Patent ID: 7297260

Claim:
A system for collecting and treating waste liquid from engine washing comprising: a collecting device for collecting waste liquid during a washing operation of an engine, said collecting device comprising a plurality of components, all of which are free of any physical connection to any portion of said engine during the washing operation, including, a liquid separator positioned at a distance from an outlet of said engine, said liquid separator being configured to receive washing liquid entrained in an air stream exiting said engine outlet and to separate said washing liquid from said air stream; and a liquid collector arranged to collect separated liquid from said liquid separator and liquid exiting the engine resulting from the washing operation; and a treatment device for treating waste liquid collected during said washing operation, said treatment device including a filter arranged to remove particles and ions from said liquid; said treatment device being connected to said liquid collecting device such that waste liquid is directed from said liquid collector to said treatment device for treatment in said filter.