Ozone has an important but as yet largely unfulfilled role to play in reducing damage to marine ecosystems, as well as, improving the onboard environment and living conditions for all shipboard personnel. Ozone can provide pure and safe potable water that is critical to vessel safety as pure water has an immediate impact on the health and morale of both crew and passengers. Ozone can also be the central player to eliminate chlorine in the disinfection of sewage in a new type of MSD that recycles the water for reuse in toilets. Controlling the spread of non-indigenous, invasive species transported in ballast water is another beneficial and valuable application of ozone The in situ purification of potable water in the holding tanks is in use 24/7 aboard four US Navy-owned ships, Research Vessels Knorr, Atlantis, Roger Revelle, and Melville and one NSF-owned ship, R/V Oceanus. Woods Hole Oceanographic Institution was the first to opt for an ozone-based Water Quality Assurance system to treat water stored in the ship’s fresh water holding tanks in 1996andwith immediate success of the first installation the rest followed soon thereafter. The most recent installations of the Chem-Free WQA (Water Quality Assurance) system aboard new US Navy vessels are AGOR 27, R/V Neil Armstrong, commissioned in April 2014, and AGOR28 R/V Sally Ride. Ozone is also being used on board yachts from 31 ft. to over 300 ft., both power and sail, for indoor air quality and odor control, as well as odor control in the headspace of black and gray water holding tanks and simultaneous treatment of potable water.

The marine environment, be it fresh, brackish, or salt, is exceptionally delicate. Environmental changes wrought by the activities of human activities worldwide are happening far too rapidly for marine species to evolve strategies that are necessary to successfully deal with them. Maintaining the health and viability of the marine ecosystem is absolutely essential to protect all aquatic life forms, as well as, humanity itself and preserve them for posterity. This paper will details several uniquely different applications in which ozone can best be used to the benefit of the marine environment on both outside and inside a vessel’s hull.

This content is only available via PDF.
You can access this article if you purchase or spend a download.