Wartsila Reveals Strong Demand for Its Aquarius UV BWMS 24 January 2019 Wärtsilä secured 13 contracts for its Aquarius UV Ballast Water Management System in Q4, 2018.Author: Capt. Johnhttps://worldmaritimenews.com/archives/269509/wartsila-reveals-strong-demand-for-its-aquarius-uv-bwms/