Patent Number: 059845791
Section: claims

1. A residual biotech soil composition comprising a blend of (a) two to nine parts of incinerator ash and (b) one part of compostable organic material or compost on a dry weight basis. 2. The residual biotech soil composition of claim 1 wherein the blend includes two to six parts of incinerator ash on a dry weight basis. 3. The residual biotech soil composition of claim 1 wherein the incinerator ash is derived from incineration of municipal solid waste. 4. The residual biotech soil composition of claim 3 wherein the incinerator ash comprises bottom ash. 5. The residual biotech soil composition of claim 4 wherein the incinerator ash further includes an admixture of fly ash. 6. The residual biotech soil composition of claim 1 wherein the incinerator ash is unprocessed. 7. The residual biotech soil composition of claim 1 wherein the incinerator ash comprises processed incinerator ash which has been processed according to at least one process selected from the group consisting of the following processes: wetting, drying, crushing, screening by size, and separating by material composition. 8. The residual biotech soil composition of claim 7 wherein the blend comprises a homogeneous blend of substantially five parts of processed bottom ash and one part compost derived from composting organic solid waste, on a dry weight basis. 9. A method for forming a residual biotech soil comprising the steps of: deriving incinerator ash from incineration of solid waste;  providing compostable organic material or compost; and  forming a substantially homogeneous blend of two to nine parts of said incinerator ash and one part of said compostable organic material or compost on a dry weight basis.  deriving incinerator ash from ircineration of solid waste;  providing compostable organic material or compost; and  forming a substantially homogeneous blend of one to nine parts of said incinerator ash and one part of said compostable organic material or compost on a dry weight basis. 10. The residual biotech soil composition of claim 9 wherein the blend has a porosity substantially in the range of 50 to 60 percent. 11. The residual biotech soil composition of claim 2 wherein said blend comprises incinerator ash derived from incineration of municipal solid waste, and compost derived from composting organic solid waste. 12. A covering material for landfills and disturbed soil areas comprising the composition of claim 2. 13. A method for forming a residual biotech soil comprising the steps of: 14. A method of improving plant growth comprising applying the composition of claim 2 as a plant growth medium. 15. The method of claim 14 wherein the composition is placed at a depth of at least 60 centimeters and a dry bulk density of substantially one gram per cubic centimeter. 16. A residual biotech soil composition comprising a mixture of incinerator ash and compost, wherein the incinerator ash comprises a majority of the mixture on a dry weight basis. 17. The residual biotech soil composition of claim 16 wherein the mixture comprises at least five parts of incinerator ash and substantially one part compost.