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US 2004/0024282 A1Published application
Methods for stabilizing heavy metal containing material for disposal in saturated zone
AssigneeRMT, Inc.
InventorAjit K. Chowdhury
Life of this patent
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Abstract
A leaching-stabilized heavy metal-contaminated matrix can be stored in a subsurface saturated zone by contacting the matrix with an amount of an agent for increasing acid-neutralization capacity sufficient to provide the stored matrix a preselected permanence level.
Claims23
A method for storing in a saturated zone a leaching-stabilized heavy metal-containing matrix that leaches heavy metal at no more than a preselected level, the method comprising the step of:
- placing the leaching-stabilized matrix in a saturated zone in contact with an agent for increasing the acid neutralization capacity (ANC) of the stabilized matrix in amount sufficient to increase the permanence of the stabilized matrix to a preselected level.
A method as claimed in claim 23 wherein the matrix is stored in a mine tailings impoundment.
Dependencies are inferred from the claim text.