A turbine engine cleaning system includes a foam generator configured to generate foam, from a liquid detergent, to clean a turbine engine. The turbine engine cleaning system also includes an effluent capture and detergent regeneration sub-system having an inlet configured to receive an effluent from the turbine engine, processing components configured to process the effluent to regenerate a liquid detergent, and an outlet fluidly coupled with the foam generator to enable transport of the liquid detergent from the effluent capture and detergent regeneration sub-system to the foam generator.

The present disclosure relates to compositions and methods of using the compositions for treating a floor surface. The disclosed compositions clean the floor surface, repair damage, or maintain the original look of the floor. The disclosed compositions also do not provide a permanent finish on the floor, are temporary coatings, or do not significantly change the gloss of the floor after application.

A vehicle-cleaning system and method of cleaning a vehicle are provided, the system comprises a cleaning agent dispenser configured to administer a cleaning agent to a surface of a vehicle for cleaning, wherein the cleaning agent preferably comprises one or more nanoparticulate metal oxide. In one embodiment, the system comprises a chemical agent dispenser configured to separately administer a chemical agent to the surface of a vehicle to react with said cleaning agent to form a resultant foam. The system further comprises an electromagnetic wave emitting system for providing wavelength in a range of about 200 nm to about 380 mn to activate the nanoparticulate metal oxide.