REPAIR MAINTENANCE OF SEWAGE TREATMENT PLANTS OF VARIOUS CAPACITIES AND SWIMMING POOL AT VAYUSENA NAGAR NAGPUR

Material and labour for cleaning of Equalisation sewage tank for 250 KLD STP (tank size 5.0x5.0 m x 5 m water depth) total height of tank 5 mtr by cleaning entire internal surface by removing dirt, sludge etc and throw out to not exceeding of 50 mtr from site with wire brush by applying bleaching power and fresh water and clean entire surface repeatedly with fresh water and draining out soiled water including using sludge cutter pump and suction pump suitable capacity surface complete in all in as specified and directed.using acid and other suitable methods , taking out air piping ,descaling , clear holes and refixing the same complete all as specified and directed. Note:- Quoted rates shall deemed to be included cost for using fresh water for cleaning & sludge cutter pump and ladder for man entring in to tank for removing of sludge from tank and de-watering will be the contractor scope under his own arrangement, use of suitable chemical for descaling the air /water piping .

Material and labour for taking out MBBR media from tank cleaned with suitable chemical for refilling after cleaning of MBBR tanks , Material and labour for cleaning of MBBR REACTOR TANK of stp by cleaning entire internal surface by removing dirt, sludge etc with wire brush by applying bleaching power and fresh water complete all as specified and directed. The cleaning of tank includes following:- (a)Taking out MS/HDPE pipe with stainer , descaling the pipe and taking out stainer ,cleaning of stainer / repair by suitable welding or replacement of stainless steel bars / sheet as required at site. (b)Descaling of air grid and cleaning of holes for air piping. (c)Descaling of interconnecting MS piping . (d)Applying all piping inside MBBR tanks and inner surface of Tanks with two coats of epoxy paint over coat of red oxide primer .

Material and labour for taking out Tube Settler media from tank cleaned with suitable chemical for refilling after cleaning, Material and labour for cleaning of TUBE SETTLER TANK of size 3.8 mx2.2 mx2.7m for 250 KLD stp by cleaning entire internal surface by removing dirt, sludge etc with wire brush by applying bleaching power and fresh water and clean entire surface repeatedly with fresh water and draining out soiled water. Cleaning of chanels and applying the channels inside Tube setteler tank and inner surface walls of tanks with Two coats of Epoxy Paint over a coat of red oxide primer complete all as specified and directed. Note :- Quoted rates shall include for using fresh water for cleaning & sludge cutter pump for removing of sludge from tank and de-watering will be the contractor's scope under his own arrangement.

Material and labour for cleaning of HYPO SOLUTION TANK/Chlorine contact tank for 250 KLD, size of tank 4m dia x 3.0 m x1.5 by cleaning entire internal surface by removing dirt, sludge etc with wire brush by applying bleaching power and fresh water and clean entire surface repeatedly with fresh water and draining out soiled water complete all as specified and directed. Note:- Quoted rates shall include for using fresh water for cleaning & sludge cutter pump for removing of sludge from tank and de-watering will be contractor scope under his own arrangement.

Material and labour for cleaning of Sludge dryer TANK/ for 250 KLD stp by cleaning entire internal surface by removing dirt, sludge etc with fresh water and clean entire surface repeatedly with fresh water and draining out soiled waste material including using suitable equipment /tools surface complete and applying cement based paint white colour 2 coats complete all as specified and directed. Note: The waste shall be collected from sludge dryer tank and handover to department without any extra cost

Material and labour for cleaning of TREATED WATER TANK for 250 KLD , size of tank 4m dia x 6.25 mx2.2m by cleaning entire internal surface by removing dirt, sludge etc with wire brush by applying bleaching power and fresh water and clean entire surface repeatedly with fresh water and draining out soiled water including using pressure jet pump and suction pump capacity of pool surface. Applying inner and outer walls of treated water tank with 2 coats of white wash complete all as specified and directed. Note:- Quoted rates shall deemed to be included cost for using fresh water for cleaning & sludge cutter pump for removing of sludge from tank and de-watering will be contractor scope under his own arrangement.

Painting work: Painting of Installed Machineries at 250 KLD STP of the followings: Using scrapping existing paint and spraying one coat of synthetic enamel paint over one coat of primer for follwing items with using Asian/Berger paint manufacturer complete all as specified and directed. Pump Set with motor :- 06 Nos. Sand Filter :- 01 Nos. ACF-01Nos Air Blower with motor -02 Nos Sewage lifting pump :- 02 No. LT Panel/Control panel-01 nos MBBR-02 Nos, Tube Settler - 1 Nos All the suction/discharge pipe lines complete length for 250 kld stp

STP 450 KLD (SMQ)

Material and labour for cleaning of Equalisation sewage tank for 450 KLD STP (tank size 13.9 m dia x 5.5 mtr height water depth ) effective volume 378 cubic metre total height of tank 5.5 mtr by cleaning entire internal surface by removing dirt, sludge etc and throw out to not exceeding of 50 mtr from site with wire brush by applying bleaching power and fresh water and clean entire surface repeatedly with fresh water and draining out soiled water including using sludge cutter pump and suction pump suitable capacity using acid and other suitable methods before filling as required at site complete all as specified and directed. Note :- Quoted rates shall include for supplying of fresh water for cleaning & sludge cutter pump and ladder for man entring in to tank for removing of sludge from tank and de-watering will be the contractor unser his own arrangement.

Material and labour for cleaning of MBBR REACTOR TANK sewage tank capacity (volume 125 cum) free board 800 mm size of tank 5.65m dia x5m swd for 450 KLD stp by cleaning entire internal surface by removing sludge/dirt, old Unserviceable floating media and cleaning all floating media with fresh water. Dismatling of old ms pipe 100 from MBBR tank and re fixing sewage pipe from MBBR to equalisation tank,cleaning inside and outside dia of pipe Using pressure jet machine. The rate shall also included dismantling cleaning, painting by black colour synthetic enamel paint of two coat and re fixing. The rate also inlcudedleanin of all air out going pipe 40 mm from air blower to sewage equalization and MBBR tanks , and applying bleaching power in to the wall surface and clean with fresh water entire surface repeatedly with fresh water and draining out soiled waste water including using pressure jet pump and suction pump suitable capacity complete all as specified and directed. Note:- Quoted rates shall include for using fresh water for cleaning & sludge cutter pump for removing of sludge from tank and de-watering will be the contractor under his own scope arrangement.