National Environmental Engineering Research Institute Tender
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National Environmental Engineering Research Institute - NEERI Tender
Housekeeping Services
Eprocure
Opening Date26 Jun 2024
Closing Date2 Jul 2024
Tender Amount₹ 2,82,855
Costs
EMD
₹ 6,000Document Cost
Refer DocumentsTender Fee
Refer Documents
Description
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Contact
Tender Id
2024_CSIR_199366_1Bid Award Id
ViewTender No
50(98)/2023-24/WTender Authority
National Environmental Engineering Research Institute ViewPurchaser Address
-Website
http://csir.res.in
GEM & Bid Advisory Services
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Documents
BOQ Items
Second Cleaning in a year ( For next six months of contract after completion of first cleaning) Cleaning of Under ground & Overhead water storage reservoirs and tanks of any height as per the hygienic & scientific methods of tank cleaning as per specification , procedure(attached in Annexure 'A' * and instruction of Engineer in charge . ( polythelene and RCC tank)
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Storage Capacity more than 25000 - 1000000 Ltrs.
1750000
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Storage Capacity from 500 to 5000 Ltrs.
49000
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Annexure 'A' Procedure to be adopted for Tank cleaning Stage I In the first stage of Tank cleaning involves the thoroughly cleaning of the manhole and surroundings full of dirt, mud and algae. Stage II
The process further continues with cleaning of the walls and ceiling of the tanks by scurbbing and special high pressure jet which dislodges the layer of dirt on suface of the tank. The cleaning of this tank fully removes the layer of calcinations and dirt. Stage III
After cleaning of all the walls and the ceiling totally, the dirty water and sludge is removed using a special sludge pump. This pump disposes off the sludge to any convenient and safe place outside the drinking water tank.
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Stage IV After removal of major part of silt/sludge the floor of the tank is to be thoroughly cleaned by the high pressure water jet removing all the remaining dirt and algae. The remaining sludge and dirty water is again removed by high pressure vacuum pump and disposed off to a safe place. Stage V
The next process is the treatment at the inside walls and the ceiling by disinfectants agents like liquid chlorine/bleachiing powder which ensures that the entire surface of the walls and ceiling is made totally sterilsed. Stage VI
In the final stage, the surface of the tanks shall be treated with ultravoilet Radiaton as per direction of Engineer Incharge.
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Note:- Cleaning will be done twice in a year at the interval of six month with same process. Note:- Contractor may visit the site before quoting the rates.Tools , plants, Dewatering pumps ,plumbing related damage and issue including labour and material like sterilised boot, gloves etc. shall be arranged /provided by the contractor. Contractor has to quote his rate (for one time cleaning) and it should be inclusive of all safety precautions required for the work. Cleaning will be done twice in a year. Deductions for GST, Income tax, Building worker Cess, water and electricity charges as per actual consumption will be made from the bill. Second cleaning will be done six months after the first cleaning.
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