : BHPatDutyPoint : Staticweightwithaccessories : Material : Casing : Sealing : RecommendedMotor : FrameSize : Opening : MaterialofConstruction Main Casing ,Side Plates &Rotor

: Shafts : Gears : BaseFrame :



DATASHEET

FINEBUBBLEDIFFUSERSMake : Shapeofthediffuser : Size : Dia90mmx1000mmLongBubbleSize : Typeofdiffuser : MOCofMembrane : MOCofDiffuserInternals : MOCofmembraneclips : MOCofdiffusermaleadopter : Operating temperature of themembrane

: TemperatureTolerance : Effectivesurfaceareaofmembraneperdiffuser

:

Optimumairthroughputrate : Pressure :

COARSEBUBBLEDIFFUSERSMake : Shapeofthediffuser : Size : Dia90mmx800mmLongBubbleSize : TypeofMembrane : MOCofMembrane : MOCofDiffuserInternals : Effectivesurfaceareaofmembraneperdiffuser

: Airflowperdiffuser : Pressure :



DATASHEET

DATATOBEFURNISHEDBYTHECONTRACTORAFTERAWARDOFCONTRACTAND`BEFORE’INSTALLATION

1. QualityAssurancePlan(QAP)2. Detaileddimensionedgeneralarrangementdrawingofpumpanddriver.3. Foundationdrawingofpumpanddriverwithstaticanddynamic loads,detailsof fixing,grouting

andallrelevantdatarequiredfordesignoffoundation4. Cross‐sectiondrawingofthepumpwithcompletepartlist,materialsofconstructionandrelevant

standardsforeachpart5. PumpperformancecurvesflowrateVshead,BKW,efficiency,NPSHRfromzeroflowtomaximum

flowandtorque‐speedcurve6. Schemeforpumpsealing,lubricationandcooling7. Driverdimensionaldrawing8. Surfacepreparationandpaintingprocedures9. Catalogues,datasheetsanddrawingsforinstruments10. Installation,operationandmaintenancemanual11. IsolationpadsandSSorHotdipgalvanizedfoundationboltsprovidedbytheContractor.12. Cork‐rubbermakemetallicbellowsshallbeprovidedatsuctionanddischarge.13. Pressuregaugeswithneedlevalveprovidedatsuctionanddischargelines.14. Allaccessoriesprovidedtocompletethepumpinstallation.



DATASHEET

CHECKLISTANDPERFORMANCETESTDATATOBEPROVIDEDAFTERINSTALLATIONNo Description Unit Time Date Remarks 10.00 12.00 14.00

16.00

18.00

20.00

1. Suctionpressure Kg/cm2 2. Dischargepressure Kg/cm2 3. Waterflowrate M3/hr 4. Current Amps 5. Bed plate levels andalignmentchecks

6. Hydraulic test forcasing at 1.5 timesdesignpressure

7. Noise level frompump1.8mdB

8. DischargeVshead Mtr 9. Discharge Vsefficiency 10. DischargeVsBkW RunTestshallbeconductedonthefollowingPumps.

1. RawEffluentpumps.

2. Filterfeedpumps.

3. TransferPumps



CHECKLISTANDPERFORMANCETESTDATATOBEPROVIDEDAFTERINSTALLATIONA RAWWASTEWATER(SEWAGE) Quantity:200KLD B TREATEDWASTEWATER(SEWAGE)QUALITY

pH : BOD5@20ºC : COD : TSS : Oil&Grease :

pH : BOD5@20ºC : COD : E‐Coli : Turbidity : Oil&Grease : Residualchlorine :

Project: NCSCM STP BOQ

PART DESCRIPTIONOFWORK AMOUNTI STPELECTROMECHANICALSII STPPANELIII STATUTORYAPPROVALIV OPERATIONANDMAINTATENANCE

Note:ProvidedetailsofTaxesincluded

McDBuiltEnvironmentResearchLaboratoryPvtLtdABSTRACTFORSTPBOQFORNCSCM

TOTAL

GrandTotal

AddVat@_____%on_____%AddServiceTax@_____%on______%

ARCHITECT: FLYING ELEPHANT STUDIO 1 CONSULTANT: Mc D BERL


SLNO DESCRIPTIONOFWORK TOTALQUANTITY UNIT RATE(Rs.) AMOUNT(Rs.)

Note:AllQuotedEquipmentsandPumpsareinclusiveofalltaxesI STPFORELECTROMECHANICALEQUIPMENTS

Design, Engineering, and providing all equipment /machinary at site,installation and commissioning of equipments/ electricals/ pipingexclusiveofalltypesoftaxesanddutiesasdescribedinspecificaation.Theapproximatecapacityofsewagetreatementplantis200KLD

1 BARSCREENSupplying, installing, testing and commissioning of bar screenconsisting of 1no. of fine screen and one number coarse shall beprovided in front of the intake works, so as to exclude the large sizedparticles with associated set of guide angles in MS flat of 6.0 mmthick and 50 mm wide kept inclined at 45 degree to the horizontal at40mm c/c with one no. hand rack in GI. bar rack fabricated from SS‐304 bars to the width of the screen chamber with a racking arm formanualoperation.Size:1000x600 1 No.

