Patent ID: 8057378

Claim:
A method for the decontamination and solidification of a dredged material, wherein the dredged material comprises clay-sand agglomerates having a closed structure and an initial average particle size, comprising: (a) adding a pulverized quick-lime to the dredged material to form a mixture, the mixture comprising deconglomerated dredged material having a porous structure and an average particle size smaller than the initial average particle size; and (b) adding a chelating agent to the mixture, wherein the chelating agent is a chemical composition providing chelation of and formation of coordination compounds with chemical contaminants in the dredged material, and wherein the chelating agent comprises in solution sodium chloride, potassium chloride, potassium bromide, calcium sulfate, lithium chloride, barium chloride, magnesium chloride, strontium chloride, cobalt chloride, zinc chloride, copper chloride, tannin and pyrolignous acid.