Optimarin Ballast Systems (OBS) have gained approval from the United States Coast Guard (USCG) slashing their required holding time from[ds_preview] 72 to just 24 hours for all salinities. The certification ensures the systems are optimized for shortsea shipping routes in the US, as the time between ballast water treatment (BWT) and de-ballasting is cut dramatically. USCG requires a holding time post treatment for environmentally friendly UV systems. This is to ensure all cells are inactive before testing. However, with increased UV doses, such as those provided by OBS’ powerful 35 kW lamps, the holding time can be reduced, thus enabling greater vessel flexibility. »This is another endorsement of OBS by the USCG, which will itself be utilizing our technology in its new Offshore Patrol Cutter programme,« comments Optimarin CEO Tore Andersen. Systems with three day holding times are required to wait for that duration before discharging treated water at port. The efficacy of the 50-3,000m3/h OBS, ensures short turnarounds.
