MTPS I CA CWS I Dewatering sludge removal Complete cleaning and applying bleaching powder in the inner and outer rings andpainting of MS structures in Clarifier II during AOH of Unit II

Amount

Charges for de-watering of clarifier, mixing the mud / fine sludge deposits with water while de-watering in clarifier of size 18 M radius x 6.5 M depth.

Charges for removing sludge and other foreign particles from the clarifier of size 18 M x 6.5 M depth.

Charges for cleaning the algae deposits on the side walls of both inner and outer rings of clarifier and bottom surface with coir/wire brush. Applying and cleaning with bleaching powder on both side walls of inner ring & outer rings and also at bottom surface in clarifier –II.[Bleaching powder -250kgs under contractor scope].

Charges for de-watering of sludge disposal pit, removal of sludge from sludge disposal pit, and also tunnel pipes from clarifier to sludge pit. Cleaning of algae deposits with coir / wire brush, and applying & cleaning with bleaching powder on inside walls of sludge pit, flash mixing chamber in clarifier –II (Bleaching powder-150kgs under contractor scope & De watering pumps of Capacity 2 HP & 1 HP with Starter & cable, PVC Hoses 50 Mtrs are contractor scope).

Charges for cleaning & painting with one coat of epoxy red oxide primer and one coat of epoxy high build coal tar one over the other with proper intervals for clarifier structures immersed in the water , Sun shield roof truss and structure frame inside flash mixing chamber of Unit II . (Required quantities of paints epoxy red oxide primer-18Ltr, epoxy high built coal tar-32Ltr, thinner -8Ltr, etc are of contractors scope)

Charges for cutting and removal of existing deteriorated bolts of scrappers, removing damaged scrapers, cutting of scrapper rubber to required dimension from old conveyor belt, marking and making holes on scrapper rubber and fixing with new G.I bolts and nuts in the traction drive in clarifier –II [G.I. hex. bolts of size M 12 x 70 mm with nuts and 2 Nos. plain washers (104 Nos .) / clarifier on contractor scope]

Charges for renewal of M.S angle in the structure of the Traction/ Flocculater drive including removing the existing corroded / damaged and cutting the M.S. angle 45x45x5 mm size to the required size, leading , lifting, positioning & welding for Strengthening in clarifier II. (Required qty. of M.S. angle will be supplied by TANGEDCO at free of cost ).

Charges for dismantling cleaning, inspection , renewal of bearings & other spares of flocculator drive gearbox,& reassembling checking the operation of clarifier-II

PREETHI ENTERPRISES