At MEPC 79 in December 2022, a relative newcomer, AirTree GmbH of Germany, submitted its BWMS for basic approval, but this was not granted, reports Riviera Maritime Media.
This BWMS uses a filter on uptake and treatment through in-tank ship-derived ozone.
Ozone-producing technologyLittle is available on the website regarding the ballast water treatment system, but it seems to be connected to ozone-producing technology which originated in Taiwan.
According to the Ballast Water...
https://mfame.guru/ozone-as-a-ballast-water-treatment-technology/