WBPHED/EE/MSD/NIeQ/01 OF 2020-2021_SL_06

Amount

Balance work of Construction of AIRP including planning, physical survey, investigation soil test for Multistage system, structure/hydraulic design of different components including design of Electrical/Mechanical Equipments on basis a process deptt. Drawing (Modified Sujapur Sadipur Model) including vetting of (all civil structures & Electro mechanical components including channel, inter connection (inlet & outlet) from T.W & Over Head Reserovir , Back wash, Top wash (up flow) arrangement, recirculation arrangement) from any govt. recognized Engineering Institution and submission of report, detailed design, drawing, documents in four hard copies along with soft copy in Auto Cad format in CD/DVD all complete to achieve min. effciency as per CPHEEO manual guideline (single/multistage) based on oxidation followed by chemical co-precipaitation, filtration etc. as per deptt. Process/hydraulic design consisting of oxidation chamber with 30mm. detention time. Mech. Flash Mixer, Clarifloculator, Pressure Filter, Activated Alumina Polishing Unit (2yrs. Packing media) with Pneumatic Valves and control arrangements, conforming to specification of latest CPHEEO manual /BIS codes, solid liquid sludge separation bed with 100% recirculation facility (including recirculation pump & other allied electrical accessories, Voltage Stabilizer, control panel, PLC, Actuator operted valves cables for darwing electrical power from existing power line and other fitting, fixing all complete) including the cost of allaccessories & R.C.C. sludge storage tank (Twin unit) etc. C.W.R with min. 300mm detention time. chemical with chemical deeding arrangement (e.g.Metering pump, agitator etc.) oxidation by chlorination and post chlorination facility with all safety device, fadgets etc. Back washing arrangement with air and water, back washing done from the existing O.H.R and including required pipe connection, valves etc., air compressors, blower etc. Administrative building (min. 100 m2) with standard office furniture and water supply & sanitary arrangement etc. and arrangement for daily testing of standard drinking water parameters mainly As. Fe. Residual chlorine, PH as per BIS standrad including cost of equipment & furniture, necessary pipe connection etc. with integration of total plant and painting to internal face of all water retaining structures including pipes/ shesp/ channel /interconnection etc. with approved anticorrosive paint and pther surfaces including building approved cement based paint and all other exterior surface by approved weather cost paint. Solid sludge to be screped and stored in sludge tand have to be utilized in making cement mortar block for use and replenishment of top media after scratching & filled by fresh media for its original shape. This item included trial run for a period of 3 (three) months and 9 (nine) months O & M after satisfactory completion of 3 months Trial run including chemical labour etc. all complete. i) With activated Alumina polishing unit all complete in all respect as per approved Drawing..

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Add @ 12 % GST of Total (A)=

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Add @ 1 % CESS of Total (B) =

SANJAY BISWAS

M/S. GOUTAM CHAKRABORTY

M/S.RUBIET HOSSAIN