Airports Authority Of India has published Tender For Work Contract For Repair And Maintenance Of Stp/Etp And Wtp And Operation Of Stp/Etp At B.M. Airport Ranchi For The Year 2024- 2026.. Submission Date for this Tender is 27-04-2024. Water Treatment Plant Tenders in ranchi Jharkhand. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | SH-I: Repair Works ( STP/ETP/WTP) Supply & Replacement of outdated filter media in Activated Carbon filter located at Sewage treatment plant including removal of old outdated media, rinse-cleaning, refilling of different gradient media (Pebbles,Gravels, sand, silex,Granular Activated Carbon) in layers as per standard design, technical specifications and disposal of unserviceable media away from Ranchi airport complete as per thedirection of Engineer-in-Charge etc as required. Activated Carbon Filter (13.75 M3/Hr): 1100mm Dia X 1100mm HOS |
| 2 | SH-I: Repair Works ( STP/ETP/WTP) Supply & Replacement of outdated filter media in Multi-Media filter located at Sewage treatment plant including removal of old outdated media, rinse-cleaning, refilling of different gradient media (Pebbles,Gravels, Treated sand, anthracite) in layers as per standard design, technical specifications and disposal of unserviceable media away from Ranchi airport complete as per the direction of Engineer-in Charge etc as required. Multi-Media filter (13.75 M3/Hr): 1100mm Dia X 1100mm HOS |
| 3 | SH-I: Repair Works ( STP/ETP/WTP) Supply & Replacement of outdated filter media in Pressure Sand Filter located at Water Treatment Plant including removal of old outdated media, rinse-cleaning,refilling of different gradient media (Pebbles, Gravels, silex,sand) in layers as per standard design technical specifications and disposal of unserviceable media away from Ranchi airport complete as per the direction of Engineer-in-Charge etc as required. Pressure Sand Filter (12 M3/Hr): 1200mm Dia X 1200mm HOS |
| 4 | SH-I: Repair Works ( STP/ETP/WTP) Supply & Replacement of outdated filter media in Iron Remover Filter located at Water Treatment Plant including removal of old outdated media, rinse-cleaning,refilling of different gradient media (Pebbles, Gravels, Iron Remover media) in layers as per standard design technical specifications and disposal of unserviceable media away from Ranchi airport complete as per the direction of Engineer-in-Charge etc as required. Iron Remover Filter (12 M3/Hr): 1200mm Dia X 1200mm HOS |
| 5 | SH-I: Repair Works ( STP/ETP/WTP) Supply & Replacement including of outdated Softener Resin media (Ion exchange 225 Na only) in Softner Plant located at Sewage Treatment Plant including removal of old outdated media, rinse-cleaning,refilling of different gradient media (Pebbles, Gravels, Resin media) in layers as per standard design technical specifications and disposal of unserviceable media away from Ranchi airport complete as per the direction of Engineer-in-Charge etc as required. Softner Filter (08 M3/Hr): 650mm Dia X 1300mm HOS |
| 6 | SH-I: Repair Works ( STP/ETP/WTP) Providing, fixing, testing & commissioning of Tube Settler Media including replacement and disposal of existing old outdated tube settler media away from Ranchi airport complete as per the direction of Engineer-in-Charge etc as required. The Tube Settler media shall be with following specification: Shape: Chevron-Unequal HexagonSquare Thickness: 1mm +/- 0.1mm Plan settling Area (at 60 degrees angle slope): 11-13 m2/m3 Fitting: Tongue and Groove Tube Cross sectional Area : 120mm x 44mm Maximum Continuous Operating Temperature : 55°C MOC : PVC, UV Stabilized Colour: Black Vertical Ht. : 1000 mm, Make- Marvellous Plastic/ MM Aqua/Tecpro or equivalent |
| 7 | SH-I: Repair Works ( STP/ETP/WTP) Supply & Replacement of existing 100mm Dia Air Supply Pipeline located at outlet of air blowers including dismantling of existing pipeline, replacement of flexible bellows, NRV, Butterfly valve, Flanges, gaskets, nuts, bolts, washer, welding of all accessories with new pipeline, threading, re-alignment, installation, leak testing and commissioning and painting the entire parts with approved colour to give even shade etc complete as required. (Note: Pipeline to be replaced alongwith all accessories is of approx. 75cm Length) |
