Wartsila now offers total cruise ship waste solution

New vessel to be built for Saga Cruises will be equipped with a new total waste management system from Wärtsilä New vessel to be built for Saga Cruises will be equipped with a new total waste management system from Wärtsilä

DECEMBER 1, 2016 — Wärtsilä has recently developed a complete offering for handling dry waste in cruise ships, complementing its portfolio for handling wet waste and enabling it to provide a total waste management offering.

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

The overall "full treatment" solution will provide an environmentally clean, safe, and energy efficient means of handling effluent and garbage. The Wärtsilä equipment utilizes new membrane technology that is particularly energy efficient, with energy savings of up to 50 percent over conventional membrane systems.

"Wärtsilä offers a complete range of environmental solutions that meet both current and anticipated maritime regulations," says Kevin Robertson, General Manager, Water Systems Wärtsilä Marine Solutions. "Our waste treatment systems are state-of-the-art in terms of both technology and energy efficiency. Saga Cruises and Meyer Werft are both important customers, and we have tailored the solution for these ships to meet their specific needs and requests."

"We have a good relationship with Wärtsilä and are very familiar with the high quality of their solutions and the excellent level of support we can expect from them. Having a single supplier for the complete handling of all waste, both wet and dry, means fewer interface challenges which adds value to the project," says Bernd Wiltfang, Meyer Werft.

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

When completed, the 236 m long vessels will carry 999 passengers and will sail in some of the world's most environmentally protected sea areas, including the Baltic Sea and Alaskan waters.

The Wärtsilä 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.

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