Food waste is heavy and quickly starts growing bacteria which produce smells. By collecting and grinding this fraction where it is produced, the work for the crew is minimized and proper hygiene is maintained in the galley.
Strict rules for discharges
After collection in a vacuum system the food waste is stored in a separate holding tank which allows for controlled discharges only in permitted areas, as required by IMO Marpol Annex V and local legislations.
Discharge to the grey water or black water tank is not recommended since it may result in malfunctioning of grey or black water treatment systems with potential discharge in prohibited areas as a result.
Grease and cooking oil residuals are separated in a closed, high efficiency separator. The grease is discharged to a sludge burner or port without any contact with the crew.