| 8 | SH-I: Repair Works ( STP/ETP/WTP) Mechanised Cleaning & de-silting of Aeration Tank of size 4.71m (Length) X 4.55m (Width) X 4.8m (Height) using compressor and associated equipment including dosing of stabaliser chemical for dilution of sludge and disposal of left out sludges away from Airport premises etc., complete with sundries, lighting, blower fan, speciliased labour with protective gear etc., complete as required. |
| 9 | SH-I: Repair Works ( STP/ETP/WTP) Supply and replacement of existing Air Piping with Stainless Steel 304 Pipeline of 65mm dia complete with tees, crosses, plugs, sockets, elbows,reducers,supports & clamps, puddle flanges etc including cutting, welding, grinding, buffing, polishing, hoisting, fixing securely to the concrete surface, making openings for Tubular diffusers and dismantling of existing Air pipeline and shifting to AAI Stores, leak testing complete as required. |
| 10 | SH-I: Repair Works ( STP/ETP/WTP) Supply,Replacement & fixing of New Fine Bubble Tubular Diffuser for the aeration tank unit including fixing of diffuser to Air pipe header inside tank. Diffuser shall be self-cleaning, high transfer efficiency, low maintenance, non-buoyant type.Diffuser hold down assemblies shall consist of a retainer bolt, a matching washer and gasket. The Fine Bubble diffuser shall be as per following specification: Size of diffuser: 63mm dia x 1000mm long or as per sample diffusers available on site MOC of diffuser: EPDM MAKE: Bobkay / Airflex /Scogen or equivalent |
| 11 | SH-I: Repair Works ( STP/ETP/WTP) Supply and erection of 50mm dia UPVC Pipe of preffered make complete with UPVC fittings such as tees, crosses, plugs, sockets, elbows, reducers, unions, flanges, sleeve pieces, check nuts, gaskets, nut, bolts , UPVC adhesives & other accessories etc for making necessary connection to existing MS pipe complete including clamps,supports etc as required and as per direction of Engineer Incharge (Note: All UPVC fittings for necessary pipeline connections are to be arranged by the Contractor) |
| 12 | SH-I: Repair Works ( STP/ETP/WTP) Supplying, Fixing, Testing and Commissioning of 50mm dia Butterfly Valve (Manual) with CI body, SS disc, SS stem, nitrile/EPDM rubber seal, ‘O’- ring & PN 16 pressure rating alongwith bolt, nut, washer as per following sizes etc complete as required. (Including flanges). |
| 13 | SH-I: Repair Works ( STP/ETP/WTP) Supply and Installation of various Mild Steel structure fabricated using single section MS Channel/angle/flat/bar etc including cutting, welding, drilling, fixing in position using appropriate fasteners, grinding, painting with approved steel primer and two coats enamel paint etc. complete as required. |
| 14 | SH-I: Repair Works ( STP/ETP/WTP) Supply and Installation of Analog Flanged Water Meter & 02 Nos Slipon Weldable Flanges of 40 mm including cutting of existing 40mm pipeline,welding of 02 Nos Flanges, fixing of water meter in position using nut-bolts,gaskets etc complete as required (At outlet of STP) |
| 15 | SH-I: Repair Works ( STP/ETP/WTP) Supply and Installation of Analog Flanged Water Meter & 02 Nos Slipon Weldable Flanges of 100 mm including cutting of existing 100mm pipeline,welding of 02 Nos Flanges, fixing of water meter in position using nut-bolts,gaskets etc complete as required (At Inlet of STP) |
| 16 | SH-I: Repair Works ( STP/ETP/WTP) Supply of non-clogging self-priming Sewage submersible pumpset having Cast Iron casing & SS impeller suitable for operation on 415V/230V, 50Hz AC Power supply with discharge capacity of 18cum/Hr @ 10 Mtr head, particle handling size of min 25mm, non-sealed construction, Insulation Class F, motor of required capacity including required SS rope for lifting the pump complete as per Technical Specifications etc as required. |
| 17 | SH-I: Repair Works ( STP/ETP/WTP) SITC of suitable Panel Board starter made of MS Sheet suitable to operate with 415 V, 50 Hz, 3 phase AC power supply for the above mentioned sewage submersible pumpset etc as required. |
| 18 | SH-I: Repair Works ( STP/ETP/WTP) Brush/Spray Painting of various metal surfaces after cleaning/scrapping the surface with emery paper and applying 02 coat anti-corrosive metal red-oxide primer & 2 coats Enamel paint of approved brand and colour to give an even shade complete etc as required (Paint Colour to be decided by Engineer-In-Charge). |
| 19 | SH-I: Repair Works ( STP/ETP/WTP) Supply and replacement of existing 100mm dia pressure guages, 0-10 kg/cm2 with isolation valve as per AAI Preffered make & specification including welding of GI nipple/threading and necessary connection as required & as per direction of Engineer-In-Charge. |
