Wärtsilä Handles Dry Waste in Cruise Ships

By ,   December 4, 2016 ,   Cruise Industry

Wartsila recently developed complete offering for handling cruise ships' dry waste. The new offering complements company’s portfolio for handling wet waste, this way providing total waste management offering. Waste treatment is a key element of the global shipping industry’s focus on sustainability, and is an important part of Wartsila’s environmental strategy.

The new total offering for both ‘black’ and ‘grey’ water waste, as well as disposing of dry and food waste has been ordered for one new vessel to be built by the Meyer Werft shipyard for British cruise operator Saga Cruises. The order for the Wartsila equipment was placed in September, with an option for a second vessel.

The overall ‘full treatment’ solution will provide the vessels with an environmentally clean, safe, and energy efficient means of handling their effluent and garbage. The Wartsila equipment utilises new membrane technology that is particularly energy efficient, with energy savings of up to 50% over conventional membrane systems.

Each vessel will be fitted with Wartsila’s Advanced Wastewater Treatment system, including grease traps, buffer tanks, and membrane bioreactors; Wartsila’s Dry Waste Disposal system, including densifiers, glass crushers, bale compactors and storage; Wartsila’s Food Waste Vacuum system, including feeding stations, shredders, collection tanks, vacuum stations, decanters with flocculation, and food waste chutes; Wartsila’s Bio-Sludge Treatment system, including a de-watered bio waste silo, decanters with flocculation, a dryer, and a dried bio-sludge silo; and Wartsila’s Dry Garbage system, including shredders, a dry waste silo, and incinerator.

When completed, the 236 metre long vessels will offer capacity of 999 passengers. They will sail in some of the world’s most environmentally protected sea areas, including the Baltic Sea and Alaskan waters.

The Wartsila Advanced Wastewater Treatment system is in full compliance with IMO Resolution MEPC 227 (64) including ch 4.2 nutrient removal (Helcom), MARPOL annex IV Reg. 9.2 and 11.B, the Alaska Murkowski Standard (USCG / Alaska continuous discharge standard and Alaska General Permit, and the USA EPA VGP 2013.