bids are invited for poly electrilite 100 percent purity , supply and mixing of de..watering poly electrolite 100 percent purity , overhauling of air compressure coupled with blower motor 7.5 hp capacity installed at sewage treatment plant , supply only compressure 90 oil suitable for air blowers all as specified , m and l for one coat of synthetic eamel paint to exposed filter media tank acf and dmf , m and l for painting to exposed ci gi ms pipe line including sluice valves fittings and nrvs at stp , materials and labour for ci butterfly valve of 40 mm bore stainless steel disc gear mountable as per is 13095 , all as per item no 22 but 50mm bore. , all as per item no 22 but 65mm bore. , all as per item no22 but 80mm bore. , all as per item no 22 but 100mm bore. , cleaning of equalizing tank grit chamber oil grease chamber stilling chamber of sewage water in the tank , cleaning of sludge holding tank of sewage treatment plant and removing of settle down sewage sludge cum mud de..silting etc , cleanig of tube sttler of sewage treatment plant and removing of settle down sewage sludge cum mud de..silting etc , cleaning of tester water tank with chlorine contact tank of size upto 6 mtr x 2.4mtr x 1.8mtr stp by removing of all deposited sludge total quantity : 39149