SUBMARINE DEFENSE MILITARY AND SURVEY PATROL SHIP (MILGEM) PROJECT
Sector: Marine
Location: Turkey
Raw water source: Seawater
Capacity: 10 m3/day
The MILGEM project, is an important contribution to our country’s defense industry; it is a new dimension in the advancement of Naval forces, increases Turkish Armed tforces capabilities further, contributes to the regional peace and especially a cornerstone in developing and applying most advanced technologies in homeland thus leading to self sufficiency.
The project scope includes supplying completed ships “Heybeliada” and “Buyukada” and 3rd and 4th ships which are under construction with treatment systems for drinking-potable water and water with special application.
The project will provide the patrol ship personnel and certain systems of the ship with water obtained from seawater using reverse osmosis method while navigation. Water taken from sea is passed from bag filters and cartridge filters installed on the reverse osmosis line for sensitive pre-filtration.
High pressure pumps feed reverse osmosis system with 5 membranes to remove salts from seawater. Product water of reverse osmosis system is remineralized to upgrade it as drinking-potable water. Drinking water is collected in cisterns and disinfection is provided by ultraviolet system. Besides drinking water, a separate line from reverse osmosis system is directed to the manual mixed bed deionization system to get water for special application.
Taking into consideration the fact that while the ship is waiting or under maintenance near the shore, it will get its water from onshore, shore filling circuit is designed as separate facility and necessary actions are taken with the help of mechanical filters and disinfection systems.
While designing, all possible situations while navigation is considered and necessary precautions are taken with the help of finite elements modeling and shock analysis. Seawater with 42,000 ppm of salinity at 250C temperature is converted to the drinking water of 10 m3/day suitable for needs of military personnel, for operational and maintenance needs using reverse osmosis and remineralization systems, and 0.5m3/day of special usage water for cleaning of gas compressor details with deionizing mixed bed systems.
