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| 1 | M&L for rplacement of dual fillter media from the Anthracite type, self supporitng MS tank by Openingthe manhole cover, removing the existing unserviceable filter media, cleaning the inner surfaces with caustic soda to remove all dirt, mud etc., scrapping and painting the inner surface of the tank with two coats of food grade enamenl paint and supply and fillingfilter media of grading as given below and as recommendedby CPHEEO or anyother standrads complete including renewal of rusted / corroded bolts, nuts, washers, 8mm thick top gasket etc. complete and refixing the manhole cover and testing the DM filter for the satisfactory performance complete all as directed by the engineer-in-charge: (a) Fresh Sand (obtained from river bed) of size(10*2) mm and coefficient of uniformity as approved filling in layers in the Filter Bed complete(b) Fresh sand (obtained from River bed) of size (16x3)mm and coefficient of uniformity as approved filling in laters in the Filter Bed complete(c) Fresh graded gravels of size 40 mm to 50 mm as approved , filling in layers in the Filter Bed complete(d) Fresh graded gravel of size 12mm to 20 mm as approved, filling in layers in the filter bed complete(e) Fresh graded gravel of size 6mm to 12 mm as approved, filling in layers in the filter bed complete(f) Fresh graded gravel of size 3.125mm to 6 mm as approved, filling in layers in the filter bed complete (g) Fresh graded gravel of size 3.125 to 1.562mm as approved, filling in layers in the filter bed, complete (h) Fresh activated Carbon of 1000 Iodine value. |
| 2 | M&L for rplacement of dual fillter media from the Activated Carbon Filter, vertical,self supporitng MS tank by Openingthe manhole cover, removing the existing unserviceable filter media, cleaning the inner surfaces with caustic soda to remove all dirt, mud etc., scrapping and painting the inner surface of the tank with two coats of food grade enamenl paint and supply and fillingfilter media of grading as given below and as recommendedby CPHEEO or anyother standrads complete including renewal of rusted / corroded bolts, nuts, washers, 8mm thick top gasket etc. complete and refixing the manhole cover and testing the DM filter for the satisfactory performance complete all as directed by the engineer-in-charge: (a) Fresh Sand (obtained from river bed) of size(10*2) mm and coefficient of uniformity as approved filling in layers in the Filter Bed complete(b) Fresh sand (obtained from River bed) of size (16x3)mm and coefficient of uniformity as approved filling in layers in the Filter Bed complete(c) Fresh graded gravels of size 40 mm to 50 mm as approved , filling in layers in the Filter Bed complete(d) Fresh graded gravel of size 12mm to 20 mm as approved, filling in layers in the filter bed complete (e) Fresh graded gravel of size 6mm to 12 mm as approved, filling in layers in the filter bed complete (f) Fresh graded gravel of size 3.125mm to 6 mm as approved, filling in layers in the filter bed complete (g) Fresh graded gravel of size 3.125 to 1.562mm as approved, filling in layers in the filter bed, complete (h) Fresh activated Carbon of 1000 Iodine value. |
| 3 | Supply and replace internal tube settler media in hexagonal virgin PVC sheets with tongue and groove arrangemnt type, plain setting area at 55° angle having minimum specific area of 11 sq.m/cum, length of media 0.75m complete all as specified and as per direction of Engineer-in-charge. |
| 4 | Supply and replace fluidized MBBR bio media made of virgin PP UV stabilized material with minimum effective specifice surface area of 400m²/m³, self supporting cylindrical shaped structure with external fins, specific gravity0.9-0.95 gms/cm³ for enhancing dwelling space for bacterial growth installed in aeration tank as required complete all as specified and as directed. Supply and replace fluidized MBBR bio media made of virgin PP UV stabilized material with minimum effective specific surface area of400m²/m³,self supporting cylindrical shaped structure with esternal fins, specific gravity 0.9-0.95 gms/cm³ for enhancing dwelling space for bacterial growth installed in aeration tank as required complete all as speicfied and as per direction of Engineer-in-charge. |
| 5 | M&L for Restart up, re-comminssioning of STP 200 KLd with MBBR technology including microbial cultivation for MLSS development, stabilization and trial run of the system to meet the design parameters of raw sewage to designed treated parameters of treated sewage water including testing of inflow & treated water as per IS:3025(P-26)-1986 and APHA 23rd edition 2017 for satisfactory results complete all as specified and as directed. Note:-The tests shall be carried out from any National testing lab/ Govt authorized lab for similar nature of tests. |
| 6 | supply and Fixing 15m3/hour Sewage Transfer Pump with 15 mtr head(Make : Kirolaskar/CRI/Equivaletn) |
| 7 | Supply and Fixing Twin Lobe AIR blower of Capacity 230 m3/hr @ 0.5 kg pressure complete with three phase motor of capacity 7.5 HP |
| 8 | Supply and fixing Monoblock Pump of capacity 15m3/hr for Filter Feed Pump |
| 9 | Supply and fixing Monoblock Pump of capacity 20m3/hr for Filter Feed Pump |
| 10 | Supply and fixingComplete Pipeline for the Entire 200 KLD STP plant for equilization tank, MBBR I, MBBR II, Tube Settler Tanks, Sludge Drying Beds, Dual Media Filters. |
| 11 | Relacement of Butterfly Valves of ActivatedCarbon Filter and Dual Media Filter as per direction of Engineer-in-charge. |
