Bilge cleaner degreaser

As used in commercial shipping this highly effective product is used for cleaning bilges and engines.

But how can a product used to clean oil be biodegradable?? An obvious question:
....Firstly, as it cleans the oil and hydrocarbon pollutants it does not add to the overall pollutant as a solvent would.
.…Secondly if left long enough it would eventually effectively breakdown the hydrocarbons using bacteria and enzymes known to eat hydrocarbon.

This is a truly biodegradable product manufactured specifically for the marine industry and used by ferry companies and cruise ships.

Available in a durable aluminium spray bottle and as refill sachets