Abstract: An injector head for delivering particulate material from a feeder source to a receiver is fitted with a plurality of splitter bars extending generally laterally from the sidewalls thereof into the space through which particulate material is fed as it flows into a receiver. Spray nozzles mounted to said sidewalls below said splitter bars spray coating material generally laterally relative to said sidewalls and generally laterally relative to the length of said splitter bars so as to coat particulate material as it passes over and to the sides and ends of said splitter bars.

Abstract: An injector head for delivering particulate material from a feeder source to a receiver is fitted with a plurality of splitter bars extending generally laterally from the sidewalls thereof into the space through which particulate material is fed as it flows into a receiver. Spray nozzles mounted to said sidewalls below said splitter bars spray coating material generally laterally relative to said sidewalls and generally laterally relative to the length of said splitter bars so as to coat particulate material as it passes over and to the sides and ends of said splitter bars.

Abstract: An in situ method of mixing a first material with a second material involves disposing the second material over a layer of the first material, disposing a mixing apparatus through the first and second layers of material, and mixing the first and second materials with the mixing apparatus. The mixing apparatus includes an endless cutting assembly which is movable along a loop path. The cutting assembly includes a plurality of teeth which convey the second material downwardly and mix the second material with the underlying layer of the first material. The method has particular application in converting mineral waste materials such as phosphogypsum into useful mixtures which can be used as construction fill.

Abstract: A method and apparatus for the in situ treatment of soil, sludge, and the like for purposes of remediation, solidification, stabilization, and/or enhancement thereof involves the use of a machine including a mobile carrier and a mixing apparatus mounted thereon for cutting through and mixing strata of an area which is to be treated. The mixing apparatus includes a boom having disposed thereon an endless cutting assembly which is moveable along a looped path, the cutting assembly including a plurality of teeth which convey material downwardly and mix it with underlying material which is to be treated. The cutting assembly is vertically moveable for positioning at a desired depth in the sludge or other material which is to be treated.