| 20 | SH-I: Repair Works ( STP/ETP/WTP) Supply and Replacement of existing Semi-automatic Multiport Valve with Manual Mutiport Valve-Side mounted (40 Nominal Bore/5 kg/cm2) including dismantling of old valve and installation of new Multiport valve and interconnection with existing pipeline with reducer/expander/coupler, adhesive etc complete as required. |
| 21 | SH-I: Repair Works ( STP/ETP/WTP) Repair of following Kay Make twin-lobe air blowers including dismantling from site, transportation to workshop, repair & servicing at workshop, replacement of defective parts (roller bearing, rings, O-ring, oil seal, gasket, shaft, bearing collar, suction air filter, pressure relief valve, NRV, belt pulley with machining, bolts, nuts, washer etc) re alignment, installation, testing and commissioning etc complete as required (As &when required). |
| 22 | 45 M3/Hr |
| 23 | SH-I: Repair Works ( STP/ETP/WTP) Supply and Replacement of existing V-Belt of Air Blower loacted at STP (Similar to Fenner C75 Poly-F Plus Classical Wrapped V Belt) |
| 24 | SH-I: Repair Works ( STP/ETP/WTP) Dismantling, overhauling and servicing of all type of centrifugal pumpsets including replacement of pump spares (such as impeller, Gland/ mechanical Seal, Gland packing, set of bearings, shaft sleeve, terminal board, terminal box, gasket, liquid reflector, impeller lock nut, cooling fan etc) re-assembling, painting, re-installing the same, testing and commissioning etc., complete as required. (Note:- The dismantled material belongs to the contractor). |
| 25 | Upto 2 HP |
| 26 | Above 2HP upto 5HP |
| 27 | SH-I: Repair Works ( STP/ETP/WTP) Dismantling the existing centrifugal pumpset of following capacity including rewinding, servicing, replacement of motor spares (such as bearings, cooling fan, Terminal Board, terminal box with top), rebate forwound out copper and re-installing the same etc. as required. (Note:- The dismantled material belongs to the contractor). |
| 28 | Upto 2 HP |
| 29 | Above 2HP upto 5HP |
| 30 | SH-I: Repair Works ( STP/ETP/WTP) Dismantling, lifting, lowering, painting and re-installation of existing sewage submersible pumpset of following capacity including servicing, replacement of all pump spares (such as Impeller, Mechanical seal, Bearings, Set of ‘O’ rings, Oil seal, Oil for seal cooling etc.,) and Testing, Commissioning etc complete as required. (Note:- The dismantled material belongs to the contractor). |
| 31 | Upto 2 HP |
| 32 | Above 2HP upto 5HP |
| 33 | SH-I: Repair Works ( STP/ETP/WTP) Dismantling, lifting, lowering, painting, rewinding and re-installation of existing sewage submersible pumpset motor of following capacity, including replacement of motor spares (if any required), rebate for wound out copper and Testing, Commissioning etc complete as required. (Note:- The dismantled material belongs to the contractor). |
| 34 | Upto 2 HP |
| 35 | Above 2HP upto 5HP |
| 36 | SH-I: Repair Works ( STP/ETP/WTP) Dismantling, overhauling and servicing of all type of Hydro pneumatic System (HPS) vertically mounted centrifugal pump sets (Wilo Make) including replacement of pump spares (such as impeller,shaft seal, "O" ring, Head spring, bearings etc) re-assembling, painting, re-installing the same, testing and commissioning etc., complete as required. (Note:- The dismantled material belongs to the contractor). |
| 37 | 2.5 HP |
| 38 | 5.5 HP |
| 39 | SH-I: Repair Works ( STP/ETP/WTP) Dismantling all type of Hydro-pneumatic System (HPS) vertically mounted centrifugal pump sets(Wilo Make) including rewinding, servicing, replacement of motor spares (such as bearings, cooling fan, Terminal Board, terminal box with top), rebate for wound out copper and re-installing the same etc. as required. (Note:- The dismantled material belongs to the contractor) |
| 40 | 2.5 HP |
| 41 | 5.5 HP |
| 42 | SH-I: Repair Works ( STP/ETP/WTP) Rewinding of following Capacity Blower motor including dismantling from site, transportation to workshop, rewinding, repair & servicing at workshop, replacement of defective parts (if any),rebate for wound out copper , re-alignment with existing Blower, installation, testing and commissioning etc complete as required (As &when required). (Note:- The dismantled material belongs to the contractor). |
| 43 | 20HP motor |
| 44 | 3HP motor |
