Abstract: The present invention is directed to fluorine-free firefighting foams containing one or more biopolymers. The biopolymers of the compositions of the present invention include for example, diutan, guar, xanthan, scleroglucan, and combinations thereof.

Abstract: Disclosed herein are compositions comprising a super absorbent polymer (SAP) concentrate mixed with a long-term fire-retardant concentrate, prior to dilution with water, to form a mixed concentrate and methods of making such compositions. The mixed concentrate composition can be subsequently mixed with water to produce an aqueous fire-fighting solution.

Abstract: A method and system for diluting and dispersing chemicals that includes a plurality of concentrated liquid chemical containers, a plurality of control valves each in corresponding fluid relationship to the plurality of concentrated liquid chemical containers, at least one additional concentrated chemical container, a positive displacement pump in fluid relationship with the at least one additional concentrated liquid chemical container, a high pressure pump connected in fluid relationship to each of the plurality of control valves, at least one metering device located in fluid relationship between at least one of the plurality of control valves, a fluid pressure adjustment valve connected in fluid relationship to the high pressure pump and a source of solvent or diluent, a hose connected in fluid relationship to the fluid pressure adjustment valve, and an applicator connected to the hose for dispersing a mixture of a solvent or diluent and at least one concentrated chemical.