Method for removing metals from aqueous solutions using mixed lithic materials
AssigneeThe University of Akron
InventorsIra D. Sasowsky, Christopher M. Miller, Annabelle M. Foos
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Abstract
The present invention provides a process for removing metals from aqueous solutions. This process entails contacting the aqueous solution with at least one neutralizing agent and at least one precipitating agent that preferentially precipitates metals from the aqueous solution. The neutralizing agent is a lithic material that neutralizes the acidity of the aqueous solution to promote the precipitation of metals form the aqueous solution. The precipitating agent is a lithic material that serves as a preferred locus of deposition for the metals precipitated by the neutralizing agent, i.e. those metals precipitated form the aqueous solution during neutralization.
Claims11
A process for removing metals from an aqueous solution comprising the steps of:
- contacting an aqueous solution with at least one neutralizing agent and at least one precipitating agent that preferentially precipitates metals from the aqueous solution.
The process of claim 6, wherein the at least one neutralizing agent and at least one precipitating agent are added as large blocks so that the water passes over and around the blocks.
The process of claim 9, wherein the at least one neutralizing agent and the at least one precipitating agent are provided in the pipe as a mixture of pieces of the at least one neutralizing agent and the at least one precipitating agent.
Dependencies are inferred from the claim text.