Tender For Type-1 - Fully Gravity System With Rg Filterplanning, Design, Investigation, Construction, Erection, Installation, Completion Testing And Commissioning In All Respect Of Entire Units Of Arsenic Cum Iron Removal Plant (Airp) Of Different Capacit, Berhampore-West Bengal
TDR : 46063954
Tender Notice
Corrigendum Details
BOQ
Expired
Berhampore
West Bengal
Corrigendum : Tender For Type-1 - Fully Gravity System With Rg Filterplanning, Design, Investigation, Construction, Erection, Installation, Completion Testing And Commissioning In All Respect Of Entire Units Of Arsenic Cum Iron Removal Plant (Airp) Of Different Capacit
Name of Work:Type-1 - Fully Gravity System with RG FilterPlanning, Design, Investigation, Construction, Erection, Installation, Completion testing and Commissioning in all respect of entire units of Arsenic cum Iron Removal Plant (AIRP) of different capacities capable of removing arsenic & Iron Present in Ground Water in different concentration to acceptable limit as per latest BIS Code manual on basis of departmental process drawing (MODIFIED SUJAPUR SADIPUR) ALONG WITH 3 (Three) years operation & Maintenance after succesful completion of 3 (Three) months Trial Run of \"Augmentation of Paschim Rampur ground water supply scheme in Bhagwabgola-I Block, under Berhampore Division-I, P.H.E. Dte. (Capacity-90.00 Cum/Hr.)
Sl. No.
Item Description
1
Construction of Arsenic-cum-Iron Removal Plant (AIRP) to reduce Arsenic concentration to 10 ppb (0.01 mg/l) and Iron to 100 ppb (0.1 mg/l) from influent concentration upto 500 ppb (0.5 mg/l) and 3000 ppb (3 mg/1) respectively (single / multi-stage) based on oxidation followed by chemical co-precipitation, filtration etc. and departmental process/hydraulic design consisting of inlet arrangement, oxidation chamber (30 minute detention time), flash mixer, flocculation and sedimentation unit, filtration unit with Back washing arrangement (including the cost of 2 years polishing media where applicable) with air and water, back wash water tank of suitable capacity, and staging height, air compressors, blower etc, with or without activated alumina chamber all with pneumatic valve and control arrangements, clear water reservoir (30 minute detention time), Solid-liquid sludge separation bed with 100% recirculation facility, including the cost of all mechanical and electrical items (but excluding the cost of Raw water inlet pumps and clear water pumps), all accessories & RCC sludge storage tank etc, chemical house-cum-store, without administrative building (with minimum 100 m2 plinth area), allied pipeline, integration of total plant etc. all complete showing all necessary arrangements, structural & hydraulic detail based on departmental drawing and specification with trial run for a period of 3 (three) months after completion of the works and 3 months maintenance after successful trial run including the cost of chemicals but excluding the cost of electricity charges.Type-4 - Partial Gravity System with Pressure Filter and Pressurized Upflow Polishing Unit — with mechanizedclariflocculator, pressure filter, with or without pressurized up-flow activated alumina chamber all complete as perdepartmental drawing no. PC-I/AIRP/Type-4/Sheet-1 & 2.I) With Activated Alumina Polishing unit
2
Operation & maintenance @ 5% per annum excluding cost of electricity but including the cost of all manpower, disinfectant and day to day maintenance [For 03 (Three) years]
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