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Ballast Water Treatment   Oil Water Separation   Sewage Treatment   Reverse Osmosis Desalination   Splitting & Filtration

RWO GmbH is one of the leading suppliers for water and wastewater treatment systems on board ships and offshore installations. For over more than 35 years RWO’s team of engineers has been continuously developing, engineering and manufacturing high quality with cost-efficient technologies to meet today’s stringent regulations in all areas of water treatment process for new vessels as well as those undergoing retrofitting.

RWO’s portfolio includes:
 • Ballast Water Treatment
 • Oil Water Separation
 • Sewage Treatment
 • Reverse Osmosis Desalination
 • Softeners and Demineralisers


Complemented with a wide range of options, these encourage economising ships’ operations and maintenance. Such options are the Bilge Economiser, Air Conditioning Copper Removal (ACCuRem), Bilge Water Splitting and Filtration Unit and Grease Traps.

RWO’s current network of over more than 40 specially selected qualified sales / service agents and stations established throughout the world ensures global customers benefit from efficient and shorter communication links, response times and rapid parts availability resulting in continuous plants and systems operations.

With the many years of gathered experience, expertise and know-how in this specialised industry and coupled with a total commitment to listen and cater to customers’ needs, RWO has established a reputation as today’s reliable partner for ship-owners and shipyards.

RWO………………… Always At Your Side