Plan 2023-24 - Water Treatment Plant

Filter unit system

Filling of existing Pressure sand filter (PSF) of dual media filter with Silex 12mm&6mm, Course sand, special grade fine sand/quartz sand, Anthracite/activated carbon, pebbles and Katalogs/MnO2/Birm only after removal of old filter media in the filter unit system and cleaning the unit. Surface cleaning and painting the vessel with epoxy paint two coats over two coat of primer finishing with synthetic enamel paint. Unit to be provided with best quality ISI marked 40NB flanged SS motorised valve for easy backwashing, rinsing & filtering with all necessary high quality filter media with sufficient capacity capable of removing turbidity of water two times as per the water quality test report of 1.8 NTU & 0.54 mg/L which is over the permissible limit as per BIS drinking water quality standard. The life period of the filter media supplied should be of minimum 3 years. All cleaning, filling with filter media, all plumbing works by connecting to existing pumping main with suitable size and specials required to deliver water reservoir to existing pump. Including service charge and transportation charge for filter media replacement (cleaning, safely removing, replacing) etc. complete

Water quality test

Water qulaity mitigation to moilothara wss in maruthomkara gp

Design Supply and installation, Trial run and Commissioning (based on site conditions and as directed by the Engineer in Charge) of Pressure sand FILTER/IRP of Dual Media filter-Anthracite and special grade fine sand /quartz sand silex and pebbles for Maruthomkara GP Moilothara WSS WITH Suitable Technology option using Mild steel PRESSURE Vessel with FRP lining, Butterfly valves with complete base media and shall be complete with face piping ,fittings valves filter media, under bed plate fitted with strainer pressure gauges cocks .manhole hand hole air vent system manufactured with good engineering, practice having minimum thickness of 5mm with manhole and cover for easy inspection and an opening provision for media removing arrangement at bottom side with dummy arrangement and painting the vessel with epoxy paint two coats over two coat of primer finishing with synthetic enamel paint capable of discharging water at 6000 LPH with a capacity to withstand the operating head of 120 m with best quality ISI MARKED Butter fly valves for easy backwashing rinsing and filtering with all necessary high quality filter media with sufficient capacity capable of removing Turbidity of water two times as per the water quality test report of 4 NTU TO THE PERMISSIBLE LIMIT AS PER BIS drinking, water quality standard .All auxiliary including fittings nuts and bolts shall be made of MS with epoxy paint. The filter may be installed in the pumping main /Distribution main near tank site in order to make the operation and maintenance easy. The life period of the filter media supplied should be of minimum 3 years and the total head loss due to PSF SUPPLIED SHOULD NOT BE MORE THAN 4M . The PSF SHOULD BE DESIGNED with a capacity to withstand 1.5 times of the above given parameters of discharge and head. The technical details of the filter unit including the complete dimensions and type of filter media used shall be annexed and include the Flow diagram, Submitting Water quality test report from KWA after commissioning of the Scheme, submitting of Operation and Maintenance manual with guidelines for troubleshooting shall also be provided and including water quality test and Labelling.The GP OFFICE BEARERS shall be given Training for the Operation and MAINTENANCE of the Plant. All civil mechanical and plumbing works by connecting to the existing pumping main with suitable size and specials required to deliver water reservoir to the using existing pump Operation and maintenance manual with guidelines for troubleshooting shall also be provided after commissioning of the filter.(2 Nos) Housing for filter units The housing arrangements should be as follows *The columns shall be on RCC foundations *Height of roof to be based on plant, and provide sloping roof *Rafters and purlins *Pre coated sheets of 0.5mm thickness to cover from top sheet only *All other sides shall be covered with mesh wire cage (size 1”x1” with gauge 1/8” fitted in angle iron 35x35x5MM duly painted with good quality paint )with a suitable opening having locking arrangement. The floor shall consist of 40mm thick concrete, The finished floor level of the treatment plant should be as per site condition with minimum of 60 cm higher than the natural ground level. The plinth protection shall be 0.15m higher than the Natural level ie the floor level of the water treatment plant will be 0.45m above plinth protection. A 1.0m wide plinth protection sloping to outside with cement concrete/interlocking pavers mix M135 with a thickness of 50 mm shall be provided all round the shed foundation. Suitable /necessary foundation for pumps and filters shall be provided.

Cost of Water quality test