bids are invited for operation and maintenance of effluent/sewage treatment plant - complete system; aicmc operation of 400kld main stp near airport school and stp near cisf barrack at calicut airport; under amc and functional - daily operation of 400 kld main sewage treatment plant near airport school and stp near cisf barrack as per the inventory details provided in the tender document, round the clock/ as per sl. no. 1 of annexure a of particular specification on all days including sundays and holidays etc. , all inclusive comprehensive maintence of 400 kld main stp near airport school including providing necessary spares, consumables and keeping the treated water values within design standards including yearly servicing of pumps, blowers, panels , odour control unit etc. and replacement of media for acf, psf and ocu as per technical specifications and oem standards. , all inclusive comprehensive maintence of stp near cisf barrack including providing necessary spares, consumables and keeping the treated water values within design standards including yearly servicing of pumps, blowers, panels and replacement of media for acf, psf as per technical specifications and oem standards. , removal of solid waste from sludge bed and oil trap at main stp near airport school and disposing them outside aai premises as per government norms