| 45 | SH-I: Repair Works ( STP/ETP/WTP) SITC of Stainless Steel Perforated , Corrugated Bar Screen with suitable lifting arrangement ( Size: 2000 mm X 750 mm approx) |
| 46 | SH-II: (Supply of Spare & Chemicals etc) Supply of following chemicals for STP/ETP/WTP to be supplied as and when required as per site requirement. |
| 47 | Industrial Salt (For recharging softner) |
| 48 | Poly-electrolyte (For Dosing in clarifier Tank) |
| 49 | Bio-culture for STP |
| 50 | Sodium Hypo-Chlorite 6% concentration |
| 51 | Alum |
| 52 | Lime |
| 53 | Gear oil for Air-compressor (As per key International Air Compressor equivalent to Veedol Apcot 220) |
| 54 | SH-II: (Supply of Spare & Chemicals etc) Supply of following materials/accessories for carrying out smooth operation and maintenance as per site requirement |
| 55 | PVC Spiral Ribbed Flexible Green Hose-4 inch |
| 56 | PVC Spiral Ribbed Flexible Green Hose-3 inch |
| 57 | PVC Spiral Ribbed Flexible Green Hose-2 inch |
| 58 | Fire Hose-4 inch |
| 59 | Fire Hose-3 inch |
| 60 | Fire Hose-2 inch |
| 61 | Stainless Steel Hose Clamp-4 inch |
| 62 | Stainless Steel Hose Clamp-3 inch |
| 63 | Stainless Steel Hose Clamp-2 inch |
| 64 | Stainless Steel Pin Type Electrical Panel Lock |
| 65 | Cylindrical Air Blower Suction Filter (Dia-280mm X Length-230 mm) |
| 66 | Multiport Valve-Side Mounted (40 Nominal Bore/5 kg/cm2) |
| 67 | Teflon tape 12Mtre Length X 12mm width X 0.1mm Thickness |
| 68 | HRC Fuse 40Amps (Make: Siemens,Model No. 3NE4 102) |
| 69 | NRV:MOC-Gun Metal of approved quality (screwed end) :40mm |
| 70 | NRV:MOC-Gun Metal of approved quality (screwed end) :50mm |
| 71 | NRV wafer type:Body CI, disc SS, Seat:Nitrile/EPDM PN-16: 40mm |
| 72 | NRV wafer type:Body CI, disc SS, Seat:Nitrile/EPDM PN-16: 50mm |
| 73 | SH-II: (Supply of Spare & Chemicals etc) Supply of LED indication lamps of 22.5mm dia, 7 LED integral type of following colour suitable for operating on 220/240V AC, 50 Hz., single phase power supply as required (Make: SIEMENS/ SCHENIDER/PRECIFINE / L&T) |
| 74 | RED |
| 75 | YELLOW |
| 76 | BLUE |
| 77 | GREEN |
| 78 | AMBER (Orange) |
| 79 | SH-II: (Supply of Spare & Chemicals etc) Supply of PVC insulated and PVC Sheathed Flat Industrial cable for Submersible Pump motors, 1100 Volt, conforming to IS:694 etc completeas required. |
| 80 | 2.5 Sqmm X 3 Core Flat cable |
| 81 | 4 Sqmm X 3 Core Flat cable |
| 82 | SH-II: (Supply of Spare & Chemicals etc) Three Pole Contactors for DOL/Star-Delta Starter as per site requirement |
| 83 | Upto 3HP |
| 84 | Above 3HP upto 5.5HP |
| 85 | SH-II: (Supply of Spare & Chemicals etc) Supply of PPE kit for the workmen deployed at STP |
| 86 | Porotective work wear (Similar to Karam PW1101 & PW2101 or equivalent) |
| 87 | Hand Gloves (Similar to Karam HS-41 or equivalent) |
| 88 | Eyegear (Similar to Karam ES005 or equivalent) |
| 89 | Mask (Similar to Karam RFH 11+ or equivalent) |
| 90 | SH-III: (O & M ) Operation and maintenance services (preventive & breakdown) of STP (225 Cum/Day) & ETP (275 Cum/Day) of different capacity comprising of all machinery equipment installed in STP/ ETP i/c bar screen chambers, pumps, air compressors, ACF & MMF filters, softeners, hydropneumatic system, electrical panel and all accessories etc. Job also includes to provide the adequate manpower services for operation in shift basis as per special condition and technical specification round the clock including Sundays and holidays. The job is also including preventive maintenance of all electro-mechanical equipment by experienced personnel as and when necessary and as per the direcion of EIC. (Spares will be provided by AAI) |
| 91 | For first year |
| 92 | For second year |
| 93 | SH-IV: (Water testing parameters) Testing of following sewage samples from existing STP at State/Central/Govt accredited Laboratory every month and submit the original analysis test report to Engineer-In-Charge etc complete as required. |
| 94 | PH Test (Monthly for STP Inlet and Outlet) |
| 95 | BOD Tests (Monthly for STP Inlet and Outlet) |
| 96 | COD Tests (Monthly for STP Inlet and Outlet) |
| 97 | Suspended Solids Tests (Monthly for STP Inlet and Outlet) |
| 98 | Total dissolved solid (Monthly for STP Inlet and Outlet) |
| 99 | Oil and Grease (Monthly for STP Inlet and Outlet) |
| 100 | MLSS (Mixed Liquor Suspended Solids) test (Once in a Fortnight for Aeration Tank) |
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