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US 2006/0231498 A1Published application
Reactive filtration
OwnerBrian Hart, Gregory Mollerinventors
Life of this patent
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Abstract
In one embodiment, a method for removing a contaminant from alkaline water includes adding ferric iron to alkaline water until reaching a pH less than 7 to form a neutralized solution and exposing the neutralized solution to iron metal.
Claims15
A method for removing a contaminant from alkaline water, comprising:
- adding ferric iron to alkaline water until reaching a pH less than 7 to form a neutralized solution;
- and
- exposing the neutralized solution to iron metal.
A method for removing a contaminant from alkaline water, comprising:
- neutralizing the alkaline water;
- and
- filtering the neutralized water with iron.
A method for removing selenium from alkaline water, comprising:
- neutralizing the water with ferric iron;
- and
- simultaneously reducing ferric iron and selenium oxyanions in the neutralized water.
A method for removing selenium or a heavy metal from a solution, comprising applying an acidic solution containing ferric iron and selenium or a heavy metal onto solid iron metal.
Dependencies are inferred from the claim text.