How do you make productive use of otherwise unproductive CO2? How about cleaning with it?

Dry ice blast cleaning is being used by manufacturers and contract cleaners for a variety of environmentally responsible cleaning applications; from cleaning rubber tire molds and semiconductor equipment to mold remediation from flood-damaged buildings. The blast cleaning process involves accelerating small dry ice pellets at supersonic speeds through advanced hoses and nozzles. The dry ice pellets create a mini-explosion on the surface being cleaned separating the contaminant from the surface. Upon impact with the surface, the dry ice pellets sublimate (return to their original gaseous state), and the only thing left to clean is contaminant. There is no secondary waste, no chemicals to dispose of and no need to use water. Where did dry ice blast cleaning come from, how does it work and how is it benefiting companies and consumers today?