Abstract: The disclosure of this application relates to a new and innovative method and apparatus for removing a variety of contaminants from soil, sediment, fine sand and clay. The disclosure describes an apparatus in which contaminated material that is comprised of particles having a size less than about 5 mm in diameter are injected into a zone of discharge from one or a number of nozzles. These nozzles are positioned to discharge liquid or cleaning fluid at a pressure from about 2000 psi to about 20,000 psi. The cleaned material is then collected and separated into liquid and solid phases. The solids, when cleaned by the use of this apparatus, can then be returned to the site without danger of contamination of the surrounding area and no disposal costs are incurred for disposition of contaminated soil.

Abstract: The invention is directed to a chemical cleaning composition containing a hydroxylated wetting agent, a chelating agent, an emulsifier, optionally a crown ether, and optionally a non-aromatic solvent. The cleaning composition is 100% biodegradable, water-based, and able to remove adhered particles having a particle size of less than 35 micrometers. The invention also relates to a process for cleaning a substrate such as a gas turbine engine.

Abstract: A novel composition for the control of fire is disclosed. The novel composition can be used as a fire extinguisher or as a fire retardant. The composition is prepared by the admixture of a preferred amount of a selected emollient, a preferred amount of a selected emulsifier, and a preferred amount of a selected dispersant in a water carrier. To the minimal mixture may be added a preferred amount of a selected oxygen competitor, a preferred amount of a selected coolant, a preferred amount of a selected radical scavenger, or a preferred amount of a selected oxygen depleting compound. In the most preferred embodiment all of the foregoing are admixed together in a water carrier. The resulting composition functions well as a fire extinguisher by extinguishing flame. It also acts as an effective fire retardant when applied to a flammable material as a prophylactic procedure.