Patent ID: 7468469

Claim:
A method for treating environmental contaminants dissolved in groundwater and absorbed onto formation matrices such as fuel hydrocarbons such that said environmental contaminants are anthropogenic contaminants that are biologically degradable under aerobic conditions, comprising the steps of: mixing a blend of magnesium peroxide and a powdered phyllosilicate which slows the rate of magnesium peroxide disassociation by reducing hydraulic conductivity and wherein said magnesium peroxide disassociates to dissolved oxygen at a substantially slower rate than if said powdered phyllosilicate was absent from said blend; treating the contaminated groundwater with said blend for approximately six months wherein the release of dissolved oxygen continues to cause said contaminates to be removed from the groundwater; wherein said magnesium peroxide and said powdered phyllosilicate are blended together, such that said magnesium peroxide ranges from 50 to 80% by weight and wherein said powdered phyllosilicate ranges from 50 to 20% by weight, respectively.