1278516991595a1267106724867-brochure-o-wartsila-solutions-2015

BALLAST WATER MANAGEMENT• Wärtsilä AQUARIUS ® ECWärtsilä AQUARIUS ® EC Ballast Water Management Systems (BWMS)provide robust technology for the treatment of ballast water using insituelectro-chlorination, across the full range of ship operating andenvironmental conditions.The Wärtsilä AQUARIUS ® EC BWMS uses a simple and efficient twostage process involving filtration and electro-chlorination (EC). Duringuptake, seawater is first passed through a 40 micron backwashingscreen filter to remove particulate, sediment, zooplankton andphytoplankton. Disinfection of the filtered sea water is then carriedout using hypochlorite generated from the side stream EC process,and controlled by the BWMS control system. Upon discharge, theballast water by-passes the filter and any residual active substanceis neutralised using sodium bisulfite, to ensure that the ballast wateris safe to discharge back to the sea in full compliance with MARPOLrequirements.The system has a modular design enabling it to be arranged tosuit conditions onboard the ship. The system can be designed and16