Patent ID: 6770205
Filing Date: 2004-08-03
Classification: B09C,C02F

Abstract:
A method for treating pollutants in groundwater comprising the steps of:(a) heating iron containing between 2 and 16 percent silicon to a temperature that creates molten iron, (b) mixing up to four percent carbon into a silica sand to create a carbon-coated silica sand, (c) contacting said molten iron with said carbon-coated silica sand, (d) cooling said iron so said iron solidifies while in contact with said carbon-coated silica sand, (e) separating said carbon-coated silica sand from the solidified body of iron to generate a carbon-coated silica sand with an iron impregnated surface, and (f) placing said carbon-coated silica sand with iron impregnated surface into the ground for treatment of pollutants in the groundwater.