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US 2011/0031186 A1Published application
Calcium carbonate and calcium carbonate-containing materials for removing bioagents from water
AssigneeAlternative Energy and Environmental Solutions, LLC
InventorsSong Jin, Paul Fallgren, Anhuai Lu
Life of this patent
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Abstract
Calcium carbonate (CaCO3; calcite) and CaCO3-containing materials are known to have high adsorption capacities for polar organic compounds. This invention includes the use of CaCO3 and CaC O3-containing materials (e.g., synthetic calcite, calcite coated sorbents) and their mixture with other materials (e.g., activated carbon, resins) for removing bioagents (viruses, bacteria, hormones, pharmaceutical intermediates, and other hazardous biological agents) from waters.
Claims20
A system for filtering fluid, comprising:
- a carrier, and
- a quantity of calcium-carbonate (CaCO3) associated with said carrier;
- wherein the carrier is configured to allow a user to contact the CaCO3 with a fluid to remove a bioagent from said fluid.
A method for filtering liquid, comprising:
- providing a quantity of calcium-carbonate (CaCO3);
- and
- contacting said CaCO3 with a fluid to remove a bioagent from said fluid.
A filter, comprising:
- a container having an interior volume, and
- a quantity of calcium-carbonate (CaCO3) material disposed in the interior volume,
- wherein the container has an inlet and an outlet in fluid communication with said interior volume, said inlet, outlet and interior volume configured to enable a fluid to be introduced through the inlet to contact the CaCO3 material.
Dependencies are inferred from the claim text.