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ReferencesOasis of the Seas & Allure of the Seas cruise vessels – Reference case
Oasis of the Seas vessel image

Oasis of the Seas and Allure of the Seas

Two of the world’s largest cruise vessels prior to the launch of the third Oasis-class vessel, the Harmony of the Seas, each with a capacity of over 8,000 passengers and crew.


The comprehensive Evac water and waste management solution, supplied and installed on the cruise vessels included vacuum collection systems, vacuum units, and vacuum toilets. For treatment of the black and gray water was the Evac EcoOcean MBBR (Moving Bed Bioreactor) plant installed. The supplied product scope included also food waste vacuum collection systems and incinerators for treatment of non-recyclable garbage. For fresh water generation was Evac reverse osmosis plants installed.

Evac systems can also be found aboard the third Oasis class cruise vessel Harmony of the Seas built by STX France.

Key facts

Royal Caribbean International



Cruise vessels

Evac Solutions
Vacuum collection
Wastewater treatment
Dry waste treatment
Wet waste treatment
Fresh water generation


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