2 RAWSEWAGEPUMPSupply, installation, testing & commissioning of HorizontalCentrifugal / Vertical Submersible sewage pumps with solid handlingcapacity up to 18 ‐ 20 mm with CI casing & CI impeller complete withall accessories, motor of required capacity. The pumps will becomplete with Delivery header with, pressure gauge on delivery linewith isolation level controller (with wiring) to control the level ofSump automatically . Pumps & Other associated works & accessories,shallhavefollowingduty:Make:Kirloskar/JohnsonDuty:18KLH@10Mhead.(2W+1S) 3 No.

3 COARSEBUBBLEDIFFUSER 12 NoSupply, installation, testing & commissioning of adequate capacitiesof coarse air diffusers in Equalization tank, Treatment tank, Sludgeholding tank & other associated works & accessories etc.complete ofsize 80mm x 800 mm Wide band diffusers of Scogen / EquivalentMake

4 FINEBUBBLEDIFFUSER 20 NoSupply, installation, testing & commissioning of adequate capacitiesof fine pore diffusers for SBR Reactors & other associated works &accessories etc.complete of size 90mm x 1000mm long ‐ TubularMemabraneTypeDiffusers

5 AIRBLOWER 2 NoSupply, installation, testing & commissioning of Twin type rotary airblowers for treatment tanks for the following capacity and pressurepressure through"V" belt or directly coupled through flexiblecoupling to a TEFC motor of suitable H.P suitable for 415 ± 10%volts, 3 phase, 50 cycles A/C supply. The blower & motor will becomplete with base frame, header, valves, pressure gauge & otherassociated works & accessories etc.complete of Kay InternationalMakeDuty:260M3/[email protected]/CM2

ADVANCEDSEWAGETREATMENTPLANT‐200KLD

McDBuiltEnvironmentResearchLaboratoryPvtLtdBILLOFQUANTITIESFORSTPFORNCSCM



6 SLUDGETRANSFERPUMP 1 No.Supply, installation, testing and commissioning of Submersible /Centrifugal sludge transfer pump capable of solid handing upto25mm as per manufacture specifications & other associated works &accessoriesetc.complete.Make:Johnson/ApprovedEquivalentmakeDuty:10KLH@10Mhead.(1W+1S)

7 FILTERFEEDPUMPSupply, installation, testing and commissioning of centrifugal selfpriming filter feed pump & other associated works & accessories & aspermanufacturespecificationsbelowDuty:10KLH@30Mhead. 2 No.

8 CHLORINATORSupply, installation, testing and commissioning of electronicmetering type of Chlorine dosing pump & other associated works &accessoriesetc.complete.Make:E‐Dose 1 No.

9 PRESSURESANDFILTERSupply, installation, testing and commissioning of Pressure Sandfilter, of MS fabrication suitable for a loading rate of 12cum/hr/sqm&otherassociatedworks&accessoriesetc.complete.Size:1000mmdia,HOS1250mm 1 No.

10 ACTIVATEDCARBONFILTERSupply, installation, testing and commissioning of Activated Carbonfilter, of MS fabrication suitable for a loading rate of 12cum/hr/sqm&otherassociatedworks&accessoriesetc.complete.Size:1000mmdia,Hos1250mm 1 No.

11 SLUDGEHANDLING‐BAGFILTERSupplying, fixing and commissioning of Bag Filter made of SS suitablefor sludge handling, complete with all accessories and 20 spare bagssuitablefor2Bagsystem 1 No.

12 DECANTMECHANISM 1 NoSupply , installation, testing and commissioning of 100 NB PLCControlledautomaticdecantmechanism

13 INTERUNITPIPINGSupply,and fixing Plant Piping with CPVC / UPVC 10 Kg/sqcm pipeswith fittings and approved make valves, gauges, instrumentation etc.,for all plumbing lines and MS B Class pipeline with fittings for BlowerAirLines 1 Lot

TOTAL‐I



II STPPANELSupply, installation, testing and commissioning of front operated,front access, totally enclosed, free standing, dust and vermin proofPanel (Indoor type) with IP 54 ingress protection, fabricated from 2mm thick CRCA sheets, with hinged, gasketted and lockable doorsincluding the cost of interconnections, copper crimping lugs, brassglands, bonding to earth and painting, suitable for use at 415 volts, 3phase 4 wire 50 Hz system with 16 KA rupturing capacity at 415voltscomplete.

1 Electrical Motor Control Centre shall be suitable for all equipmentsconnectedtotheSTPwith3Nosofsparefeeders 1 Set

2 CABLESANDCABLETERMINATIONSInterUnitCablingInter unit cabling for all equipments with necessary armoured/unarmoured cables with necessary termination lugs, glands etccomplete 1 Lot

TOTAL‐IIIII STATUTORYAPPROVAL1 Commissioning and obtaining the statutory approvals from the

concerned 1 LotTOTAL‐III

IV OPERATIONANDMAINTATENANCE1 Operation and maintenance with own staff and consumables as

specifiedinthetechnicalspecifications 1 YearTOTAL‐IV


Cover Page04 TECHNICAL SPECIFICATIONS-STP06- BOQ summary07- BOQ - 200 KLD SBR BOQ_NCSCM09- DRAWING

volume 2 of tender documents · 2019. 6. 24. · the tender is invited on turnkey basis for design,...

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