Veolia Water Technologies Deutschland GmbH

Gerold-Janssen-Straße 2
28359 Bremen, Germany
Phone: +49 421 53705 - 0
Fax: +49 421 53705 - 440

Grease Interceptor

State-of-Art Galley Water Pre-Treatment

GI 20

Waters originating from ship galleys contain grease, fats, oils and food waste. The Grease Interceptor operates through the principle of gravity; Substances heavier than water float down while lighter substances, such as grease and oil, rise. Galley waste water pre-treated in the Grease Interceptor can then be fed to RWO’s wastewater treatment systems for further treatment. The system is part of RWO’s Total Water Management offer.


  • Compact and robust design in stainless steel 316Ti
  • two-chamber process, designed in accordance with DIN EN 1825-1:2004 
  • cleaning-in-place (CIP) philosophy
  • optional: an electrical heating can be installed in case of aggravating circumstances

Your key benefits

  • Easy removal of solids and grease (dispose onboard or ashore)
  • Legal and safe operation while discharging
  • Expected lifetime exceeds industrial average even with difficult, acidic or super-alkaline waters
  • Various optional models available for each size
  • No consumables required for operation
  • No bad odour during normal maintenance
  • Accessibility from one side only

How it works

The Grease Interceptor system consists of a sludge (1) and a grease retaining section (2). While heavier particles float down and are collected in the lower section of the sludge collection, rising grease and oils are isolated in the upper part of the grease retaining section.

Click to enlarge